General Roofing Systems Canada is a Canadian Based Roofing Contractor Serving Roof Coatings in Toronto, Calgary, Red Deer, Edmonton, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Kelowna, Vancouver, Whistler, and Points Between.
Photos are starting to come in of an Industrial Metal Roof Coating project we have underway in Leduc, Alberta.
It wasn’t long ago that if someone wanted a Metal Roof Coating that would perform and last, we would have to shy away from engaging in a contract with a client. Quite frankly, the roof coating technology wasn’t what it is now. Modern day technology allows roofing contractors like us to literally coat a roof with liquid rubber and when the roof coating dries, it becomes a monolithic rubber membrane. It carries a 10 year warranty and is bullet proof.
This industrial building in Leduc had us start the metal roof coating process late in 2010. Then, winter set in so our roof coating crew couldn’t continue until this spring. The rubber coating is perfect, even after having been coated and installed on this industrial metal roof right when winter set in. When we came back this spring it was perfectly intact, it adheres to the metal roof perfectly, it stretches and doesn’t crack, and it does not break down with UV. Our review of the new elastomeric rubber roof coatings is that they work, they are cost sensible, and are an excellent way to gain years on your metal roof repair and maintenance and allows metal roof owners to extend replacement for years if not decades into the future.
As this metal roof coating project continues in Leduc, we will publish photos and reviews, and next week we have other roof coatings occurring in Lloydminster, Alberta and other parts of Alberta on Industrial Metal Roofs that we will document for potential users of the products.
Our Website has a Roof Coating Section for Metal Roofing link here:
General Roofing Systems Canada provides Shingle repairs throughout Canada. Shingle 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
GRS Review of the Malarkey Legacy Shingle
The roofing crews at GRS are required to provide our office with complete documentation and comments regarding the installation of every roof. The documentation includes photos of the job site prior, during and at the completion of the shingles process. Amongst the photos there must be written reports of job progress, safety reports and various other documentation.
For assignments that have been specified as a Malarkey Legacy Shingle Installation, we find the comments from our crews to be consistent. Our roofers comment that with the Malarkey Legacy Shingle there is a general ease of installation, excellent quality of shingle line up and a lengthy life expectancy. The Malarkey Legacy Laminate shingle has become a favorite product for our crews and in every case they would recommend the Legacy shingle to homeowners.
1956: Malarkey Roofing Company was started by Herbert Malarkey and is-still privately owned 1956: Established production of saturated felt. 1960: Shingle production begins. 1975: Installed the first random lay fiberglass mat machines in Western North America. 1976: Introduced fiberglass shingles 1976: Introduced the fiberglass Built-Up Roofing (BUR) system 1976: Started research into using Styrene Butadiene Styrene (SBS) rubber modified polymers in roofing products 1977: Converted the shingle product line to metric and introduced the first metric shingle in North America 1977: Introduced the first SBS modified base sheet in North America 1981: Awarded the first Class ‘A’ fire rating for any SBS Built-Up Roofing system over wood decking 1984: Partnered with the City of Portland and installed a methane recovery pipeline, which reduces its natural gas consumption by over 80 percent. 1985: Received the State of Oregon’s Governor’s Award for Outstanding Achievements in Energy Conservation for its methane recovery project 1986: Introduced the first SBS modified roofing shingle, named the Alaskan™, which remains a benchmark for shingle quality in North America 1987: Introduced Styrene Ethylene Butadiene Styrene (SEBS) mopping asphalt, which supplements the many advantages of SBS with the improved thermal performance and resistance to UV degradation 1992: Continued research into inorganic fiber mats; they submitted an application for patent on fire-resistant mineral fiber mats for multiple industries 1993: Converted remaining product lines to metric 1993: Malarkey received the first approval from Dade County in Florida for 110-mph shingle 1993: Became the first 3M Algae Block™ approved manufacturer 1994: Produced the first 3M Algae Block shingle, the Hurricane™ 1997: Introduced the first SBS modified laminate shingle, the Legacy® 2001: Cbtained a patent for The Zone , which tapers and widens the laminate shingle nailing strip to 1 3/4 inches (from 3/8 to 1/2) 2003: Became the first manufacturer to receive 3M Scotchgard designation for algae resistant shingles 2003: Opened new production facility in Southgate, California 2006: Received the Western States Roofing Association’s Outstanding Service Award for The Zone 2009: Released Ecoasis, listed with the Cool Roof Rating Council. 2011: Expanded from the Pacific Northwest and California with a manufacturing plant in Oklahoma City, Oklahoma.
General Roofing Systems Canada (GRS) is a Comprehensive Building Envelope and Roofing Contractor serving Western Canada. Including such areas as: Calgary, Red Deer, Edmonton, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Kelowna, Vancouver, Whistler, and various points between.
General Roofing Systems Canada (GRS)
24 Hour Emergency Roof Repair: Call +1.877.497.3528 toll-free.
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.
General Roofing Systems Canada Applies Liquid Rubber throughOut Canada. Liquid Rubber Coatings in Toronto, Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler, and points between.
Liquid rubber is a water-based, VOC, and solvent-free waterproofing liquid rubber product that is cold applied using an airless spray system, roller, or brush. Liquid rubber coatings cure to provide a seamless, fully adhered flexible membrane which prevents water ingress, ultraviolet light, and harmful chemicals.
These products are both worker and environmentally safe and are available for commercial, industrial, and residential markets for rubber roof and concrete structure protection.
This category of products can be spray to metal roofing, flat roofing including tar and gravel, BUR, SBS modified, and a number of other flat roof scenarios. Liquid rubber can also be used below grade for concrete foundation waterproofing and a number of concrete structural waterproofing scenarios.
Liquid rubber addresses the major industrial problems of corrosion in a very efficient and high performance manner. Used alone or as part of a multilayered coating and lining system, liquid rubber protects metal in scenarios from salt water to acids with unparalleled success.
In terms of industrial usage, liquid rubber coatings provide corrosion protection in mining, marine vessels, offshore drilling sites, and metal warehouse roofing.
Our products are formulated to be safe to apply, even in confined spaces such as storage and process tanks. Using emulsion based formulations, liquid rubber’s corrosion protection coatings and liners are environmentally friendly and safe for the workers.
Liquid rubber provides facility owners with turnkey solutions to specific application requirements. These solutions begin by incorporating analysis and specification through to the completed application of waterproofing and corrosion protection systems based on our range of elastomeric and polymer modified acrylic and bitumen based coatings, liners, and membranes.
General Roofing Systems Canada removes snow and ice throughout Canada. Flat Roof Repair; 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.
CAUTION: DO NOT REMOVE SNOW FROM THE ROOF YOURSELF!
GRS Canada, Inc. has removed snow and ice from hundreds of residential, commercial, and industrial rooftops throughout Alberta, BC, and Saskatchewan.
We have also consulted facility managers at commercial and industrial facilities all over the world on proper snow removal protocols, techniques, and adherence to structural engineering. Live loads on rooftops are important to consider, proer safety for the workers on a roof is critical, and knowing how to remove snow from a roof may just save the lives of the workers and occupants in the building.
Our article on rooftop safety and roof snow removal was spurred by the roof collapse in Anchorage, Alaska and the subsequent news reports talking about “roof snow removal parties”. Our concern is that folks think it is OK to remove snow from roofs without using professional providers.
MUNICIPALITY OF ANCHORAGE ISSUES PRESS RELEASE MARCH 2, 2012
“ANCHORAGE– In the last few weeks several roofs in Anchorage have failed due to stress from snow. The buildings involved were generally older (pre-1980) with flat roofs. Several, but not all, failed where snow had drifted. Newly fallen snow is not very dense. However, over the course of the winter accumulated snow on roofs becomes denser. Per current code the design snow load in Anchorage is 40 pounds per square foot (psf), which is equivalent to approximately two feet of dense snow. A roof designed to current code should not have problems until the load is significantly higher than 40 psf. It is recommended that building owners and managers monitor the snow loads on their roofs. Of special concern are older buildings with flat roofs, and those with areas of snow drifting, such as at parapets and lower roofs. Special attention should also be paid to long overhangs where snow blankets are draping over the roof edge. If one hears creaking in the roof, observes excess deflection in trusses or beams, or sees bowing of columns, immediate investigation by a structural engineer is warranted. Conditions on roofs may worsen as additional snow falls in March and April, building owners should consider preventative roof shoveling. Shoveling a roof is inherently dangerous, so special precautions should be taken. The intent is to lighten the roof load by removing a significant portion of the snow, not necessarily all of it. Trying to remove all of the snow down to the roofing could increase the danger of a shoveler sliding off the roof as well as causing damage to the roofing materials.”
DO NOT REMOVE THE SNOW FROM YOUR ROOF YOURSELF – ROOFS COLLAPSE.
Firefighters responded to a callers reporting structural collapse at the South Anchorage church Friday March 2, 2012. Firefighters initially were called with reports of a fire at the Abbott Loop Community Church at 2626 Abbott Rd. shortly after 6 p.m. Callers reported smoke, including one caller reporting an explosion.
ROOF SNOW REMOVAL PROTOCOLS AND CONSIDERATIONS
How much snow is too much?
Live loads are an important consideration when assessing rooftop snow and possible removal. You need to know how much snow and ice rooftaps can hold safely, what the effects are of ice buildup on roof systems, and how to properly remove the snow so that the building does not become structurally unsound and collapse while you are removing the snow.
Generally speaking – and depending on where you live – most flat roof systems are constructed to safely hold a maximum of 15 to 20 cm or ice or 35 to 40 cm of hard pack snow (70 to 80 cm of fresh snow).
There are many other considerations such as the engineering and age of teh building, or how often the roof can withstand the snow loads.
In Alberta, building codes (as of 2006) require roofs to withstand about 40 lb. of snow per square foot once every 50 years. In this fashion, one can predicate how much their building can withstand every x years.
If the snow load on your roof is getting close to the calculations above, you need to have the snow removed from your roof.
Time is also important when considering roof load capacity – this is called the fatigue factor.
Roof collapse can occur on roof systems that have half or less of the live load described above.
Measuring Roof Snow Loads
A “safe” amount of snow or ice on a roof is none at all. Removing the snow will mitigate ice damming, which will keep the roof membrane in a good condition. Regular removal will also keep the roof drains working properly.
When the ice and snow starts melting in the spring, be sure a knowledgeable roofing contractor or a trained maintenance person is regularly checking the roof drains or scuppers to ensure that the water is flowing down the drains, as opposed to filling your flat roof up like a pond.
If you are still convinced that you can remove the snow and ice from the roof yourself, please refer to our blog article here. We provide safety considerations as well as a “how-to” guide.
IN THE PRESS…
From the Edmonton Sun Newspaper:
“General Roofing Systems advises that the snow isn’t as much of the problem as is the ice build-up underneath. Snow melts, it freezes and then is covered by a new layer of snow. The process repeats until the ice sheet becomes too heavy for the roof to bear. Trouble may not show up until the spring thaw when water that ended up freezing in the attic melts and comes through the ceiling. Then, of course there is the possibility that all that weight will cause structural failure.”
General Roofing Systems Canada Repairs flat roofs throughout Canada. Flat Roof Repair; 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.
Below you will find the pros and cons of each type of flat roofing system we offer written by our Alberta roofing repair crew. A link has also been provided below to our main website describing each.
While moderately low in price, this is largely based only on individual perceptions. As far as material efficacy goes, spray foam is seamless and light. However, in Canadian weather, it is subject to cracking due to extreme hot/cold shifts, and a failure can result in a complete re-roofing being required. As well, maintenance mandates top-coating, which contributes to expenses – nullifying perceptions about spray foam being a low cost solution.
Single-ply Systems (EPDM/PVC/TPO)
While these have been excellent systems in terms of performance and a lower initial price, they do not have the longevity of 4-ply tar and gravel or 4-ply liquid rubber. As well, these systems are vulnerable to tearing over time. The installation process also entails using mechanical fasteners, which provides another damage vector with respect to water and strong weather conditions.
Tar and Gravel
A seamless and versatile system, which also has a long life if maintained properly. However, the installation process can be quite messy. As far as maintenance goes, leaks can be difficult to find. As a result, maintenance costs are higher than single-ply systems and liquid rubber application. Maintenance or repair with tar and gravel systems often entails a vacuuming as well if damaged sites are difficult to locate.
This system is lighter than 4-ply and has a broad range of application methods. However, torching is not seamless and the life cycle is shorter than 4-ply systems. A fire watch is also required during installation, which contributes to a higher price point.
Seamless, UV stable, and elastic, this is a system which we have had a lot of success with in the Canadian climate. The 1000% expansion rate provides a “cushion” for extreme weather changes, which makes it resilient to tearing and leaks. The system is also multi-purpose, having applications in gutters, too. However, the price point is initially higher. In terms of total life cycle cost, it is similar to all other systems.
We usually recommend single-ply systems and liquid rubber to our clients. Single-ply systems are more economical on the front-end and perform well. Liquid rubber also has the least chance of failure, as it is the most predictable and is 4-ply. Also, it is the system most suited to Canadian weather due to its elasticity.
General Roofing Systems Canada Repairs metal roofs throughout Canada. Metal Roof Repair; 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.
Repairs to metal roofs are quite often due to metal seams expanding or contracting, screw holes that have expanded over time, or roof penetrations that are improperly flashed.
The first step is to assess the repairs from a repair or remediation perspective. Some high end caulking, underlayment, and flashing knowledge is required. We use a journeyman that can assess the conduct the repairs to this end.
Once the repairs are done, you may have to consider one of the many options in metal roof coatings if your roof is low slope or irreparable.
Flat Metal Roofs – Low Slope Roofing Considerations
A roof coating or restoration will likely be required in addition to the repairs, especially if you have a flat or low slope system. We often service these types in commercial and industrial facilities.
Flat roofing is more difficult as “waterproofing” becomes key. A high slope roof can be looked at as a “watershed”, so are a little easier in terms of this type of maintenance.
There are many different options for metal roof restorations/roof coatings. A proper metal roof restoration, with the right people doing the application coupled with the right materials, should get you (conservatively) about ten years or more out of your metal roofing system. As well, a high quality coating will cost you about half the price of a brand new metal roof. In the meantime, you will have another decade free to plan for your roof replacement when it has reached end of life.
The reason a roof coating or restoration is typically required when you have run into metal roof issues especially flat ones) is that the issues are most often installation or design issues that cannot be permanently fixed. Any fix we do to mitigate a roof leakage, for example, will most often be temporary repairs.
For more information on roof coatings, flat roofing, industrial and commercial coatings, and metal roof systems, visit our website for roof repair and re-roofing information. At the bottom of the main page you will find links that discuss various issues, repairs, systems, hiring contractors, and related topics. You can also search this blog by keyword using the built-in search function.
General Roofing Systems Canada Repairs metal Roofs throughout Canada. Metal Roof Repair; 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.
One of the most common calls that come into our switchboard are those with reference to metal roofs.
Frequently Asked Questions:
From prospective buyers
How much are metal roofs? For the most part, people inherently know they are higher in price than a shingle roof.
How long does a metal roof last? Most folks know a metal roof is supposed to last longer than shingles.
What colours/profiles are available? Most often our clients have seen, at one point or another, a metal roof that really stood out which they really liked, and they have also seen others they did not like the look of at all.
From metal roof owners that have a leaky roof
Why does my metal roof leak?
How can I avoid leaks?
Are the seams leaking?
I can’t figure out if the leaks are coming from the screws.
In fact, we had a call this morning in which the caller, a golf course facility manager in Alberta, said he had changed out every screw on the roof (exposed fastening system) and caulked every screw head and seam and he still had two leaks he just could not pin down.
From metal roof owners frustrated by their leaky roof
I’m done with this roof, I’ve tried everything to stop the leaks. What other types of roofs are there?
I’m done trying to seal or caulk this roof, can we look at roof coating options?
The truth is, a metal roof is like any other roof. Metal roofing systems have benefits and they have inherent problems.
A metal roof can be the best roof you will ever own. It can be installed so that it does not leak, as well as look great and last almost a lifetime.
In saying that, we endeavour below to address the most important highlights of purchasing considerations, installation procedures, as well as leak repairs, coatings, and restorations.
When purchasing a new metal roof or when considering a roof replacement
The cost of poor worksmanship, poor metal roof design, or poor
People considering a metal roof purchase call us all the time with aesthetic and cost questions, and we cannot blame you. I know when I am searching for a new truck or my wife is looking for a new car, some of the first thoughts we have are regarding colour, style, and cost.
However, we should be thinking most in terms of what will get the job done right and what meets our needs most appropriately. Of course, budgets and pricing comes into play, but first and foremost the consideration should be: “what does it cost to do the job right?”
If a metal roof is incorrectly installed, or you have chosen a metal roofing system that has inherent problems or a low quality material was used, it will not so much matter how inexpensive it was when you consider the cost of leaks, repairs, roof coatings, and constant aggravations.
Case in point, to coat a metal roof or to do a metal roof restoration properly due to a leaking roof caused by a compromise during installation, it is about 50% to 70% of the cost of what it would have been to just install one properly the first time. Unfortunately, that is the most important thing to keep at the top of your mind when shopping for a metal roof.
The Right Questions
About the contractor
Experience with metal roofs specifically, regardless of its application, (residential, commercial, industrial) is paramount. Challenge the contractor, get references, check out their portfolio, and ask lots of questions. Unless their information is easily and publicly available, questions are your only weapon. You can find a guideline here for how to hire a roofing contractor on our main website.
The proposed metal roof system
When you are talking to roofing contractors about systems, I am not speaking of colours, cost, or the fancy names they give them [the systems]. Ask the contractor the follow questions. If the contractor can confidently carry this conversation with you, then you know you have a great chance at getting a roof that will, in fact, last near a lifetime and will have that aesthetic appeal you were looking for. A metal roof should not “oilcan”, should never leak, vent improperly, or require a full replacement after only a couple of years.
If there are exposed fasteners, what kind are they?
If there are hidden fasteners, what kind of clips are being used and where are the clips fastened?
Are the clips being fastened directly to the roof deck; and if so, is there an underlay going under or over?
Ask whether the contractor will be hand cutting and wrapping the panels at the eave and at the ridge. If not at the eave, will you see the underside white of the panel from below when standing on the ground? If not, what are the wind lift considerations?
Is the system as monolithic as possible?
Are the seams hand crimped?
Where each seam is crimped or comes together, are they using a caulking underneath, or a caulking tape? How long does it last?
Will the underlay be synthetic, or tar paper? If it’s Ice & Water, what grade?
Will the underlayment be monolithic with base sheet torching?
If the contractor tries to “assure” you there will be no negative laps on the underlayment, gauge their reaction when you ask to see the roof for yourself.
Will there be strapping, and if so will it be going on before or after the underlayment
Will the system be able to breathe?
Will the metal panels be manufactured off-site? If so, what assurance is there that they will fit?
Once you have gone through this process, and the contractor’s answers have been vetted, then pick a colour, get a competitive and fair price, and pay your chosen roofers on time for a job well done.
When repairing a metal roof or considering a metal roof coating or restoration
This is a little easier than the questions you should be asking when you are considering a new metal roof.
Repairs are quite often due to the metal seams expanding or contracting, screw holes that have been expanded over time, or roof penetrations that are not flashed in properly.
The first step is to assess repairs from a remediation perspective. Some high end caulking, underlayment like Ice & Water, and flashing knowledge is required. We use a journeyman that can assess and conduct the repairs.
Once the repairs are done, then you will most likely have to do a roof coating at some point.
There are many different options for roof restorations that we will not go into here, but essentially a proper roof restoration with the right people doing the application should get you, under a conservative estimate, about ten more years out of your system and will cost you about 50% of the price of a new metal roof.
The reason a coating or roof restoration is typically required when you have run into metal roof issues is that they are most often installation or design ones that cannot be permanently fixed. Any fix we do to mitigate a leakage, for instance, will most often be temporary repairs.
For more information on roof coatings and metal roof systems, visit our roof repair and roofing replacement website. At the bottom of the main page their are links that discuss various issues, repairs, systems, hiring contractors, etc. You can also search this blog and the documents or links to the site by typing in your search key words and that may assist you also.
Ultimately, you can pick up the phone anytime and more often than not we have very experienced roofers that will either answer your call right away or one will get back to you in short order (we do our best to have our most senior roofers answer live on the front end as much as possible). We will give you a hand with whatever questions you may have.