Choosing the Right Roof Ventilation

General Roofing Systems Canada installs roof vents throughout Canada. Roof vent service in Toronto, Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler and points between.

Roof ventilation is one of the most misunderstood components of the roofing industry. Unfortunately, we respond to roof leaks all the time that are a result of improper ventilation, and the company that installed the new roof system did not even consider it. Worse yet, many companies install brand new roofing products which will only last a portion of the time it should after their clients pay good money. This is obviously a sore spot for the roofers here at GRS.

“Improper roof ventilation will cause your roof to not perform correctly and will cause ice damming, sheathing rot, mold, condensation, leaks, and will cause your roof membrane or roof shingles to deteriorate prematurely.”

The ratio of roof vent exhausts on a sloped roof is about 250:1. In other words, you need about 1 sq. ft. of roof vent (or exhaust from your roof) for every 250 sq. ft. of roof deck. This should be equal to the roof system intake, which is typically located under your roof soffits.

The main types of vents for your roof and attic are as follows:

  • Standard Roof Vents or Roof Louvers: These are the standard vents that are
    Lomanco Standard Roof Vent
    Lomanco Standard Roof Vent

    typically the ones you see everyday on sloped roofs (if you have ever stopped to notice, we know roof venting is a boring topic). These roof vents are available in a variety of styles and colours.

 

  • Whirlybirds or Turbine Roof Vents: Whirlybird vents, turbo vents, or roof
    Turbine Vent - Duraflo
    Turbine Vent – Duraflo

    turbines, as they are called generically, are the ones you see on sloped roofs that turn in the wind.

  • Powered Roof Vents or Solar-powered Roof Vents: Powered roof vents need to be hooked up by an electrician (as they use power), and solar-powered ones are obviously powered by the sun. A caution to solar buyers – be sure to use a reputable solar vent supplier and an installer of the roof vent that know what they are doing.

One of the suppliers we recommend is Lomanco. The Omni Solar Roof Vent by them is of excellent quality and the vent itself performs as advertised and performs very well. Information on this solar roof vent IIvent system is available here.

  • Ridge Line Vents or Roof Ridge Vents: Ridge venting is one method of roof venting we recommend to our customers often. The ridge vent allows constant, even predictable roof or attic ventilation. In areas in the north such as Edmonton, Fort McMurray, Lloydminster, and Saskatoon, the ridge vent can save your home from leaking due to attic condensation when snow loads will cover over the exhaust of traditional ventilation systems.
Ridge Vent on Shingle Roof
Ridge Vent on Shingle Roof

Ridge venting is more costly as the sheathing at the ridge of your roof needs to be cut on both sides for the system to be installed. However, it is well worth the cost. Lomanco, Duraflo, and GAF are our suggested providers for this system.

  • Gable Vents or Attic End Vents: Self-explanatory. This system is found on the end of your home at the gable siding.
  • Intake Vents or Soffit Vents: The intake portion of your attic venting is typically in through the soffits. There are a number of soffit style vents. Stay tuned for our blog article on calculating intake venting.

Until next time,

The Team at GRS

Miscellaneous General Roofing Documentation

Choosing a Roofing Contractor for your Roof Ventilation Install or Repair

Our Roof Ventilation Guarantee – Lifetime Workmanship Guarantee
https://www.grscanadainc.com/Roofing_Installers.html

Our Roofing Portfolio
CONTACT US:
General Roofing Systems Canada (GRS)

24 Hour Emergency Roof Repair: Call +1.877.497.3528 toll-free.

info@grscanadainc.com.

British Columbia | Alberta | Saskatchewan | Manitoba | Ontario

Roof Skylight Repairs and Installations

General Roofing Systems Canada installs and repairs skylights throughout Canada. Toronto, Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler and points between.

Skylight repair and installation is a trade in and of itself. One of the most common calls that our call center receives is the “my skylight is leaking” call or the “I hired them to install my skylight and this went wrong, and now my skylight leaks.”

Repairs and Installation – Who Do You Hire?

Our recommendation for skylight repairs and installations is to hire a repair company that has roofers who also know, and are experienced in, skylight repairs and installations. The reason is that skylights are installed on a roof – more specifically, they are typically installed on a roof curb (the skylight is mounted to the curb), and the roof curb has special flashing designed for around it and/or the skylight, with the roof curb being attached to the roof system. After all that, the roof curb (if required), the skylight flashing, and the roof membrane must all be installed properly so that your home or business does not have a skylight leak or a roof leak. We continually recommend an expert roofer that is also an expert skylight installer to be the best skylight repair and installation technician you can get.

The Cause of Skylight Leaks

Skylight repairs are more difficult at times than our roof membrane repairs – tricky to say the least. The following are some of the causes of skylight leaking which need repair:

  • Leaking due to flashing failure/flat roof membrane repairs.

The skylight flashing installation is typically the cause for a skylight leak. Repairing skylight flashing can be challenging. The skylight flashing may be a special order, or the skylight flashing will likely be apart of the roof membrane. In the case of commercial skylight repair or residential homes with flat roof skylights that are leaking, this can become more of a challenge. If the skylight leak is on a flat roof installed skylight, you may need a certified SBS modified torching roofer to deal with the skylight flashing and the roof membrane, or in the case of TPO, EPDM, PVC, or even tar and gravel roofing scenarios, quite often you will need a specialized roofer and the skylight repair coordinated in one job.

  • Leaking caused by roof membrane failure at penetration.

Roof membranes break down over time. Your skylight may be leaking because your roof membrane was either installed incorrectly or it is simply breaking down from age. Nonetheless, you will need a specialized roofer to repair the roof membrane. The shingles or flat roof membrane will require the right roofer with the right skills for the repair.

  • Leaks caused from failure.

Skylights, like everything else, age and break down. It may be that some caulking repair is required at the skylight, or the flashing needs repair, or the curb has rotted and needs replacing. Typically, if age is the cause of the leaks, with advancements in technology, you are better served replacing your skylight versus repairing it.

  • Leak caused from condensation.

Skylights were not made like they are now say… twenty years ago. New skylight technology deals with most condensation issues and there are less repairs needed as a result. However, not even the best system can stop condensation from affecting it if your attic ventilation is incorrect or something else is causing your house or attic to not vent correctly. Condensation in your attic space, home or business can be complicated to repair. It can be similar to a wiring issue in a car: frustrating.

Choosing a Contractor for your Install or Repair

Our Replacement Guarantee – Lifetime Workmanship Guarantee
https://www.grscanadainc.com/Roofing_Installers.html

Our Roofing Portfolio

Request a Skylight Replacement or Roof Repair Estimate
Until next time,
The Team at GRS
CONTACT US:
General Roofing Systems Canada (GRS)

24 Hour Emergency Roof Repair: Call +1.877.497.3528 toll-free.

info@grscanadainc.com.

British Columbia | Alberta | Saskatchewan | Manitoba | Ontario

Emergency Roof Repair Situations

General Roofing Systems Canada provides roof repairs throughout Canada. Roof Repairs are completed in the following cities; Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler, Winnipeg, Toronto and points between. British Columbia. Alberta. Saskatchewan. Manitoba. Ontario.

100_0110
Emergency Roofing Repairs

Wind Warnings and Torrential RainFall has been causing roof failures in British Columbia, while meanwhile in Southern Alberta high Winds are Blowing Shingles, Shakes, and Tiles off Roofs Again.

This week has been tough on roof systems from the West Coast all the way to Saskatchewan. Our call center has been over-whelmed with wind related roofing repairs calls along the West Coast including Victoria, Vancouver Island, Vancouver, Vancouver North Shore, and in the Fraser Valley. While in Southern Alberta such areas like Lethbridge, Medicine Hat, Okotoks, and even into Calgary have been experiencing wind gusts of up to 120 km/h.

The unusual high winds have been tearing shingles off roofs and causing general havoc with a variety of roofs types. We have received calls with complaints of skylights blowing off or leaking, roof vents, flashing, and even roof hatches needing repair.

With the heavy rain on the West Coast, this has caused flat roofs to fail, this particularly has applied to those that have drainage issues or drains that are plugged. With the cycles of having warm air thawing to only freeze again due to the Chinooks in areas like Calgary, AB, this has been resulted in our 24 Hour Toll Free Emergency Roof Repair line to receive several repair calls.

We are finding that Roofs with improper attic ventilation are having condensation issues to areas even as far north as Edmonton and flat roofs are requiring more maintenance to clear drains that are freezing over with ice.

Solutions for Roof Repairs, Attic Condensation, and Roof Drainage Issues

There are some solutions we can offer to help with the various problems roofs have this time of year. However If you cannot solve the repair or maintenance issue by yourself, call our 24 hour emergency roof repair toll free number at 1.877.497.3528 and schedule a repair person to attend.

Flat Roof Membranes
Repair Crew Fixing Flat Roof Connected to an Industrial Metal Roof

Flat Roof Drainage Problems: Flat roofs unfortunately do require some regular maintenance, especially in high winds and freeze-thaw cycles.

Roof Drainage: The roof drains are prone to clog from leaves, tree branches, and with the ice and snow melting and freezing on the roof. Drainage problems on flat roofs can also be compounded by an inadequate slope of the roof. Nonetheless, a spring and fall maintenance of the roof is key to ensuring the roof bears well during bad weather. Click here to see our  Flat Roof Maintenance check list.

Roof Inspection: Extreme winds, heavy rain-fall, and snow and ice melting should trigger an inspections to be completed. It is preferable that this is completed during the storms to ensure our technician’s ability to see if the roof drains are clear.

Roof Slope Problems: With improperly sloped flat roof systems, there are solutions to mitigate these issues. An improper roof slope can be examined with our technician at the time of inspection or while we are performing maintenance to your roof.

Condensation in Attic Spaces

Roof Sheeting Mold, Attic Mold, Condensation II
Condensation in Attic Space

Sloped or Pitched Roof Attic Condensation Problems Attic condensation repairs or remediation tend to be a more involved process requiring a number of steps.

Solving Attic Condensation

Your attic require proper ventilation. You need to check the intake air typically at the roof soffits to be sure that there is enough air coming in to your attic space. Be sure to check that insulation is not covering the air from entering your attic by following the air flow along the roof sheathing to where you come to the ridge or peak of the roof.

Check the exhaust vents (typically by each square foot or along the ridge) to be sure they are not plugged with snow and see if there are enough roof vents. You will need about 1 square foot of roof venting per 100 – 300 square feet of attic. A calculation commonly used by our roofers for attic / roof ventilation is 1:250. If the air vents exhausting the intake air is appropriate then you need to check the vapor barrier of the attic. It cannot be compromised and be letting warm air in.

Warm air rises through the attic into the roof sheathing. The snow on the roof then melts and creates ice dams. The ice dams then back up under shingles, shakes, and tiles causing leaks in to attics and then ultimately in to your house through the ceiling. If none of these problems can be found in your attic, it is best for you to then call the experts.

Shingles Torn off in winds

Wind Blows Shingles off Improperly Installed Shingle Roof in Calgary
Shingles Torn off in Winds

High Wind damage and Roof Repairs to Shingles, Tiles, and Shakes Repairing Damaged Roofs: Ultimately, after the installation of shingles, tiles, or shakes are complete and the winds begin to increase, you can now face blow-off problems. The best we can do is repair the windblown damaged roof.

How to Shingle a Roof: Prior to having your roof replaced, it is a good idea to know the specifications and the proper way to shingle a roof to ensure your roofing contractor is in check at time a roof replacement is required. Our website has a series on How to Shingle a Roof that explains the process of shingling for areas with high winds and how to avoid costly repairs due to wind damage.

Roof Underlay: Beyond the actual installation principles when replacing your shingles, shakes, or tiles there is the issue of the roof underlay. If the proper roof underlay is used and is installed correctly, then one does not have a concern in regards to shingles, shakes, or tiles being blown off. The roof underlay or membrane will keep the roof water-tight with-out the shingles so no leaks occur.

Shingles for High Winds: Finally, there are roofing shingles available that are designed to withstand high winds. Shingles like the Malarkey Legacy have high wind ratings of up to 170KM per HR which gives areas like the West Coast, North Shore of Vancouver, Calgary, Lethbridge etc. some advantage over the winds that damage roofs every year.
Should you have any questions or concerns regarding your roof, our office is always able to provide over the phone advice, set up inspections or arrange for a complete repair.

Until Next Time,

The Team at GRS

CONTACT US:
General Roofing Systems Canada (GRS)
24 Hour Emergency Roof Repair: Call +1.877.497.3528 toll-free.

info@grscanadainc.com

Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler, Winnipeg, Toronto and points between. British Columbia. Alberta. Saskatchewan. Manitoba. Ontario.

High Winds in Southern Alberta Cause Severe Roof Damage

General Roofing Systems Canada provides emergency roof repairs  throughout Canada. Emergency Roof Repairs are completed in the following cities: Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler, Winnipeg, Toronto and points between. British Columbia. Alberta. Saskatchewan. Manitoba. Ontario.

Today in Calgary, Alberta , wind storms created havoc for all commercial and residential owners. The high winds caused shingles to be blown of rooftops and even entire commercial roofs to be blown completely away. GRS has received several reports of skylights and shingles being torn completely off and thrown into traffic. As a result of the vast amounts of damage surrounding the Calgary area, the GRS crews are at capacity.

Video clip: http://www.ctvnews.ca/strong-winds-down-trees-fuel-fires-in-southern-alberta-1.732137

News report: http://www.cbc.ca/news/canada/calgary/story/2011/11/27/calgary-strong-winds-damage.html

Weather Warnings

As of Sunday November 27, 2011 at 18:30, severe weather warnings for high winds are still in effect for the following areas:

Airdrie, Bow Island, Bow Valley (Provincial Park), Brooks, Calgary, Crowsnest Calgary (Olympic Park), Canmore, Cardston, Claresholm, Cochrane, Drumheller High River Kananaskis (Nakiska Ridgetop) Lethbridge Medicine Hat Milk River Okotoks Onefour Pincher Creek Stavely Strathmore Suffield Sundre Taber Three Hills Vauxhall Waterton Park Willow Creek (Provincial Park).

High Winds Cause Havoc to Roofs and buildings

Industrial Roofing, Sparwood, BC
Emergency repair crews

Downtown Calgary and surrounding areas have had buildings glass shatter causing Calgary Firefighters to scramble in attempt to clear all debris to prevent any injuries happening to citizens.

The amount of damage that this wind storm has caused is impressive. Normally with wind storms the damage is isolated to one city and area, yet this particular storm is spreading its wrath to all of Southern Alberta. The damage that is causing is not isolated to only knocking down trees and power line. We have been receiving various types of reports of damage being caused.

In Airdrie we received reports of a church losing its siding, while in Fort Macleod, a gas station had its entire roof blown away. In Beiseker, grain silos and commercial roofs were being blown completely away.

The same variety of damage has been reported all the way to Lethbridge and surrounding areas. Grass fires have even began to occur due to the intense wind.

At the top of the Calgary Bow tower, the winds were recorded to be at a dangerous 140 km per hour, whereas in other parts of Southern Alberta is has been reported the wind gust are even stronger in areas such as Nanton and its surrounding municipalities.

The 911 call centers have been over loaded with calls relating to roof damage. As a result of this Calgary has engaged the Municipal Emergency Plan.

Steps for Fixing Damaged Roofs When high winds blow shingles, tile, and metal or damage your skylights:

1. Emergency Roof Repair Services. Call a roofing company and get on their emergency service list. In our case, we are asking emergency call ins to continue calling other Calgary Roofing Companies to be sure the soonest available emergency crews can come and assess the damage. At GRS, we are keeping a running list of home-owners and businesses that require emergency roof repair service and we are dealing with the repairs on a first call – first serve basis.

2. In extreme high winds, such as those in Calgary today, for your safety we advise you to stay away from windows and stay indoors. Due to the winds blowing off various forms of sidings, tiles, shingles skylights etc., it is unsafe to be outside with this vast amount of debris being blown around.

3. Roof Insurance: Be sure the roofing company selected to attend the repair of your shingles, commercial roof, metal flashing, or skylight keeps excellent record. You will need accurate photos before and after the roofing repairs. Make sure to ask the emergency roofers to provide you with copies of photos for your roof insurance company. Also, ask the roofing company to quote you for a complete replacement and have photos documenting all damage to your roof or skylights. After the immediate roof repairs are done, you can then address your possible roof insurance claim properly. Commercial properties are more apt to engage their Commercial Insurance Adjusters right at step one.

4. Choosing a Roofing Company: Be sure the roofing company you choose to do the roof repair work has a City Business License, have provincially incorporated roofers, Better Business Bureau registered and able to provide written receipts. Ensure that they take photos of work done for your roof insurance companies records. A quick check of complaints registered at the Better Business Bureau on line can help determine if the company is reliable. If it is a commercial or industrial roof repair, be sure the emergency roofers are qualified specific to the commercial roof system type.

5. After the emergency roof repairs are done, you have will have photos of the roof damage, and will now be dealing with your roof insurance company. Remember that insurance companies will refer you or want you to deal with specific roofers. However, in many instances, you have a choice as to which roofing company actually does the work. High Wind Shingles (Wind Resistant Shingles) Shingle manufacturers do make shingles rated for high winds.

Until next time

The Staff at GRS

CONTACT US:
General Roofing Systems Canada (GRS)
24 Hour Emergency Roof Repair: Call +1.877.497.3528 toll-free.

info@grscanadainc.com

Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler, Winnipeg, Toronto and points between. British Columbia. Alberta. Saskatchewan. Manitoba. Ontario.

Metal Roof Repair or Replacement?

General Roofing Systems Canada provides metal roof replacements throughout Canada. Metal roof replacements are completed in the following cities: Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler, Winnipeg, Toronto and points between. British Columbia. Alberta. Saskatchewan. Manitoba. Ontario.

Metal roofing is a vague word in the roofing world as it can be used to refer to a variety of systems. There are metal roof shingles, steel shingles, metal slate profile shingles, metal shake-looking shingles, metal panels, standing seam metal roofing, corrugated metal roofing, metal roof tile that are coated with granules… you get the point. The options in metal roofing are almost endless now.

One consistency that remains among the variety available to you is this: metal roofing can last longer than any other kind of roof’ however, a metal roof that is installed incorrectly will only last as long or be as durable as the workmanship of the install. If the underlay, or the venting of the roof system/attic is not correct, then problems such as leaking and ice damming will occur. With the weather that we have been receiving this year, one might see their metal roof may leak in multiple locations as time goes on. It is a frustrating experience living under a metal roof that has not been installed correctly.

To Repair or Replace?

Yesterday we had an inquiry come into our call center that is very common for us to receive. We felt this particular case would be a good addition to our blog in an attempt to help clients in their future endeavours while completing roof projects. 

On Monday, Jul 25, 2011 at 1:27 PM, the client wrote:

Hello,
We have an interlocking style metal roof that was installed by company 5 years ago by the previous owners.  The roof leaks in the winter as a result of ice damming in the valleys, and in the spring shingles annually become loose (and have blown off) on the edge of one of the valleys from the ice sliding off.  I am tired of dealing with the company (long story) and we are wondering if there is any way to repair rather than replace what they did.  We have a log house with cathedral ceilings so I suspect we need to try to improve the airflow under the existing metal shingles. I don’t know what it looks like between our open ceiling and the metal shingles above (regarding insulation and air flow). There is no venting other than vented soffits (as far as I can tell). Is there any way to seal the metal shingles so water doesn’t flow back up under them?  I don’t know if any waterproof barrier was used in the valleys and I don’t think the roof was installed very well in some parts. After talking with the previous owners a couple years ago, I know they weren’t satisfied with the installation of the metal roof, but they ended up having to relocate before going through a winter.
A couple of other things to note;  a few of the metal shingles were damaged when we were trying to remove the ice from the roof this past winter, and when we had heavy rain, the water comes off the roof before making it to the eaves.
I attached a couple of pictures of the roof so you can see the design.
Based on these pictures, if we had to replace our roof, what would be our best options (type of shingles, venting, etc.), and how could we reduce the potential for ice damming and leaking? How much would you estimate replacing a 1400+ sq. ft. home’s roof with different types of materials?  Is there a guarantee on the ice damming/leaking after the roof has been replaced? Is there anything else I need to know or can I provide you with more information?
Our Response:

Good morning,

I’m the Project Manager for GRS. I travel across Alberta solving roofing problems. However, it’s peak season and I may not be able to get out and take a look as quickly as I would like. That being said, what I am going to do is send this email to our two senior sloped technicians/foremen at GRS as well as our scheduling manager.
Our scheduling manager will keep you informed on our work in progress, and either myself, or one of our foremen, will come out to meet you. In the meantime, I’ll offer for them to chime in their input based on your email and photos (great email by the way – it helps us a lot).
Here’s is my opinion in regards to your questions….
1. From the perspective of someone that sees literally thousands of roof problems a year, my first advice would be to not listen to just any idea of repair from just anyone. Metal roofing is a specialty. A very common thing we see is homeowners trying different “metal roof” contractors in haste and it tends to end with negative results. Both of our foremen are very senior technicians that would not have you running around a circle. If we don’t get to you as soon as you like, and you hire someone else, please make sure to validate the experience of the technician. It would be more beneficial to be thorough with your next selection as any experienced person can rattle off hundreds of client situations and references. In our case, we lay out our experiences on our blog to provide our clients and future clients with quick and easy access to references.
2. I think the end result of your situation is going to be a new roof replacement. Now I understand this is not what you want to hear, and you may find it convenient in a consumer’s mind for me to say.  However, I will explain the reasoning behind my conclusion. We don’t need to sell you a roof, we’re always over-booked so the motive isn’t there. Secondly, we see these installation issues all the time; our blog is full of how to do it right – and when it isn’t done right, it is almost impossible to correct. However, in saying that, both myself and my technicians may assess your building and be able to find a less expensive solution.
3. Based upon your descriptions, I am thinking that it is an inherent design/installation issue. Metal expands and contracts and is a water shed system – not waterproofing. The roof underlay installation is flawed at the valleys. At minimum, I would think the valley areas would have to be ripped out (probably 5 feet on either side) and proper underlay installation executed and metal tiles put back in or new metal tiles placed.
4. Even after doing all that, it is a low slope roof, and you may have intermittent issues either way. That is how I end up at the roof replacement as an end result.
5. With respect to ventilation, that likely could be assessed over the phone with one of our foremen.
So I may not have helped or may have, but the bottom line is that typically the best thing to do is to start over with a roof replacement. Get the underlay, the ventilation and the water shedding product right. Once this has been completed, I believe your issues will be resolved.
Thanks
 Client Response:
Thank you for replying so quickly.  I suspected that we would have to replace the roof.  This isn’t a rush job, but if we could get it done before snowfall, that would be great. If we have to over-winter this roof again, is there anything we could do in the valleys temporarily? Like heat cables or….? The interior log walls got water staining on them last year and I am concerned with the condition of the wood below the metal tiles in the valleys.  In the case with a low sloped roof, would asphalt shingles be a better alternative to metal?
Please put me on the waiting list for an assessment.
Our Response:
 

Good morning,

No problem. The day’s just getting going here so I had the time.
With respect to roof replacement before winter, yes this is very possible. However, I would like either one of my foremen or myself to look at your property prior. I would like to make an attempt at finding a less expensive solution.
If for some reason you were thinking of not approving the work before winter, heat cables aren’t a good solution. Short of using a high quality tarp on your whole roof, it won’t help.
Metal roof systems are fine as long as the underlay is correct. Shingles won’t leak as easily, but don’t last as long. Any roofing product will work as long as the roof underlay and venting is correct.
We will get out to your property as soon as possible to meet you and take a look.
Thanks

Copy of house1

 

 

 

 

 

Copy of house2

HPIM3008

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CONTACT US:
General Roofing Systems Canada (GRS)
24 Hour Emergency Roof Repair: Call +1.877.497.3528 toll-free.

info@grscanadainc.com.

Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler, Winnipeg, Toronto and points between. British Columbia. Alberta. Saskatchewan. Manitoba. Ontario.

Chimney Roof Leak Repair

General Roofing Systems Canada provides roof repairs throughout Canada. Roof Repairs are completed in the following cities; Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler, Winnipeg, Toronto and points between. British Columbia. Alberta. Saskatchewan. Manitoba. Ontario. Roofing,

Roof Repair Field Report
Date: July 23, 2011
Location: Calgary, Alberta
Roof Type: Shingles, Sloped, Residential
Problem: Chimney Leaking from Roof Top

 Roof Repair – Technician Report “How to Repair Roof Leak from Chimney”

A client of GRS was experiencing a leak in there roof and requested a full repair. Upon observing the roof and the chimney, our technician determined that the cause of the leak was isolated to the chimney area.

Our technicians replaced the chimney back pan that another company had serviced over a year ago. Despite having been serviced not long ago, the client was still experiencing leaks.

For this particular roof we were able to complete the following repairs: remove shingles from the area around the chimney, remove the siding from the chimney, remove the old metal roof back-pan at the back of the chimney, install a premium roof underlay (ice & water shield) on both sides if the chimney onto the top step flash and on the front – running the ice and water roof underlay up the chimney approx 8″. Installed the new chimney back pan, replaced shingles and siding.

Roof Repair Pictures “How to Repair Roof Leak from Chimney”

How to Repair Roof
Damaged chimney
Roof Repair How to
Roof Underlay installed around chimney area.
Roof Repair Roof Leak
Metal Flashing – Chimney Backpan installed after underlay.
Roof Repair, Chminey Leak
Roof Underlay (Premium Ice and Water” to back of Chimney
Roof Shingle Chimney Repair
Ready for siding to be re-installed on chimney after
Roofing Repairs, Chimney Leaks
Roof Repair Completed, Chimney area no longer leaks.


ROOF REPLACEMENT / ROOF REPAIR – HOW TO SHINGLE A ROOF
https://www.grscanadainc.com/Pitched_Roofing.html https://www.grscanadainc.com/Roof_Replacement_Home_Guide.html

https://www.grscanadainc.com/Roofing_Installation_Method.html https://www.grscanadainc.com/Roof_Shingle_Comparison.html

Other GRS Roof Repair and Roof Replacement Links and Documents

Roof Repair Page : https://www.grscanadainc.com/Roof_Repairs.html

Choosing a Roofing Contractor for your Roof Repair or Replacement https://www.grscanadainc.com/Choose_Roofing_Contractor.html


What Makes our Roof Replacement Shingle Installers Different – Lifetime Workmanship Guarantee https://www.grscanadainc.com/Roofing_Installers.html

 

Until next time,

The Team at GRS

CONTACT US:
General Roofing Systems Canada (GRS)
24 Hour Emergency Roof Repair: Call +1.877.497.3528 toll-free.

info@grscanadainc.com

Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Canmore, Lethbridge, Medicine Hat, Vancouver, Whistler, Cranbrook, Saskatoon, Regina, Winnipeg, Toronto and all points between. British Columbia, Alberta, Saskatchewan, Manitoba, Ontario.


Problems with SBS Flat Roof Installation

From our Calgary branch comes a report detailing problems that can arise from a poor SBS roof installation. Our roofing services are available in Toronto, Calgary, Red Deer, Edmonton, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Kelowna, Vancouver, Whistler and points between.

 

Problems with Repair 1
SBS Modified Torch on Roof / Residential / Many Problems with Installation of Roof

Here’s a report from the field today in which one of our flat roofers in Calgary, AB had run into classic torch on (SBS Modified Bitumen) flat roof installation problems. Of course, for the homeowner that has a flat roof on their home that is paying the cost for improper installation practices, this is not a positive occasion. Nonetheless, the leaks on their flat roof will now cease and the homeowners will know that their flat roof repair is completed is in good shape to serve them well in to the future – it could have been worse!

Here’s the roof repair report;

“When I arrived I spoke to both the customer and his wife about the problems they were having with the roof leaking. I walked around the perimeter of the house and they had showed me the places the moisture was coming in to their home. The roof is a SBS roof – modified torch on. I found several problems; almost all of the roof membrane seams had no bleed out, I had bent down to check and observed cap sheet was torched down past the salvage edge between 1/2 and 1 1/2 inches, and the seam is sitting on the granules instead of torched down to the salvage edge. Where I pulled up on the seam or used a trowel I could lift it up. Also any corner of the sheet I wanted to I could pull up as well. The real kicker is the perimeter edge around the whole roof was completed wrong – the people that did the roof replacement did not prime the perimeter flashing when torching to it so it does not stick to the metal at all. Also I found the capping membrane was not buttered in at the metal so there is no termination point at the roof metal, the roofing installers didn’t granulate it either because it wasn’t torched properly. The homeowner had put some sort of water proofing gum or mastic around the perimeter of the roof and has stopped whatever problems they would have had earlier, but over time (no UV protection i.e. granules) the roof is starting to crack and the roof is failing and leaking – leaks from the improperly torched roof. I had observed in one location on the roof where the SBS meets the metal at a lifted corner – I pulled it up and saw that it was a definite leak spot so I temporarily repaired with mastic and granules. The chimney and vent stack should be re-caulked as well. The home owners were very happy I was there to figure out their problems with the roof and to explain to them how and why they are having roof leaks that require immediate repair. I also told them the office will be in contact with them with reports, pics, quotes and costs for permanent repairs to the roof. ”

Pictures taken at Roof Repair site:

 

Problems with Repair 2

Problems with Repair 3

Problems with Repair 4

 

 

Until next time,
The Roofers at GRS

 

CONTACT US:
General Roofing Systems Canada (GRS)
24 Hour Emergency Roof Repair: Call +1.877.497.3528 toll-free.

info@grscanadainc.com

Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler, Winnipeg, Toronto and points between. British Columbia. Alberta. Saskatchewan. Manitoba. Ontario.