What Causes a Cedar Roof to Warp?

Cedar is among the top options when you’re considering protecting the roof of your home. But it is flawed; the wood tends to warp with age (around five years) if not maintained well. How do you know when cedar roof is having trouble? Check for unevenness in the profile, colorlessness, and growth of moss.

company roofing in van

Reasons behind warping The declining preservative

The first reason has something to with the preservatives in the cedar shake. The chemical begins wearing away approximately five years in service. From that moment onwards, the roof entirely exposed to the insults of nature. The mix of these events sets in the process of warping and eventual rot.

Effect of UV Rays

The exact way UV radiations harm your skin, they can do the same on your home’s roof. Sadly, you don’t have sunscreens for the roof. Not even the clouds can protect it. Constant exposure to UV rays strips the preservative eventually causing the cedar to warp.

types of roofing

Too much moisture filtration

The susceptibility of the roof to moisture absorption during highly humid days increases drastically as the preservative wears off. Other forms of roof damage such as strong winds and falling debris can further escalate rotting and warping.

Moss, mold, and mildew

With sustained moisture filtration, the growth of fungus or moss on and beneath the cedar shakes becomes inevitable. Since such extensions require moisture to survive and keep spreading the cedar will warp and rot over time if the condition continues existing.

metal roofing van is normal

Recommended that homeowners with cedar shakes on their roofs treat them once every five years to restore the preservative. Not only does it improve the appearance of the roof but also prevents it from rotting and warping into an ugly. Our Cedar-Life division has the required treatment services. Hire our Vancouver roofing services.

Vancouver Roofing Company

Cooper Roofing Vancouver
600-1285 W Broadway,
Vancouver, BC V6H 3X8
(604) 674-0319

How Long Do Roofs Last On Houses?

here are signs to repair my roof right away

Knowing the signs of an unstable roof is a must! These tips from Cooper Roofing can help you to protect your valuable investment, save you thousands of dollars in roofing repairs and keep your family and belongings safe.

These are ten critical signs that your roof may need some attention or repairs:

Age – In all probability, your roof isn’t as secure as it should be if it’s over 20 years old.

Loose or Missing Shingles – These can lead to several other potentially dangerous and costly problems for any Vancouver homeowner. A cold winter or strong winds are two of the most significant causes of loose shingles.

Exposed or Loose Nails – The nails holding your roof together can become loose over time, as the material starts to wear away with age. This, in turn, can lead to problems with the roof’s structure.

Granules – The shingles on your roof may be starting to wear away if you notice granules in the guttering on your house.

Light Leaking Into Attic – You probably have a hole somewhere in your roof if you notice sunlight streaming into your attic. A hole in the roof can lead to various other issues including ventilation issues, or damage from water and insect infestations.

Missing Or Broken Flashing – A leaking roof may be a problem, or the weatherproofing ability of your roof can be affected if the flashing is missing or broken.

Worn Or Dirty Areas – You may be experiencing a structural problem with your roof if you see signs of wear and tear, or your roof looks dirty all the time. It may be time to replace your roof; a lot of roofs naturally lose their good looks as they get older.

Curling Or Cracked Shingles – Again, it may be time to think about putting down a new roof if you notice cracked tiling or curling or split wood. All of these signs mean that your roofing Vancouver is coming to the end of its natural life.

Peeling Or Blistering Paint – The ventilation in your attic may be damaged, and it may be time for some severe roofing repairs if you spot blistering or peeling paint inside or outside.

Water Damage On Inside Walls Or Ceiling – It isn’t a good sign if you see water spots or damp spots on your ceiling or walls, as you may be looking at severe structural damage if the water starts to eat away at the trusses. Humidity building up because of ventilation problems can cause dampness, as can a leaking roof.

It’s important to understand that the above list isn’t all-inclusive, and you may need to carry out some roofing repairs if you notice seemingly random variations in your energy bills or a sagging roof.

For all your roofing needs, contact Cooper Roofing at 604-674-0319 and make sure the value and safety of your home aren’t under threat.

Roof Repair in Vancouver BC

Cooper Roofing Vancouver
600-1285 W Broadway,
Vancouver, BC V6H 3X8
(604) 674-0319

Why Metal Roofing Isn’t As Loud As You Think

Let’s do away with this myth from the very outset: Metal roofing isn’t any louder than traditional shingle roofing. I know exactly what you’re thinking – it’s a crisp, cool day in the fall. The clouds are beginning to roll in, and the wind is starting to pick up speed. You’ve just raked up of all the leaves in your front yard, and a single glance at the darkening sky has convinced you to put off working in the backyard until a later date.

You might get lucky enough to have the wind blow every remaining leaf right into your neighbor’s yard. After pouring yourself a steaming cup of cider, you nestle down into the couch and get ready to watch a movie. Thunder cracks and the wind starts howling. Acorns and other debris from local trees fall noisily onto your roof with a sound that echoes all throughout the living space like the strike of stilettos moving across a tile floor. You issue a sigh and then increase the volume on your TV. No foul. But, the rain starts to fall harder and even though it’s only rain, it sounds as though your metal roof is being pelted with hail.

What once sounded like running stilettos on tile now sounds like a veritable army of fashionistas racing around right above you. It sounds like machine guns are being used to blast nails into the metal roof. It’s not possible to hear anything that’s being said on the TV, and you’re beginning to go mad with frustration. And the only thing to blame is the metal roof that your roofer has installed, right?

Wrong. When you purchase a metal roof for your home, this scenario isn’t something that you’re going to experience.

There won’t be any pulling of your hair, using earplugs, or looking for properties in locations that have little to no rainfall each year. Metal roofing is no louder than shingle roofing. Although you won’t be straining your ears to hear what your spouse says whenever the rain starts to pick up, you’ll absolutely love the resulting decrease in your energy bill.

In addition to being much less expensive in the long run, a metal roof is far more durable, it will last a lot longer than shingle roofing, and it can make your house a lot more efficient overall.

So how is metal roofing quieter? Well, we have all made a noise maker from a tin can in the past, and we aren’t exactly dumb. Metal is loud, but when used in roofing, other roofing materials are used along with it to help mute the sounds that metal produces.

Original metal roofs were noticeably louder, but in their day, these roofs were little more than a thin, metal sheet placed directly on the rafters. Metal roofing is currently far different from this.

Now, special insulation is used in conjunction with metal roofing materials to mute excess noise. There are folds within the metal shingles that are deep-textured to limit the “pinging” noise that metal is known to produce. Moreover, the airspace between the attic and roof along with built-in ventilation will absorb the majority of the sound that occurs when anything hits the roof. If there isn’t sufficient room for creating airspace, additional layers of padded material will be installed to reduce noise pollution.

When a roofer uses solid sheathing during the insulation process, this will absorb sound more effectively than shingled roofing. So no, your home isn’t gone to sound like a veritable drum line during a rainstorm. With a metal roof, you’ll barely hear the sound of the rain at all. Researchers found that there’s only a six-decibel difference between shingle and metal roofing and that the human ear won’t register sounds until they exceed at least eight decibels.

While we’re talking about metal roof myths, let’s go ahead and debunk several more. If you aren’t already struggling with poor reception in your home, then having metal roofing isn’t going to negatively affect your cell phone reception. More likely, you’re probably already using your mobile phone in restaurants, offices and stores that have metal roofs, and without experiencing any reception issues.

Second, metal roofing will not make your house into an easy target for lightning. While metal conducts electricity, lightning is not attracted to it – it is instead attracted to the highest objects in the sky, and thus, utility poles, antennas, and even trees will be much taller than the highest point of your roof.

Metal Roofing Vancouver BC

Cooper Roofing Vancouver
600-1285 W Broadway, Vancouver, BC V6H 3X8
(604) 674-0319

The Most Common Problems With Metal Roofing Addressed

When constructing a house or replacing a roof, you will need to consider what sort of roof you will have. If you decide to go with a metal roof, you should be aware that specific challenges are inherent with these types of roofs. Below are some of the most common problems that metal roofs have and how to work around them.

Oil Canning

Oil canning is a waviness that is visible in the flat areas of a metal roof and metal wall panels. It is sometimes known as “stress wrinkles,” and this can occur in many types of metal panels, including aluminum, steel, copper or zinc panels. Oil canning can occur due to many reasons, such as from over-production (when extreme pressure is used during the process of coiling the metal). Frequent stress from coil slitting and roll forming can also cause oil canning, as well as having inadequate space for the thermal expansion and contraction of the metal panels.

To reduce the likelihood of oil canning, it is a good idea to purchase thicker metal and use a ribbed roller to break up flat spaces on the panels. Also, choosing metal panels with a low-gloss or matte finish can decrease the visibility of oil canning. Homeowners should also hire experienced roofers who know various ways to prevent oil canning.


Having a leaky roof can be very costly as it may ruin precious items in your home. Leaks can be caused by heavy rain or snow and by wind damage. In metal roofs, leaks often occur at the exposed fasteners in the panels. If the metal panels are not installed correctly, leaks may also occur; for example, if the panel screws are too tight or loose, or if the seam is not formed correctly. To ensure that these problems don’t occur, homeowners should choose a reputable contractor who knows how to do quality installations and follows the manufacturer’s recommendations.

Scuffs and Scratches

Metal roofing is particularly susceptible to scratching or scuffing. For this reason, manufacturers take extra precaution to ensure that the coil is not scratched during the preparation process or when being transported to the buyer. Edge guards should be used to protect the sheets while being shipped, and the coil should only be handled with proper lifting devices. Installers should also be careful that their tools do not rub against or drop on the metal panels when installing them, and they should avoid walking on the panels after they are installed.

If scratches or scuffs occur, the contractor can quickly fix this with paint or touch-up pen that matches the color of the roof; however, if a large area of the panel has been gouged to the core of the steel, the panel will need to be replaced.


Many homeowners prefer metal roofing because it stands up better to corrosion and degradation, and can typically last for decades. A metal roof should be chosen in consideration of the type of environment the home is in to ensure that it can withstand the climate. Most metal panels also have protective coatings which are designed to resist corrosion.

Despite these safeguards, corrosion may still occur in certain circumstances, such as when the metal is not coated correctly on the underside of the panel, causing water to get trapped underneath the panel, thus weakening the metal. Homes built close to coastal areas may also be prone to corrosion due to the effects of the saltwater, so homeowners in these areas should consider using aluminum or zinc metal panels, which are slightly more resistant to the threat of saltwater.

Dissimilar Metals and Materials

Galvanic corrosion occurs when two different metals come into contact with each other and are then exposed to water or other electrolytes. In such cases, the more active metal will experience accelerated corrosion. This is why different metals should never be combined with roof panels, as it may lead to degradation and staining. Homeowners should discuss this problem with the contractor to ensure that the proper products that will be used in the metal roof so that there will be no adverse reactions.

Chalking and Fading

Since the metal roof panels will be located in an outdoor environment, the color will eventually fade or chalk over time, despite the type of pigment or resin that is used. By choosing a high-quality adhesive, such as Kynar or Hylar, homeowners can prolong the color of the metal roof as long as possible.

Homeowners must understand the difference between chalking and fading. Chalking is the white residue that can be seen on a painted or coated metal panel. This is due to the breakdown of the paint resin, caused by UV exposure over time. Fading is when the pigment of the paint on the metal substrate begins to break down, either due to UV rays, water exposure, chemicals or pollution in the environment. These factors can cause a change in the color of the metal panels. Homeowners may also notice uneven fading, which happens because the panels on a roof aren’t always evenly exposed to the sun’s rays or other substances.

No matter what type of climate you live in, chalking and fading can happen to a metal roof. However, the extent of the chalking or fading will largely depend on the environment and other substances that the roof is exposed to. Most reputable manufacturers will offer homeowners a paint warranty that covers chalking and fading that exceeds specific measurements during a specific period. This should be explicitly set out in the warranty, and homeowners should not be afraid to ask for such a warranty if one is not automatically offered.

Installation Errors

Many other problems can stem from installation errors, including missing parts, poor rubber roofing supplies, loose screws, or be flashing that is poorly attached. While some of these problems are unpredictable, the best way to avoid them is to choose the right installer which is highly experienced in installing good quality metal roofs.

Metal Roofing Vancouver

Five Most Common Shingle Repairs for Roofs

ice dams may cause you to need roofing repair

Some roofing problems are simply more common than others, and whether it’s from damage caused by extreme weather or just regular wear and tear, eventually most roofs will need some repairs. Our expert roofing contractors inspect roofs all over Delaware regularly and tend to come across the same issues. In all probability if you do experience roofing problems it is likely to be for one of the following five reasons:

Ice Dam, Hail or Wind Damage

Roofs generally can’t withstand weather extremes despite the fact that they are designed to withstand an average amount of battering from severe weather. Your roof may need to be replaced entirely if it has extensive weather damage, although usually, our experienced roofers can restore or repair individual shingles. Another standard issue is the wearing out of the seals around the vent pipes.

Leaking Skylights

Worn seals can cause your skylight to leak, as can having it not installed safely and correctly in the first place.

Chimney Flashing

Water is prevented from leaking into your roof by flashing, that metal strip between your roof and the chimney. Counter flashing and step flashing are both needed to prevent roofing from leaking. However, it is all too easy for water to leak into your attic and potentially damage your home or your belongings if wind or hail damages the flashing, causing it to peel away from the roof. Our contractors can assess the flashing on your roof for you.

Roof Valleys

Our experienced roofers have dealt with many cases in which the roof valleys become a collecting place for snow and ice as well as tree branches and leaves. By ensuring these valleys aren’t blocked, you can keep your roofing in great shape.

If you suspect your roof is damaged, call our slate roofing company or visit our website at sooner rather than later – addressing any damage as soon as you notice it can prevent the damage from getting worse and can save you from having to pay for costly repairs in the future.

Roof Repair Vancouver BC

Cooper Roofing Vancouver
1285 W Broadway #600,
Vancouver, BC V6H 3X8
(604) 674-0319