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Commercial Roof Maintenance: Knowing when to Repair your Roof – and when to Replace It

by Roof Repair

If you’re a property owner or business owner – or even a car owner – you’ve probably agonized over whether or not you should invest the time and energy into repairing something, or take the easier (but costlier) route of replacing the entire thing.

When it comes to commercial roofs, the issue gets a little complicated.

Knowing Your Roof System

Knowing when to repair or replace your roof is a skill that few have. The reason? You really have to know how your roof works. In a residential setting that might seem easy enough – damage to shingles or clogged gutters is generally quite obvious – but there are often smaller and less obvious signs that could indicate that something is very wrong.

A commercial building often presents further challenges. Commercial buildings usually use flat roofing, which is unlikely to use shingles in favour of built-up roofing or modified bitumen roofing, which are generally covered in a layer of asphalt.. Some commercial or industrial buildings may even have a combination of flat roofing, metal, sloped metal, and/or shingled roofing, in which case you’ll have a lot of different things to watch out for.

Safely Inspecting Your Roof

This may go without saying, but please remember to be cautious when inspecting your roof! Even walking across a simple flat roof can be extremely hazardous. Visually inspect as much as you can from the ground before you climb onto the roof. If your roof is too dangerous, consider hiring a professional for an inspection.

Repairing vs Replacing your Roof:

Here are a few common roofing problems you may encounter during an inspection of a damaged roof. Use the guide below to determine whether the best course of action is to replace or repair.

Minor Damage (Repair It)

Major Damage (Replace It)

Minor Leaks:

If you notice small water stains on your ceiling or in your attic after rain or snow, it’s a sign of a leak. Small leaks can often be repaired without the need for a full roof replacement

Large, Persistent, and/or Widespread Leaks:

Multiple leaks or a history of recurring leaks in different areas of the roof suggest systemic failure. Ongoing water intrusion can cause structural damage, rot, or mold.

Missing or Damaged Shingles:

High winds, heavy rain, and other weather conditions can cause shingles to crack, curl, or go missing. Replacing these shingles can often remedy the issue if the damage is not widespread. It’s also a good idea to keep an eye out for loose asphalt granules, which can indicate wear and tear.

Widespread Shingle Damage:

While individual shingles can be replaced, extensive damage such as large areas of missing shingles, curling, cracking, or shingles that have lost their granules indicates that the roof is failing. Check for large quantities or loose asphalt granules, which can indicate significant wear and tear.

Minor Flashing Damage:

Metal flashing around vents, chimneys, and roof intersections is crucial for preventing water from entering through cracks.. If the flashing is cracked, bent, or loose, it can often be repaired or replaced to restore the roof’s integrity.

Significant Storm Damage:

After a severe storm, roofs can suffer extensive damage that is beyond repair, including holes, split seams, irreversibly damaged flashing, or missing sections, necessitating a full replacement.

Clogged or damaged gutters, downspouts, or drains:

Gutters and drains direct water off your roof and away from your property. If they’re clogged, leaking, or detached, repairing them promptly can prevent further damage.

Puddles on a flat roof

If you have a flat roof, puddles are always a bad sign. Water on a roof should always be directed toward a gutter or drain; if water is sitting, it could be a sign of structural damage.

Sagging Gutters or Downspouts:

Sagging or damaged gutters can lead to water damage on your roof and siding. Repairs or replacements are relatively easy, and can prevent potential roofing problems.

Sagging Roof:

A sagging roof is a sign of structural issues, such as weakened support, rot, or even foundational issues. This can be a serious safety hazard and often necessitates a complete roof replacement.

Small Moss and Algae Growths on the Roof:

When checking the surface of your roof – or the attic below – look for clusters of moss or algae. Their presence indicates moisture retention, which should be addressed to prevent damage.

Mold or Rot Beneath the Roof

Mold is a big problem that not only affects the overall health of a building – it can affect its inhabitants, too. If you see rot due to water ingress, your roof likely needs to be replaced – and further work needs to be done to reverse the damage inside.

Bonus note for commercial property owners: depending on the wording of your lease, repairs and maintenance may be the tenant responsibility. By conducting a series of repairs over years, instead of a complete roof replacement, much of the cost would be passed to your commercial tenant.

How Can We Help?

If you still aren’t sure what course of action is best, feel free to give us a call! Whether your roof is metal, shingled, flat, or otherwise, we’re very capable of guiding your decision making regarding what will be best for your property – and your wallet.

Get in touch today – we’d love to hear from you!

BONUS POINT FOR BUILDING OWNERS: Depending on the wording of your lease, repairs and maintenance may be the tenant responsibility. By conducting a series of repairs over years, instead of a complete roof replacement, much of the cost would be passed to your commercial tenant.

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The Importance of Roof Maintenance

by Roof Repair

Here’s How Doing Regular Roof Maintenance Can Help You Save Money

Most people don’t think about roof maintenance. Whether in a residential or commercial setting, a roof is just another part of the building that simply exists without them even needing to think about it. It’s above them, silently doing its job; out of sight, out of mind.

What they don’t realize is that even the most perfectly installed roof isn’t guaranteed for life – especially in rainy cities like Vancouver.

Maintaining the World Around Us

There’s almost nothing in the world that doesn’t require some degree of maintenance. Cars need oil changes and tune-ups. Bikes need chain oil and brake checks. Plants, gardens, and lawns need water, pruning, and weeding. If you think about it, even people need maintenance; doctor’s visits, optometry, and dental cleanings are all crucial elements of personal upkeep.

Roads need maintenance. Buildings need maintenance. Plumbing, sewer systems, computers, windows, trees, electronics, furniture – the list is neverending.

In other words: we’re surrounded by objects, possessions, and infrastructure – things that support our everyday lifestyle – that need a little upkeep. If it exists in a physical form, it likely requires some kind of periodic maintenance.

Your roof is no different.

Roof Maintenance in Vancouver

As a general rule of thumb, anything exposed to bad weather is likely to wear out pretty quickly. Here in Vancouver, we’re blessed with a relatively mild climate; however, the rain, wind, and snow that we face throughout the year make roofs very susceptible to wear and tear.

Moreover, Vancouver is a very green city; most of our streets are lined with tall, healthy deciduous trees that, while lovely to look at, drop thousands of leaves during the fall – many of which end up on our roofs, clogging gutters and drains and decaying into murky sludge – especially on flat roofs.

Consequently, roofs around here – on any type of building – often require a little more maintenance and cleanup than you might expect.

Why Roof Maintenance is Important

There are many, many reasons why roof maintenance is important, but the most compelling, convincing reason is very simple:

Roof maintenance saves you money in the long run.

To explain it simply: in terms of both time and money, the cost of fixing your home after your roof fails is astronomical compared to the cost of hiring someone to perform preventative maintenance.

Think of your roof like a suit of armour: even the most miniscule fault leaves you mortally vulnerable. If even a small amount of water gets into your home, it can ruin walls, floors, electronics, furniture, and more – and saddle you with massive repair bills. If you’re in a commercial setting and your roof fails, your entire business could potentially be ruined by the ensuing damage.

Here are a few other ways that roof maintenance can save you money:

  • Roof maintenance extends the life of your roof, meaning you’re less likely to need to replace the entire thing down the road, which is extremely costly.

  • A well-kept, insulated roof improves energy efficiency, keeping your heating bills lower.

  • A well-maintained roof helps maintain property value. It immediately suggests to potential buyers and realtors that the entire home has likely been well-cared for.

  • A well-maintained roof prevents pest infestations by sealing off entry points for birds, rodents, and insects.

What Can You Do?

Remember, your roof is an asset; maintenance keeps it from becoming a liability. The best thing you can do as a commercial business owner or property owner is to perform regular roof inspections and cleanups, which should entail:

  • cleaning your gutters and downspouts

  • clearing debris and leaves

  • checking your attic for moisture, rot, or mold

If you own a commercial property, check out our post about protecting your commercial roof.

Inspecting your Roof: How to Spot Signs of Wear or Damage

You should inspect your roof every six months (minimum). Here are a few things to look out for:

  • Missing, cracked, curled, or damaged shingles

Shingles protect the wooden components of your roof from water damage. If the shingles are breaking, then it’s extremely likely that water is getting through.

  • Moss, algae, or fungus growth

Moss, algae, and fungus only propagate in damp/moist environments. If you’re seeing signs of any of them, it’s likely that your roof is holding on to more moisture than it should be.

  • Sagging or puddles in flat roofs

Whether your roof is flat or sloped, any sagging is very likely a sign that water is getting through – and has already done some damage. A well-installed roof should never have any sagging or puddles.

  • Leaking or water stains

Leaks are an obvious sign that something is very wrong. Get any leaks fixed ASAP.

  • Slow-draining drains

Are you in a commercial building or strata with a flat roof? It likely has built-in drains, and if those drains are clogged – by leaves, dirt, or debris – then the water on your roof will have nowhere to go. A big puddle of water on your roof isn’t only a leaking hazard – it’s a structural hazard.

  • Clogged gutters and damaged downspouts

A clogged gutter can cause water to back up and sit where it shouldn’t.

  • A sudden increase in heating and energy bills

An unexpected increase in heating or cooling bills could be due to air escaping through your roof. Adequate insulation and a properly sealed roof help maintain your home’s energy efficiency.

It’s also extremely important to be aware of the age of your roof. If your roof is more than 5 years old and hasn’t been inspected or repaired recently, consider getting an inspection asap.

How Can We Help?

Your roof is the barrier between you and nature’s harshest elements.

If you’re a homeowner, property owner, property manager, or business owner, you likely already know how much work it is to keep everything pristine, so something like your roof – which may look fine, at a glance – might end up on the back burner.

But even if it seems like your roof is probably in good shape, it’s important to remember that the smallest damage to your roof – whether your roof is flat, sloped, shingled, torch-on, or otherwise – can cause massive, expensive problems down below. The cost of maintenance simply doesn’t compare.

If you’re interested in getting repairs done – or if you’d like an inspection for peace of mind – consider getting in touch. With over 75 years in business, we’d like to think we know a thing or two about protecting, repairing, and maintaining roofs. We’d love to hear from you!

 

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The Pros and Cons of Metal Roofs

by Roof Types

When most people think about metal roofs, they think only of places that get lots of snow. Sloped metal roofs, especially, are best known as workhorses against nature’s harshest (and heaviest) elements, and are common in northern or central Canadian towns and cities that receive heavy annual snowfall.

That said, there’s a pretty compelling case to be made for metal roofs – even in mild Vancouver.

The Case for Metal

If you’re walking or driving around Metro Vancouver, it’s unlikely you’ll spot many metal roofs. They’re very uncommon on residential homes, especially around here; you’re much more likely to find them on commercial buildings (or ski lodges), but even so, other types of roofing are a lot more common.

Why? There’s probably lots of reasons – shingled or asphalt roofs are cheaper up front, for example, and metal roofs might seem unnecessary due to our snowfall levels in Vancouver being significantly lower than the national average – but the main reason is likely much simpler: metal roofs just aren’t that trendy around here.

So, if everyone around you probably has some variation of a shingled and/or asphalt roof, why might you want to consider a metal roof instead?

Types of Metal Roofing

First, let’s look at types of metal used in roofing. Metal roofs are most commonly aluminum, steel, copper, or zinc alloy. Aluminum and steel are by far the most common, and both have their advantages and disadvantages: steel is costly and heavy, but durable, whereas aluminum is lightweight and rustproof, but more prone to denting.

There are many different ways for metal roofs to be installed, each of which also offer distinct advantages as far as cost-effectiveness and overall aesthetic; for now, however, let’s just look at the overall pros and cons of metal roofing.

The Pros and Cons of Metal Roofing

Pro: Durable and Long-Lasting

Metal roofs have a long lifespan and are more resistant to the elements than asphalt shingles. Depending on the type of metal you use, they’re virtually impervious to weather damage, wind damage, damage from animals, and leaks. Moreover, most metal roofs are likely to last 50+ years; shingled roofs generally only last for ~20.

Con: Can Be Noisy

In times of heavy rainfall, many people might find the sound of precipitation gently (but persistently) tapping on your rooftop a little irritating after a while. Depends on your preferences.

Pro: Low Maintenance

Because metal roofs are so durable and so resistant to water ingress, they require very little regular maintenance. While a typical shingled roof might need costly repairs due to weather damage, a steel or aluminum roof will generally take care of itself – but remember to clear your gutters and downspouts either way!

Con: Difficult to Install

Many roofing companies – especially companies that operate in a city where shingled roofs are most common – don’t have the knowledge, skill, licensing, or accreditation to install a metal roof.

Pro: Weather-Resistant

Metal roofs are so popular in snowy areas not only because they can handle the extreme weight load of snow, but also because snow tends to slide right off.

Con: Slippery

If you need to get on your sloped metal roof to clean the gutters or take down your Christmas lights, be warned that the smooth surface can make things extremely slippery – and extremely dangerous.

Pros: Energy-Efficient and Sustainable

Because metal roofs reflect sunlight away from your home or business – instead of absorbing it – it can help keep your home cooler in the summer, thereby lowering your heating bills. Moreover, if you need to replace a metal roof, it’s 100% recyclable, whereas shingle roofs – which need to be fixed and replaced more often – just end up in a landfill.

Con: Potential for denting

Some metal materials – especially aluminum and copper – can be prone to denting if hit by fallen tree branches or large hailstones.

Pro: Fire-resistant

Because metal isn’t flammable like wood or asphalt, it’s much less likely to catch or spread fire.

Con: More expensive up front

Depending on your house size and type of metal, a metal roof is likely to cost quite a bit more per square foot to install than a shingled roof, meaning your overall up-front cost might be quite inflated.

Pro: More cost-effective in the long run

However, despite being more pricey up front, metal roofs can save you money in the long run. Due to their decreased maintenance costs, increased durability and lifespan, and improved energy efficiency, they’re more likely overall to put cash back in your pocket.

How Can We Help?

Thinking of putting a metal roof on your home or business? We’d love to hear from you. We have an in-house metal shop that allows us to fabricate the parts we need, and we’re fully accredited and licensed installers.

For all your metal roofing needs in Metro Vancouver and the Lower Mainland, get in touch with Cambie Contracting for a quote.

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Types of Commerical and Industrial Flat Roofs

by commercial roofing

When you think about a roof, two words probably pop immediately to mind: slopes and shingles.

Indeed, the majority of residential homes probably have what you might call a “classic” roof system – typical asphalt shingles sat atop a network of sloping triangles, with gutters, downspouts, and eaves taking rainwater elsewhere.

Now, picture in your mind a typical commercial or industrial building or establishment. Does it have a flat roof or a sloped roof? Probably flat, right?

Let’s take a look at why.

 

Commercial Roofs Vs. Residential Roofs

Around 75% of all homes in North America have shingled roofs. They’re relatively cost-effective to install, they’re functional, and the general consensus is that they look really good.

That being said, the majority of commercial and industrial buildings have flat roofs. The roofs of larger buildings and complexes face different challenges than small residential roofs, and often need to be built differently.

For example: with little to no slope, water and drainage present a big issue. Any water, debris, or material left on a flat roof can lead to severe damage due to sinking or plugged drains, which is a key reason why regular maintenance is so important. It’s even more important, though, that a commercial roof is built and installed properly by knowledgeable, licensed professionals.

With that in mind, let’s take a look at different types of commercial and industrial flat roofing.

 

Different Types of Commercial and Industrial Flat Roofing

Built-Up Roofing

Built-up roofing (BUR) is a type of roofing system commonly used on low-slope or flat roofs. It’s been in use for over a century, which should tell you all you need to know about its reliability and longevity. It consists of multiple layers of materials that create a durable and waterproof barrier:

  • Base sheets, which are fastened directly to the roof deck and offer a foundation for the subsequent layers
  • Felts/fabrics – usually made of fiberglass – which are laid atop the base sheet
  • Bitumen (asphalt or coal tar), which is applied between the layers of felt and acts as as an adhesive and waterproofing agent
  • Surfacing, which varies depending on the project, can be gravel, mineral granules, or a smooth coating

 

Modified Bitumen Roofing

 

Modified bitumen roofing is a type of roofing material that is well-suited for flat or low-slope roofs. It’s an evolution of the traditional built-up roofing system, but with improved flexibility and resistance to environmental factors like temperature changes and sunlight

Modified bitumen roofing sheets are composed of asphalt that has been modified with polymers or rubber to improve its elasticity and durability. The sheets are versatile, and can be installed via torch application, self-adhering, or cold-applied, and often have a plasticky or rubbery quality

Valued for its reliability, durability, and ease of maintenance, modified bitumen roofing, when properly installed, is resistant to tears, punctures, and weathering, making it a suitable choice for harsher climates. It also provides better insulation than most traditional BUR systems.

 

Ethylene Propylene Diene Monomer (EPDM) Roofing

EPDM is a type of lightweight synthetic rubber roofing membrane widely used on low-slope buildings. EPDM is popular due to its durability, versatility, and ease of installation. It’s resistant to heat and weathering and is available in white or black, depending on sunlight and insulation needs.

There are several more benefits to EPDM roofing, especially in commercial or industrial flat roofing systems, including its cost-effectiveness, ease of installation, relatively low maintenance, and waterproofing qualities

 

Thermoplastic Polyolefin (TPO) Roofing

 

TPO is a type of single-ply roofing membrane that is one of the fastest-growing choices for commercial and industrial flat roofs. It’s known for its heat-reflective properties and energy efficiency. Consisting of rubber and polypropylene that are polymerized together, it can be fastened to your roof deck mechanically, adhered, or heat-welded into place.

TPO is designed to be flexible, which helps it accommodate the building’s movement and settling. Resistant to mold growth, dirt accumulation, and punctures, TPO roofs are noted for their ability to withstand chemical exposure, ultraviolet light, and ozone. They’re also energy efficient, modern, and cost-effective.

 

Polyvinyl Chloride (PVC) Roofing

PVC is a type of single-ply thermoplastic membrane widely used on commercial and industrial flat or low-slope roofs. PVC has been a popular choice in the roofing industry due to its durability, chemical resistance, and fire resistance properties.

A PVC roofing membrane typically consists of two layers of PVC with a polyester reinforcement scrim sandwiched between them. This construction enhances the membrane’s strength and durability. Like TPO, PVC roofing is highly reflective and energy efficient, particularly when finished in light colours. This reflectivity helps in reducing the building’s cooling demands, thereby lowering energy costs.

Overall, PVC roofing provides a robust, long-lasting solution for protecting a variety of buildings with low-slope or flat roofs, combining high performance with low maintenance needs.

See Related: Commercial Roof Maintenance: Knowing when to Repair your Roof – and when to Replace It

Spray Polyurethane Foam (SPF) Roofing

SPF is a type of roofing system that is applied as a liquid spray which expands into a foam, creating a solid layer across an existing roof. Since the foam is sprayed on as a liquid, it’s well-suited for unusually-shaped roofs because it forms a single, continuous membrane that covers the entire roof, without seams or joints. This virtually eliminates any waterproofing problems associated with seam failures in other roofing systems.

On top of that, SPF is an excellent insulator, a durable, damage-resistant surface, and is considered relatively eco-friendly; however, it requires maintenance and inspections, and it takes specific weather conditions (and a lot of skill) to install.

How Can We Help?

It’s a lot of info to unpack. If you’re not sure what type of roof you might need – or what type of flat roof you already have – please feel free to get in touch! Our expert roofers would be happy to take a look and give you the advice you need to get started. We’d love to hear from you.

winter challenges and roof maintenance

Winter Challenges and Roof Maintenance

by Roof Systems

Winter Challenges and Roof Maintenance

Introduction:

As winter’s icy grip takes hold, your roof becomes the frontline defender against a barrage of challenges. From heavy snow loads to ice dams and freezing temperatures, the winter season poses unique threats to the integrity of your roof. In this comprehensive guide, we’ll explore the specific challenges winter brings and outline proactive roof maintenance solutions to ensure your home or business remains protected during the colder months.

Understanding Winter Challenges:

Winter brings a host of challenges that can compromise the health of your roof. Being aware of these issues is the first step in implementing effective preventative measures. Let’s delve into the most common winter challenges:

Heavy Snow Loads:

Accumulating snow can exert tremendous weight on your roof, leading to structural strain and potential damage. In regions with heavy snowfall, this becomes a significant concern, particularly for older or compromised structures.

Proactive Solution: Regularly monitor snow accumulation and consider snow removal services to alleviate excess weight, preventing structural damage and ensuring the continued integrity of your roof.

Ice Dams:

Ice dams form when melting snow refreezes at the roof’s edge, creating a barrier that prevents proper drainage. This can lead to water backing up under the roof covering, causing leaks and potential water damage.

Proactive Solution: Install heat cables along the roof’s edge to facilitate melting and discourage ice dam formation. Additionally, ensure proper attic insulation and ventilation to minimize temperature variations that contribute to ice damming.

Freezing and Thawing Cycles:

Fluctuating temperatures create a cycle of freezing and thawing, which can contribute to the deterioration of roofing materials. This continuous expansion and contraction can weaken the roof’s structure over time.

Proactive Solution: Conduct a pre-winter roof inspection to identify and address any existing damage. Ensure that your roofing materials are in good condition to withstand the rigors of freezing and thawing cycles throughout the winter.

Condensation:

Cold temperatures outside and warm air inside can lead to condensation within the attic space. Excessive condensation can result in mold growth, wood rot, and insulation damage.

Proactive Solution: Improve attic ventilation to maintain consistent temperatures and reduce the potential for condensation. Adequate ventilation helps regulate humidity levels within the attic, preventing moisture-related issues.

Proactive Roof Maintenance Solutions for Winter:

Snow Removal:

Regularly removing accumulated snow from your roof is crucial, especially after heavy snowfall. Use a snow rake or hire professionals to safely clear excess snow, preventing the risk of structural strain.

Ice Dam Prevention:

Install ice and water shield membranes along the roof’s edge to prevent water infiltration. Adequate attic insulation and ventilation are also key in maintaining uniform temperatures to discourage ice dam formation.

Roof Inspections:

Schedule a professional roof inspection before winter sets in. Experts can identify weak points, potential leaks, and areas susceptible to ice dams, allowing for timely repairs and reinforcement.

Gutter Maintenance:

Ensure gutters and downspouts are clear of debris to facilitate proper water drainage. Clogged gutters can contribute to ice dam formation and compromise the effectiveness of the entire drainage system.

Attic Ventilation:

Proper attic ventilation is crucial in minimizing condensation. Ensure that vents are unobstructed, allowing for the free flow of air to regulate temperatures and prevent moisture buildup.

Roof Material Inspection:

Examine your roofing materials for signs of wear, damage, or missing components. Replace any damaged shingles, flashing, or seals to maintain the roof’s integrity and prevent leaks.

Sealant Application:

Apply roof sealants around penetrations, such as vents and chimneys, to prevent water infiltration. Check existing seals for signs of wear and reapply as needed.

Insulation Upgrades:

Enhance attic insulation to maintain consistent temperatures and reduce the risk of ice dam formation. Proper insulation not only conserves energy but also protects the structural components of your roof.

Conclusion:

As winter descends, proactive roof maintenance becomes a shield against the seasonal challenges that can compromise your home or business. By understanding the specific threats posed by heavy snow loads, ice dams, freezing and thawing cycles, and condensation, you can implement targeted solutions to fortify your roof.

From regular snow removal and gutter maintenance to professional inspections and attic ventilation improvements, a comprehensive approach to winter roof care ensures your structure remains resilient in the face of winter’s harsh conditions. Embrace these proactive measures, and let your roof stand strong, weathering the chill with confidence and durability. Questions? Call the experts at Cambie Roofing today.

Economical Roofing, energy efficient roof

Most Economical Roofing Solutions

by with No Comment Roof Repair

Most Economical Roofing Solutions

There are a lot of different roofing options these days but one of the more popular is an energy efficient roof. Whether you’re choosing a roof for a newly constructed home or looking to replace your old roof with more energy efficient roofing materials, we’ll help you make decisions so you can cut your home energy consumption. You will need to weigh your options and consider a variety of factors. Not only does being more energy efficient help the environment as a whole, but it also can help you save money each month as nobody likes to spend more money then necessary on heat.

What Makes a Roof Energy Efficient?

Before you do anything, you need to find out what makes a roof more energy efficient than another. For a roof to be energy efficient, it needs to do a good job of keeping your home’s warm. When a roof’s insulation isn’t good, the heat will escape into the air causing energy to be lost and your heating bill to soar. As warm air rises, it’s the job of the roof to trap the warm air into the house. The type of material that your roof is made out of will be a large factor of how energy efficient your home will be.

Wooden Shingles

Shake shingles are made of wood and are very durable and can withstand strong winds and storms making them a good choice. They are very energy efficient as they allow better air circulation. They are also popular because they fit well in Vancouver’s west coast style.
The downside to wooden shingles is that there is more maintenance than asphalt. Rot and mold can create problems in shake shingles, especially in Vancouver’s climate.

Asphalt Shingles

Asphalt shingles are very popular in Vancouver because they are low maintenance and are relatively energy efficient roof. While Vancouver only has one bad storm every two years, homeowners need to keep in mind that asphalt shingles tend to become more easily damaged.

Metal Roofs

Metal roofs are rare in Vancouver and are generally recommended for homes in warm weathered regions like California. They are sturdy, light, and last on average fifty years without any major repair. They are made from materials like copper, steel, or aluminum. And they are thin enough that they do not absorb and retain heat from the sun which can be problematic in cold damp climates like Vancouver.

Tile Roofs

Tile roofs are great at regulating temperature, efficiently trapping heat during winter months and keep your home cool during summer days. Clay tiles are generally recommended for warmer climates because they can’t withstand hail and snow. However, in Vancouver you can get sturdier concrete tiles which are better suited for the city’s climate.
Unless tile roofs are damaged from an external force, tiles are extremely durable and long-lasting. A lot of century old houses in Europe have the same roof they had when first constructed. The roof’s underlayment however, needs some maintenance and periodic replacement. Especially if you want to keep your home insulated from the cold.

Concrete Roofing

While still rare in Vancouver, concrete is becoming a favourite roofing material option in areas that have colder climates. Concrete cement is mixed with fiber reinforcement for durability to withstand snow accumulation. And weight pressure making concrete a good choice for the most energy efficient roofing option. Concrete tiles are coated with plastic for durability and better heat trapping efficiency. The downside to concrete is that they are often the most expensive, but their durability and energy efficiency can pay for themselves.

Sprayed-On Foam Coating

Another option that doesn’t involve replacing your roof while still improving energy efficiency of your house is to coat your existing roof with polyurethane foam. Polyurethane foam is mostly used in car seats, furniture and chairs but more recently is being used for other applications. Unfortunately, the spray foam works best on flat or low sloped roofs which are unusual in residential homes in Vancouver. However many commercial buildings use a polyurethane coating to help lower energy consumption.
An added benefit to polyurethane foam is that it blocks ultra violet rays of the sun. Adding a coat to your existing roof will not cost as much as replacing it with a more energy efficient roof. It is also lightweight, and as a result not a significant burden to your existing underlayment. Polyurethane foam spray should only be applied by professional roof contractors. Roofs need to be recoated between five to ten years.

Garden Roofs

An easy way to help insulate your roof and trap the warmth is to build a garden or cover your roof with plants. This can significantly lower your home cooling and heating energy expense. The plants will absorb most of the heat during summer, and it will give your home an additional layer of insulation to trap the heat during winter.
However the downside to using plants for insulation is that they are a lot of work and can be expensive. It is really only recommended for those who love to garden. You will need a structural engineer to assess the feasibility of a rooftop garden.  He or she will tell you if the roof’s foundation would be able to support your garden. Then a drainage system has to be installed for proper irrigation. Lastly you will also need to water and take care of your garden. But the energy saving and the fresh produce you can enjoy might compensate for the effort and initial expense.

Conclusion

With new innovations always on the horizon and improvements regularly made to existing energy efficient roof options. Homeowners should always research their options when replacing a roof or building a new structure. Carefully consider your needs and look for economical roofing materials. By understanding what energy efficient roofing materials available and how they absorb heat, you can make a positive impact on the environment and save money in the process. If you have any questions about materials or the environmental impact of roofing materials give us a call at Cambie Roofing and we’ll be happy to help you.

Originally published May 2019. Updated and republished Jan. 2024

Installation of solar panels on a roof.

Solar Roofs: Are They Worth It?

by Roof Systems

Solar Roofs: Are They Worth It?

Unfortunately, much of North American still runs on nuclear power, coal and other fossil fuels. If we could get a cleaner source of energy, for example solar power it would have a big impact on the environment.

You’ve seen solar power roofs in the news, most notably when Tesla made a big splash recently with an advanced panel system that is more efficient and more powerful than the traditional technology.
But how viable is solar power in Vancouver? Is Solar Roofing Worth It? Let’s See.

Is Solar Roofing Worth It?

The main challenge is that Vancouver tends to have too much cloud cover for much of the year, especially in the winter months when electricity is most in demand. The northern latitude of the city also means days are shorter and solar radiation is less intense which of course, means less sunlight is converted to energy.  When we look in comparison to some States like California, New Mexico and Arizona which are sunny all year round and demand is highest in the summer when power generation is at its peak, solar energy makes more sense.

But that doesn’t mean that solar power will never work in British Columbia and we should write it off totally.
Lets’ have a closer look at the technology and see if the technology is and can ever be useful in Vancouver.

What If You Want A Solar Panel?

If you believe solar power is the best option for you there are multiple variables to consider when seeking out the best solar panels on the market. While more high-end panels will have higher efficiency ratings than others, investing in the best solar equipment doesn’t always result in the higher savings. The only way to find the “sweet spot” for your home is to evaluate quotes with varying equipment and financing offers.

For any homeowner in the early stage of shopping for solar that would just like a ballpark estimate for an installation, do some research online before calling anyone. There are a lot of different tools to help you estimate long-term savings and the upfront costs. You will want to compare quotes from multiple companies and multiple sources before making a final decision.

How Much Does The Solar Panel System Cost?

While there aren’t a lot of companies to choose from in Vancouver, installation prices will vary significantly depending on the solar company you choose and the equipment you install. Keep in mind installing cheap solar panels might feel like the easiest way to save some cash and get rebates, your total savings will often be higher if you invest in top-of-the-line equipment.
Don’t forget to research the solar incentives and rebates available. In British Columbia they can reduce your net cost by 50 percent or even more. In addition, the Canada government offers a 30 percent solar tax credit. Do your research as cities like Nanaimo offer additional tax incentives.

Is Solar Power Worth it?

The average cost of solar power system in Canada is currently between $15,000 and $30,000 which is far more than the average Canadian is willing to pay. The average household uses 7,500 kilowatt-hours (kWh) but of course that changes on the time of year and the price of electricity. You can certainly save money if you plan on using solar power in the long run but you will have to do some calculations to figure out how much you spend on electricity to see if it’s worth it.

In some parts of the country, you can pay as little as 8 cents per kWh; in others, you’ll pay 20 cents or more. In British Columbia, you pay 8.29 per kWh for the first 1,350 kWh you use and 12.43 cents per kWh for everything above that.
When you go solar, you effectively install a small power plant on your roof to replace the electricity you get from B.C. Hydro. That means homeowners with high electricity rates from their utility are the ones who save the most when they switch to home solar power. For people who don’t want to rely on a centralized power source this may be important. If there is a black out and if you have a solar power generator you may not be effected.

Solar Roofing In Vancouver

If you want to install solar power because you want to reduce your carbon footprint there won’t be much difference if you live in British Columbia because over the long term, the carbon footprint of hydro power isn’t much different from solar. Hydro power uses water and floods entire valleys while solar panels requires large amounts of energy and toxic chemicals for the manufacturing process.
According to scientists, solar panels in a rooftop installation produce about 41 grams of CO2 equivalents per kilowatt hour over the lifetime of the system, mainly due to the energy required to manufacture the equipment while hydroelectricity produces 24 grams of CO2 equivalents per kilowatt hour.

Last Thoughts On Solar Roofing 

For all solar electricity’s advantages, Vancouver is not the best place to install and use solar roofing system. The technology really works best where there is more sun for longer periods of time. In addition, power is not very expensive, so you won’t get much savings.

That’s not to say that solar electricity will be a bad idea forever. The technology will improve and become more affordable so sometime in the future it might replace hydro power as B.C.s number one electrical source. More forward-thinking companies like Tesla have made so much progress in cities such as Vancouver.

Originally published in 2018. Updated a republished Jan. 2024.

Roofing Tips For The Winter, Roofing in Winter

Roofing Tips For The Winter

by with No Comment Roof RepairRoof SystemsRoofing Services

Winter is definitely here in Vancouver and as you all know, the harsh conditions can cause damage and decrease the longevity of your home’s roof. If your roof needs repairs, it’s generally better to do them in the drier months. In fact, most experts say the best time to do work on a roof is from July to August when the weather is best. In a perfect world, summer would be great to finish all those projects, but your roof doesn’t just leak during those months.
Moreover, In British Columbia, where the weather is often unpredictable, these ideal conditions can be few and far between. Most roofing companies have to consider how they can perform a roofing job in the winter, in less than ideal conditions.
While not always the best, roof construction and repair can be done in cold weather, as long as precautions are taken. In winter, roofers face a variety of challenges including:

  • Roofing materials don’t work quite as well as they do in moderate temperatures.
  • Shorter days give roofers less time to work which generally means the project takes longer.
  • Tools such as nail guns generally don’t work as well in the cold.
  • Snow and ice can create hazards or cover up dangers to roofers.

What to Expect When Roofing in Winter

Roofing in winter weather requires a lot more foresight, planning and safety precautions than summer days. Be aware that some companies will charge you up to 20% more for their services, while other companies will be looking for work and might give you a discount. Whatever you do, you should shop around and get between three to five quotes and ask them specifically about their winter work.

Winter Safety Is The Most Important

Safety is obviously the most important thing when it comes to roofing – no matter what time of year. Under no circumstances should you hire a company that doesn’t take safety serious as there are some unique cold weather issues to be aware of when doing winter roofing work.
For example, roof surfaces can become slippery thanks to snow, ice, and frost. A common winter problem is snow removal or de-icing of the roof surface must be done after a snowstorm. The roofers must take extra precaution and use specialized equipment, which they need to be trained on, along with increased monitoring while the removal is taking place.

Snow can also disguise dangers such as skylights, debris and other risks. The roofing contractor needs to pay close attention to where they walk to ensure they don’t accidentally step on or fall through a skylight or trip over hazards hidden under snow. Even on a freshly cleared roof, there may be black ice or frost build-up on the roof or deck surface, which can make work extremely dangerous. If the temperature is too cold and the snow and ice remain, it is best to wait until the weather warms up.
Another thing to do before getting a roofing contractor to work is to ensure that the attic space is adequately air-condition. Often, what appears to be a roof leak is actually condensation from interior air drifting up into a cold, improperly ventilated attic.

Working in the Winter

Working in cold, damp temperatures can put a strain on the body, making your heart and lungs work harder, while at the same time putting you at increased risk for hypothermia or frostbite. Be aware roofers, as mentioned before, will work shorter hours, and plan around the sunshine and weather forecasts. Be prepared for work stoppage and delays because of the weather.
Roof contractors should also wear warm clothing that is breathable but also provides an ample range of motion. If you notice that a roofer isn’t appropriately dressed, do not let them work.

The Weigh Of Your Roof

Another thing to consider is the extra weight that snow and ice can add to a roof. If you add a human’s weight into the mix, you can potentially be looking at serious injury. A roofer must ensure that the surface he is working on is sturdy and safe from collapse. An experienced roofer will test the structure before beginning to work on it to ensure that there is no danger from collapse.

Equipment and Materials

Now you know what to expect in the winter, you also have to keep in mind the quality of craftsmanship which can suffer if the roofer is inexperienced.

Asphalt shingles

The best temperatures to install asphalt shingles is between 4 and 26 degrees Celsius. If a roofer decides to install roofing shingles in cold weather below these temperatures, your shingles may become brittle and more prone to breakage. To prevent this, when working in below-zero temperatures, make sure the roofer stores your materials in a warm place until you need them. Shingles will mould to the shape of the surface they rest on, so if you are buying them before using them, keep them flat, stacked and raised on pallets so they don’t touch the ground. Be aware that a roofer should not work in below-zero temperatures unless it is an emergency situation that needs fixing.

Types of Roofing Materials

Most roofing organizations recommend using winter weather membranes to seal your eaves, valleys, skylights, and vents, rather than warm weather roll roofing, which can buckle or warp when applied in cold weather. When you choose to use any kind of felt or membrane, the roofer will roll it out in a staging area, away from the elements and allow it to relax before you apply. This will help reduce wrinkles caused by the weather.

Conclusion

The information in this blog is purposeful to be a starting point for cold weather roofing applications. Each situation is different and as always consult a professional roofer before starting. If you have any questions, then please don’t hesitate to contact us at Cambie Roofing to schedule a free roofing estimate.

How To Prevent Ice Dams and Damage

How To Prevent Ice Dams and Damage

by with No Comment Roofing Services

How to Prevent Ice Dams and Damage

Vancouver has some of the trickiest winters since we experience rapid changes in temperature. Which can cause some trouble with our homes, especially with the roofs over our heads. When the temperatures dip below freezing and ice and snow build up on your roof, it cause plenty of damage. Which will be expensive to fix. Let’s see below How To Prevent Ice Dams and Damage.

During prolonged cold spells where snow and ice are allowed to accumulate on your roof. It can quickly build up into increasingly large blocks of ice or what are called ice dams. An ice dam not only weighs down your roof but stops water from running into your gutters and away from your home. This will cause the water to pool on your roof, causing water damage and leaks to your home’s interior walls and insulation. If left untreated, mold will form which will most likely mean you’ll have to replace your roof. Here are some tips to help prevent ice and snow buildup from causing major problems.

Prevent Ice Dams and Snow Build Up

Roofs are of course built to withstand a certain amount of weight. But if snow builds up and becomes too heavy your roof can collapse. Although this isn’t common in Vancouver, we do have bad snow storms every couple of years. If this is the case, you need to keep an eye on your roof and clear it once the storm has passed. A good general rule is that you never want more than a foot of snow on your roof at any one time. You can clear snow yourself with a rake or a shovel or call us at Cambie Roofing and we can take care of it for you.

Clear the Gutters

If Vancouver has a prolonged cold spell, it is common for ice to build up in your gutters and freeze them. If the ice builds up too much, the gutters can expand and cause them to shatter. Another common issue is that the ice becomes too heavy and can rip the gutters away, causing extensive damage to your home. You can chip the ice from gutters, but that can be extremely dangerous and you can damage your gutters. A better solution is to give us a call at at Cambie Roofing we can ensure the gutters are cleared properly so you don’t have to risk doing it yourself.

Keep the Attic Cold

As you know, heat rises in your house and gets trapped in the attic. Poor attic insulation and ventilation causes hot air to escape in the wrong places and rapidly heat the roof which melts the snow too quickly. These causes water to flow until it hits a cooler section of the roof. Usually toward the overhangs that aren’t in contact with the attic’s warm air and leads to ice build up and ice damns.

You should ensure you seal any gaps in your attic floor to stop warm air from seeping in. And make sure your attic is adequately insulated. Before the cold sets in, check the events to make sure they aren’t being blocked. While it might seem strange to add insulation for warmth but it allows cold air to come in through the vents, giving your attic some much needed air flow. The insulation also prevents moisture from building up in the attic. And keep the roof cool enough to prevent ice dams.

Insulation Issues

Insulation is a barrier of material within your roof space. It can either be laid between the horizontal beams along the floor of your attic or the rafters as a way to keep heat in your home. Check the insulation to see if it needs to be repaired. Although insulation lasts a long time, it does degrade and will eventually need to be replaced.  If heat is escaping through holes or areas that aren’t insulated then it can lead to uneven water pooling and trapped moisture. One thing to look out for is dark streaks in your attic or ceiling. If you see these dark streaks it means that water has seeped through and you should call a roofer immediately to get your roof repaired.

What To Do In Spring

Once the snow melts and winter has passed, you should inspect your property for signs of poor ventilation.  If you can catch these problem before they cause damage to your home. You will be able to save yourself some money and much needed headache.

You should always be vigilant and do your own inspections every couple of months. Simply walking on your roof with a good pair of binoculars can help you spot any trouble signs. However, your own inspections aren’t substitutions for a professional. You should always get a certified roofing contractor to do an inspection every six months. Because they will see something or notice a small detail that you can easily overlook.

The Solution

Those glistening icicles hanging from your roof may look beautiful. But, they can also be a telling sign that something isn’t draining the proper way. Icicles can be a telltale sign that water or snow are forming on your roof. That preventing melting snow from escaping through the gutters. Spending the time and money preventing ice dams is much more economical than having to deal with the potential fall out of ice dams.

If you are worried about potential ice dams developing on your roof, call Cambie Roofing to perform an inspection. Our expert roofers can quickly diagnose any problems with your roofing system. And perform maintenance to save you the trouble of dealing with ice and water damage. That possibly preventing you from having to replace the entire roof all together.

Originally published Feb. 2019.
Updated and republished Jan. 2024

The Importance of Ventilation and Insulation in Asphalt Shingles

The Importance of Ventilation and Insulation in Asphalt Shingles

by with No Comment Roof Systems

Roofs need the right balance of both ventilation and insulation to work properly, especially with the type of weather we’ve been having in Vancouver the past couple of ears. In warmer weather, poorly ventilated roofs can result in hot attic spaces which can significantly damage shingles, causing curling or even breaking, reducing the lifetime of a roof.

In the colder seasons, a lack of ventilation can trap cold air and cause moisture to build up, resulting in problems with mold, rot, and mildew, which can damage the roof and walls. Properly ventilated and insulated roofs upon are important to protecting against the problems caused by seasonal extremes and avoid costly repairs. Just think of the leaky condo crisis that cost Vancouver over $4 billion in damages because buildings didn’t have the proper ventilation.

While in Vancouver ventilation was a problem with newer buildings, it is usually common in older homes, which were generally constructed when building codes did not require as much insulation.
As many Vancouver builders discovered, creating the proper ventilation and insulation of asphalt shingle roofs is isn’t always easy. You need to get the advice of an experienced, licenced roofer to do the job correctly.

Roof Ventilation

Proper roof ventilation reduces electricity bills, extends shingle life, and prevents roof rot and ice dams in winter. Doing it right the first time also protects your house from expensive future repairs. The most important aspect of roof ventilation is to ensure your roof has vents so that the excessive moisture can escape. Ventilation is required by building codes. If you don’t properly ventilate your roof it will likely void your roofs warranty.

The number of vents within roof space will depend on the size of the roof and the material used, however, the general rule is that a single vent should be enough for a squared 30-meter roof space. A specific number of vents are required per square footage to ensure that the right amount of air enters and exits the attic.

Roof Insulation

Insulation plays a vital role in ensuring your home is properly ventilated. While you need to have enough insulation to help your house efficiently maintain a comfortable temperature. It is just as important t that you do not have too much insulation in case it blocks proper air circulation.

An experienced roofer or contractor can decide what your home needs and advice you on the proper course of action. Of course any work a roofer or building contractor does on the vents needs to be done carefully. So you do not decrease the area of the vents or anyway stop the airflow.

You probably won’t notice if something is wrong with your roof’s insulation or ventilation which is why it’s important to have an experienced, trustworthy roofer do a checkup at least once a year. If there is a problem with the airflow, they will know and be able to fix it. Often the solution depends on what is causing the lack of airflow. In the simplest and least costly case, there may be something obstructing the vents which is an easy fix.

lack of ventilation

Unfortunately, in many cases, the lack of ventilation is caused by something more serious. Such as a lack of or inappropriate placement of vents. If that’s the case, you might need to rip up a part or the complete roof to fix it.
Insulation placed on an air-sealed attic floor is simple, yet one of the most underappreciated building assemblies. A vented attic works in all types of climates to keep the home regulated.

Same, unexperienced builders do not install insulation correctly. Which causes excessive energy losses, ice dams, mold, rot which all need to be fixed sooner than it should.

If your builder has properly ventilated your roof space, then you will have to keep the vents free. So they can allow for proper air flow. This means that the vents should not be obstructed otherwise the moisture will still stay trapped within the roof structure. And eventually turn into mold and rot the wood.

Using Vents In Your Roof

There is a variety of different vents to select from when choosing a new vent for your roof. Two of the more common vents you will find are the box vent and turbine vents. The box vent uses natural air flow to draw hot air out of the attic. However they are not as effective as turbine vents and you will require more of them to properly ventilate your space. Turbine vents are wind-driven and more effective.

There is a third type of vent which are called ridge vents. But they are not as common as the first two. They, as you might suspect, run along the ridge of your roof. Moreover, They keep a more consistent temperature across your roof than box vents. And do not require wind to operate like turbines.

They are slightly more expensive, but when used with soffits. The underside of the area which connects the roof to the wall, they will keep your space well ventilated.

Conclusion

Whether you are in need a roof inspection or have a leaky, it’s important to choose a roofing contractor that is trustworthy, reliable, and experienced. At Cambie Roofing we are experts in providing you the service you need within your budget. Give us a call or email us for a free estimate.