IKO Shingle Reviews

General Roofing Systems Canada installs IKO Shingles throughout Canada. IKO Shingle Installations 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.

Service. An advantage that GRS has in Western Canada for shingle installations are the markets we service. In Calgary, Edmonton, Vancouver, and Regina, IKO shingles remain well stocked and distribution is highly efficient. This is a key value for us in servicing our customers.

Due to the competent distribution, local support, and the exclusive IKO 15 Year ironclad portion of the Warranty Coverage that’s offered with the IKO Shingles, our crews would rate these shingles with a moderately high rating.

Quality. With respect to the quality of IKO shingles, the IKO line has a moderately high rating. Their line also exhibits a high level of diversity across specific use cases. Some examples are: High Wind Rated Shingles, Shake Looking Shingles, Luxury Shingles, Algae Resistant Shingles, Energy Efficient Shingles, Low Slope Shingles.

Colors/Profiles/Textures. Most IKO shingles are 100_0710available in a variety of colours. This happens to be a large selling feature with this brand. IKO shingles come in a neat and clean wrapper that is a result of the brand’s consistency with their manufacturing process. This is an important feature for this type of product as shingles need to be installed properly with the correct sizing. Should a shingle be misshapen due to a packaging error, this would affect the overall quality  of function for the shingle itself.

Shingle size consistency becomes really important if a DIY  Installation is being completed. You do not want to learn or attempt to do a shingle project by yourself with shingles that don’t fit together properly.

The textures of the  shingles, or the “Shake Look”, may or may not not suit a high end shingle purchaser. As soon as you get into the Luxury Shingles or shingles that cost the same as tile, then we would advise you to choose an alternative type. The top end of the shingle prices  becomes more of a process of comparisons amongst the selections and ultimately choosing what you prefer.

Here are our reviews broken down by specific IKO offerings. You can click the subheadings to open a new window for each product. Warranty coverage may also be found by following these links.

Marathon Ultra AR 
Our crews regularly use this type as it is an economical 3 tab shingle that installs well and holds up well to the elements. Installation of 3 tab shingles take more skill in some respect. If you attempt to do this on your own, please search our blog for shingle installation guides.

IKO Cambridge shingles are another standard type for our installers. They are consistent with being one of the top performers in their class. The IKO Cambridge shingle is a mid to mid-high grade shingle that is perfect for standard installations. They are readily available and  available in a wide variety of colors. Cambridge shingles are made of  laminate, they are considered to be a designer shingle, and are covered under the IKO Limited lifetime warranty.

Royal Estate
We install IKO Royal Estate Shingles typically only on estate homes. The Royal Estate shingle is an excellent looking laminate shingle that has a traditional estate look. The Royal Estate shingle stacks up to any high end shingle offering on the market with the same slate look for a fraction of the price.

Grandeur (Discontinued)
IKO Grandeur Shingles are one IKO’s SBS Modified high quality shingle selection. This selection is considered to be one of the best due to  The technology used for the asphalt. If you need to install shingles in cold weather , the IKO Grandeur Shingle would be a wise choice on account of it easy installations despite mother natures elements. The only down-sides to theGrandeur IKO Shingles is the high cost and limited color selection, otherwise they are a great shingles and considered one of the best on the market in BC, Alberta and  Saskatchewan for 2011.

The IKO Armourshake Shingle is often over-looked by homeowners. However we really enjoy installing this particular type of  shingle. It is a high end shingle selection from IKO that stands up well against the competition. It has an original design that is often a high interest point with our customers as it adds a unique and elegant finish to your roof.

Now we would like to advise home owners to be aware of selecting high end shingles, as they are often unaware that they contain designs. So when you are completing your roofing project and have selected this particular shingle , you will need to take into account the design for the overall finished look. our specialists at GRS will  always suggest home owners to go with a rep and view different roof lines to get a better sense for the over all designs that are available.

Overall the IKO Armourshake is a great choice if you are aiming for a higher end shingle that has more of a textured pattern to it. the shingles themselves are more costly yet offer a great selection of colors.

Until next time,

The Team at GRS

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.

Owens Corning Shingles Review

General Roofing Systems Canada installs Owens Corning shingles throughout Canada. Owens Corning shingles installed in Toronto, Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Kelowna, Vancouver, Whistler, and points between.

Owens Corning Shingle Main Web Page

Owens Corning Shingles 2011 – Our Review in General

Owens Corning Shingles, by default, are a substantial and predictable manufacturer of shingles – Owens Corning is obviously a substantial company. However, in Canada, at least in Western Canada, Owens Corning hasn’t been represented until now, in a way that say IKO or BP shingles have. IKO has significant distribution roots in Western Canada being they are originally from the Calgary, AB area – so our confidence in a predictable representation in the IKO shingle is “very high”, and BP Shingles have been well represented through stores like Home Depot and traditional roofing suppliers for some time in Western Canada.

Owens Corning Shingles now have significant representation in Western Canada as of 2011, in that Lowes has them stocked on its shelves. Lowes stores have popped up all over Western Canada. This increases our comfort level with shingle style and colour availability, and warranty/service support locally in Western Canada.

Owens Corning Shingles have always performed well and are a predictable shingle product. In the same way that we would review the performance, quality, and choice of shingles in our IKO Shingle Reviews on this blog…. we encourage homeowners with specialized or specific requirements from their shingles to look at alternatives in the market also. The Owens lineup is wide and represents designer, luxury and algae resistant requirements, but specific to those and other particular needs we always encourage homeowners to look at alternatives to be sure the right choice of shingle is made. For example, if you are re-roofing a shake roof (be it cedar shake or a pine shake roof) and you are looking for a really nice looking shake shingle that is specific to your “preference” to replace your shake roof, then you want to look at the alternative shingles available in the higher price range to be sure your preference is met – luxury or specialty shingles, especially the true shake looking shingles with the right profiles, are a significant expense.

In summary, Owens Corning Shingles are a solid choice for homeowners that require a modest, mid, or mid-high shingle for their home. The higher end more costly shingles meet more scrutiny in the marketplace and choice of shingle becomes more specific to personal preference. Malarkey, GAF, etc. have high end offerings that should be considered as well. And now that stores like Lowes are carrying the Owens Corning Shingles in Western Canada, the representation, supply, types, and colors of shingles readily available will be predictable for homeowners.

Our Review of Owens Corning Berkshire Shingles

The Berkshire Shingle line are a high end shingle product; classic, elegant and showing great street appeal. This would be a competitive shingle offering to IKO’s Royal Estate Shingle that became available in 2011. Colour choice with shingles is limited, which is common at this level of quality. I believe there are five colours currently available. Owens Corning has a 10 Year “Tru Protection” period on their shingles (which would be similar to the 15 Year no grief protection IKO Shingles carry), and the Berkshire shingle has a Limited Lifetime Warranty coverage.

Our Review of Owens Corning Woodmoor Shingle 

The Owens Corning Woodmoor Shingle Collection is for the shake to asphalt conversion market. The Woodmoor Shingle would be a similar shingle offering to the IKO Armourshake, the Certainteed Presidential TL, and others from shingle manufacturers like GAF and Malarkey.

Many of our clients in Alberta, in areas like Calgary and Edmonton, have a real shingle re-roof dilemma if they are re-roofing a Pine Shake roof. Short story is that not all Pine Shake roofs in Alberta performed as represented. The challenge these homeowners face is replacing a Pine Shake roof that has a thick profile and texture and getting that same look in an asphalt shingle. When they price out Cedar Shake costs or Pine Shake Costs quite often they look to this category of Shake Look-Alike Shingles. Then the price of the high profile shake looking shingles can become price prohibitive. We encourage homeowners in this category of shingle shopping to consider all options.

In high wind areas such as the open prairies it is also nice to consider a heavier shingle like the Shake Looking Shingles, and in areas like North Vancouver, Squamish, Whistler our clients consider the Shake Shingle Look of the Owens Corning Woodmoor and similar shingle offerings to be appropriate to the surroundings and provide excellent street appeal. We have even convinced areas with Architectural Controls for the roofing material being used to re-consider some of the shingle offerings that show a great shake look. Whistler for example has a Shake consideration in the Architectural Controls as does Fairmont, BC where we recently completed a Shake to Shake Looking Shingle Conversion in one of these areas.

Our Review of the Owens Corning WeatherGuard Shingle

The Owens Corning WeatherGuard Shingle is a true high performance shingle. Impact resistant (our clients in southern and central Alberta get a hail beating every year), HIGH WIND RATING IS 130 MPH, and we have many homeowners that constantly struggle with high wind areas and blow offs, etc. Coming home after a vacation to find your shingles blown off and a major leak and moisture in your home really is not fun. The Owens Corning WeatherGuard Shingle is one of the best in its class – hand down. This shingle is available in lots of colours, has great texture, it’s a good looking shingle, and it has a moderate price point.

Our Review of the Owens Corning Duration Shingles

The Duration Shingles from Owens Corning would be a similar offering to the IKO Cambridge Shingles, BP Harmony Shingles, etc. It is the standard laminate shingle offering in the mid range that most homeowners purchase. The price of the Owens Corning Duration shingles is competitive, the performance is competitive, and the shingle profile and texture Owens Corning Duration is a good looking laminate shingle. A great shingle product for the average homeowner in Western Canada.

Owens Corning Shingles – Oakridge Shingles

The Oakridge line of Owens Corning Shingles is a laminate similar to the Duration Shingles above but the entry step up from the 3 Tab Shingle offerings below.

Owens Corning Supreme Shingles

The Supreme Shingle offering from Owens Corning is the traditional 3 tab shingle. There are many colors available and they are inexpensive. The perform as well as any other offering on the market for 3 Tab shingles. Our only word of advice as it applies to a 3 Tab Shingle, be sure to know what you are doing before you start shingling. Learning how to shingle a 3 Tab shingle is different than the Laminate Shingle offerings above.

Until Next Time,

The Team at GRS

General Roofing Systems Canada (GRS)

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


British Columbia | Alberta | Saskatchewan | Manitoba | Ontario


Roof Shingle Installations – Storm Planning

General Roofing Systems Canada is an Expert Shingle Roof Installation Contractor Serving Shingle Roofing  Throughout Canada. We install shingles in Toronto, Calgary, Red Deer, Edmonton, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Kelowna, Vancouver, Whistler, and points between.

Below is a shingle installation and purchasing guide for storm nailing shingles, high wind rated shingles, impact resistant shingles, roofing underlayments and installations for shingle blow-offs, shingle installation placement for storm planning, and caulking shingles (tabbing) for high wind shingle applications.

High wind shingle roofing is different than normal shingle installations. Most installers do not plan for high winds, as most roofing installations are just fine without specific planning. GRS installs every roof assuming high winds and rainstorms (as well as ice, snow, water, ice damming, etc.).

The first consideration is the roof underlayment you use and how you install it. To summarize, roofing underlayment must wrap the complete roof deck. It must also run up all verticals and wrap all roof penetrations. Ice & Water peel and stick membrane has to be installed at the eave edge and in valleys in and around roof openings. Tar paper does not withstand storms, so synthetic roof underlayment should be used instead for the deck field area.

The Best Roof Shingles for High Winds, Hail, Ice Damming, and Rain Storms

IKO Armourshake is a fantastic shingle for high wind areas. It is heavy and has an out of the box wind warrant of up to 177 km/h. IKO also offers an extended warranty option of up to 210 km/h. Armourshake is so strong it has a UL 2218 Class 4 Impact Rating! It looks great, and our technicians say the system installs well. While our clients also remark on its street appeal, the only complaint that they have had with the Armourshake is the pattern of roof when it is installed isn’t as random as some like, while others like a more uniform pattern.

Another great shingle made for high wins are the Malarkey Legacy Shingles. They have a wind warranty almost identical to the IKO ones, as well as a Class 4 Impact Rating. The main difference between the two is that IKO maintains a 15 year “no grief” type warranty, while Malarkey’s is 10 years. All the limited lifetime warranties that manufacturers are offering are complicated. From our perspective, the more unconditional complete replacement front-end warranties are the most important.

Some other shingle systems we recommend include the Certainteed Presidential TL and the GAF Grand Canyon.

The Best Caulking for Shingle Installations

Karnak is by far one of the better caulking materials roofers can use. It is rubber-reinforced asphalt and doesn’t break down like typically black jack-roofing tar caulking.

For high wind application, tabbing is required under each shingle. Three to four dabs of caulking to the underside of each shingle will assist with high wind shingle lift tolerance.

In terms of technique, it is necessary to caulk valley flashing metal prior to installing shingles in the valley. This entails a consistent bead of caulk from top to bottom of each side about 2 in. in from the chalked in. Next, caulk the underside of roof penetrations such as roof vents, goosenecks, etc. Caulking the chimney backpan and skylight backpan prior to the shingles being installed will help storm planning, especially ice and water backups & leaks.

Finally, caulk the first row of starters, as well as all of the shingle capping.

Storm Nailing Shingles (Shingle Fastener Installation for High Winds)

GRS storm nails every roof and follows almost every precaution for high wind planning. We use six nails per shingle instead of four. The nails must be as low as possible and be in the double laminate strip or on the shingle nailing line (depending on the technology). A nail that does not hit the double laminate portion, if there is one, is a nail that has no value. We have our shingle installers storm nail for peace of mind. We don’t make a profit returning to fix our shingle installations.

Also, the nails (or fasteners) on the outside – so the first and the sixth nail fastened – must be within one inch of the end of the shingles. We are critically “OCD” when inspecting our shingle roof installation on this point. The nails on either end are critical.

The nails or fasteners must lay flat and be driven right in and flush with the shingle. A fastener that isn’t straight is a deficiency and won’t help in high winds. The nail head will also eventually break through the next shingle installed, which is obviously no good.

Our exclusive specification calls for the removal of every nail from the roof deck prior to installation, because simply hammering down the hold nails of the new shingles just gives the new fasteners a reason not go to straight in. Not to mention the fact that any nails simply hammered down can work their way up during installation and cause all manner of issues with roof water tightness.

High Winds and the Laminate Sealing Strip on Shingles

Do not install shingles in cold weather if there is any opportunity for high winds in the area. The weather must be warm, and the sun strong enough, to activate the sealing strip on laminate shingles. The sealing strip on laminate shingles is definitely a lifesaver when it comes to high winds and whether or not your shingles blow off.

The Placement of Shingles for High Winds

The GRS specification for shingle installation in high winds (AKA every roof for us) calls for the strip on double laminated shingles to be lowered from 1/16 to 1/8 of an inch. No shingle manufacturer we know of mandates this and many shingle professionals will argue its merits, but we see it as simple wind dynamic engineered as works (which is likely one of the many reasons we are installing for engineers, architects, and designers all the time). Getting back to the point, installing shingles lower causes more shingle material to be installed and it is a little more costly as a result. However, it increases shingle wind resistance. Try it and you will see.

Essentially, the premise is that more of the shingle below is covered (less expose = less opportunity for shingle wind lift) – lift resistance is important. More than that, the double laminate strip almost acts as a natural “break point” for the shingles to snap in high winds. To test this, install your laminate shingles as usual, and before the shingles seal in the heat slowly lift it up until it snaps. It will always snap at the double laminate strip. Lowering your shingle rows 1/8 of an inch gets the shingle above to hold down the shingle below before the break point at the double laminate. You’ll have to try it to understand. Anyways, this practice has lowered our shingle blow-off issues at least by 10 to 1, so we use this method for every roof.

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Until Next Time,

The Team at GRS

General Roofing Systems Canada (GRS)

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


British Columbia | Alberta | Saskatchewan | Manitoba | Ontario