Industrial & Commercial Roof Waterproofing Solutions

Metal, Flat Roof or Waterproofing Problems?

General Roofing Systems Canada has been installing liquid rubber coatings on an increasing number of commercial and industrial applications lately.  It is the first time that a waterproofing product has come along that is truly predictable and highly effective. The development and use of liquid rubber coatings has solved several roofing and waterproofing related issues in both above and below grades in a very effective, predictable, and cost effective manner.

Liquid rubber coatings: liquid rubber coatings are made up of 100% solids, the coatings will not shrink as liquid rubber has superior adhesion that will bond to almost any construction material or substrate. They have elongations that exceed 350% and in some instances up to 1000% with a memory greater than 95%.

Liquid rubber is solvent free with no VOC’s and are compliant with all known environmental and OSHA requirements.  It can be used in confined spaces with-out respiratory equipment.

The coatings are resistant to thermal shock and will not crack in extreme cold, it will not slump or soften in extreme hot temperatures. Liquid rubber coatings can also be painted and are UV resistant.

Liquid coatings can be trowel , squeege , and spray applied.

Unlike urethanes, polyether-based liquid coatings and sealants will resist the damaging effects of sun (UV), rain, with both cold and hot temperature extremes.  Unlike silicones, polyether liquid rubber coatings are paintable and do not smell therefore enabling it to be used in confined spaces.

Here are just some of the commercial and industrial benefits of the liquid rubber coatings:

Metal Roofing and Flat Roofing: Liquid rubber is an excellent solution for metal and flat roofing. It is a hot rubberized asphalt mix that roofers have been installing on substrates such as concrete for decades, but what we are speaking of here is cold liquid rubber being applied. Liquid rubber is an excellent solution for flat roof restorations and metal roof problems.

The Liquid rubber coating is an excellent solution to all metal roof issues. The liquid rubbers traits help to resolve issues such as rust due to the rubbers excellent rust inhibitors. It is able to seal leaks without the roofs expansion or contractions being an issue due to the 350% – 1000% in elongation with a 95% memory. Liquid rubber has no VOC’s (100% VOC compliant) and is a true green roofing product. With a 10 year warranty extendable to 20 years on maintenance contract at 1/3 to 1/2 the cost of replacing a flat or metal roof, nothing comes close to life cycle costing of liquid rubber roofing.

Below Grade Waterproofing: Liquid rubber coatings can be used on almost any surface in any location that you may need waterproofing, including concrete. It can also be used on equipment wells, in between slab waterproofing, and other underground construction scenarios.

Pond Liners: Pond liners are typically applied with some form of rubber such as EPDM. It enables you to spray on the liquid rubber efficiently and with whatever level of thickness required. The American military sprays liquid rubber onto the containers that the troops drink from, if they use it for that then it is certainly good enough as a pond liner.

Eaves troughs – Gutters: Gutters can be coated on the inside to stop leaks.

Planter Boxes: There is nothing better than using liquid rubber to seal planter boxes. Liquid rubber waterproofing will help keep the water in the box.

Green Roofing Systems: Liquid rubber is ideal for green roofing as it is VOC free!

Plaza Decks: Plaza decks can be a difficult waterproofing scenario for facility managers due to the constant movement. Yet with the liquid rubber waterproofing it will outperform most applications. The movement of the structure no longer will be an issue with the elongation ability of the rubber.

Concrete and Asphalt Repairs: Sealing the cracks in concrete on asphalt is an ideal application for liquid rubber

Bulkhead Penetrations and Joints: Liquid rubber coatings will not shrink therefore it can be used in waterproofing bulkhead penetrations and joints.

Commercial and Industrial substrates and construction materials that liquid rubber can be applied to: ISO Insulation Board (such as flat roof ISO), Concrete, Steel, FRP, Drywall, Wood, Plywood, OSB, Asphalt, EPDM, TPO, PVC, EPS, SBS Modified Cap Sheet and SBS Base Sheet, Fiber, Board, Dens Deck, FRP (Fiber Reinforced Plastic), etc…

Liquid rubber elastomeric coating videos: 

 

liquid rubber for tar and gravel roofing repairs

A number of liquid rubber coating applications are demonstrated such as retaining walls, underground tanks, horse stables, water features, landscaping, asbestos encapsulation, below ground tanking, drainage dressing, power stations, tile adhesion, balconies, terraces, etc.

US roofing contractor applying liquid rubber to a flat roof – tar and gravel flat roof restoration process.

UK roofing contractor applying liquid rubber to metal roofing, rust, concrete, etc.

Liquid rubber coating being used to repair a tank.

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.

Roof Snow Removal Considerations

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 – Preventative Roof Maintenance Encouraged Before Winter Comes!

Fall has arrived and winter is just around the corner. This time of year is when people tend to be the most busy, with having just came back from vacation to children starting school and various other activities. With so much on the go for people, the last thing that you want to think about is the ROOF!

Yet the reality remains, this is also the busiest time for roofers, as facility managers and homeowners alike start to prepare the buildings for the harsh weather that winter brings. This is the best time to consider whether or not your roof has any current issues that need attending to.

snow and ice damming
Ice damming across a gutter system

The snow loads in Central Alberta and Northern Alberta were record setting. For many of the roof systems, if they did not fail or have issues last winter, it is almost certain they will have problems this winter.

We have  watched several commercial and industrial roofs completely fail in the Edmonton and Red Deer areas. The roofs literally buckled under the pressure from all the weight of the snow we received. Yet we believe this could have less severe had proper maintenance been taking place before the season hit.

This  winter has proven to be highly unusual. We experience such diversities in the climates all around western Canada. For example, in Vancouver our crews were busy with torrential rain, while in Saskatoon and Regina they were busy with snow falls, and in Calgary it was a constant cycle of  freeze and thaw. All this diverse weather  kept our roofing crews at complete capacity, often having to work many hours of overtime.

Some things to consider for your commercial, industrial, and residential roof maintenance prior to the next winter setting in;

Flat Roofing: Any flat roofing that took on heavy snow loads will most definitely require some attention. We highly recommend that owners heed the warnings from the previous season and at least asses the current quality of there roof, it would be best to have this assessment completed before the first snow fall. We have an annual roof repair and maintenance check list for flat roofing and the maintenance required to be completed listed on our website.


Metal Roofing: Metal roofing was hit the hardest last winter. The reason is that metal roof systems, especially commercial and industrial, had snow loads that compromised the metal roof panel seaming. In other words, the metal panels on the roof have been warped or pressed down so hard that the seams between the panels and the fasteners are compromised. The other issue we are seeing with industrial and commercial metal roofing this year is that many of the gutter systems are damaged.

The problem with metal roof systems on industrial buildings is that when the ice builds up in the gutter it will then back up and enter the building under the metal cladding. Fortunately, there are excellent solutions for metal roof issues yet most cases do require a full replacement.

Nowadays we can coat metal roofing with liquid rubbers. This is a elastomeric spray on roof coatings that will seal the metal roof seams, fasteners, and vents.

To learn more about how to solve metal roof leak problems search the topic on our blog at the top right corner. Simply type in your inquiry and our search engine will show results of the pages to help.

In addition to this, our main web site contains several pages on metal roofing, roof coatings, and roof repairs. You can find this information listed below with  the following links:

Residential Roofs: These systems did not have nearly as many structural  failures that occurred with Industrial and Commercial roofing last year. Although that is not saying that residential roofs, roof attic ventilation and condensation did not have their fair share of complications.  The reason being is that with the snow loads on roofs, the ice damming, condensation and ice backups in gutters, caused numerous problems.

As stated earlier, this winter season has been a treacherous one. Due to this fact, GRS would like to remind everyone to have an assessment completed on their roof for the next season BEFORE snow begins to fall.

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.

Roof Shake Maintenance, Repair, & Inspection

General Roofing Systems Canada provides maintenance, repair and inspection services for real wood roof shakes throughout Canada. Real wood roof shakes are installed 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.

Maintaining Your Real Wood Roof Shakes

Below this article has a listing of  links that will help assist you in a “do it yourself” shake roof cleaning and proper maintenance. We have also included options for roof repair and replacement. To experience the proper life-cycle of your roof, your real wood shake roofing require regular maintenance, inspection, and repair.

Roof Inspections

Should you experience any leaks, or see signs of splitting, curling or crumbling, it is advised to have an inspection completed. GRS provides thorough inspections that include complete documentation of the status of your roof. With our inspections you will receive accurate photos, cost estimates, and a detailed plan to maintain your roof properly. Shakes require regular upkeep in order to maintain 100% efficiency.

Even the roof flashing behind skylights, chimneys, and valleys require adequate maintenance. If not properly maintained, you may begin to see the metal rusting or the caulking around the metal roofing beginning to crust. If this continues to deteriorate, it is guaranteed that you will begin to have leaks.

Roof Repair

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The repair of shake roofs is often more extensive than shingle or metal roofs. When the time comes to do significant repairs, be sure to get a detailed roof inspection done so that you can see everything that needs to be completed on your roof in advance. GRS’s roof reports are highly detailed and show photos of all the areas that require immediate concern.

Replacement of Cedar Roofing

Cedar roof replacement (or cedar roof conversions) offer more options for re-roofing. Real wood cedar offers a traditional, warm, and aesthetically pleasing roof on your home. There is also available different roofing materials that have a cedar roof look. Shake looking roof materials include Concrete Tile, Metal, Rubber, Steel Coated Shingles, Composite Plastic Tile, and more.

For More Information on real wood shake repairs and maintenance please feel free to look through the links listed below:

Shake Roofing Replacement – a page about the various options for real wood, metal, steel, rubber, concrete tile, and more.

Re-Roofing Options for Shake Roofinga page for various alternative options with detailed descriptions of different grades of real cedar roofing.

Real Wood Roofing Shake and Shingles – a page for re-roofing your home with real wood roofing.

Re-Roofing Shake to Asphalt Shingles a page explaining flashing considerations when going from a pine or cedar shake roof to asphalt shingles

Should you have any questions in regards to your cedar roof, please feel free to contact our office and one of our members will be happy to assist you.

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.

Industrial Metal Roof Liquid Rubber Coating

General Roofing Systems Canada provides metal roof coatings throughout Canada. Roof Metal coatings in 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

New Generation of Roof Coatings

With every new product or technique there is always some skepticism to be had among both technicians and buyers alike. Yet with the new elastomeric rubber roof coatings, this has proven to be a positive experience among all who use/receive it. Our crews have been quite satisfied with the coatings that are placed down on the metal and flat roof systems.

Roof Coatings for Restoration, Repair, Maintenance

Liquid rubber elastomeric polymer roof coatings have proven to be quite efficient in the field. When metal or flat roof systems need repair, this new generation of roof coatings is something that should be considered for your roof repair or restoration process.

Roof Coating Warranty and Guarantee

Our liquid rubber systems come with a 10 year, no hassle warranty from the manufacturer. Yet GRS is able to extend this guarantee for an additional 10 years, giving owners a full 20 year warranty. In addition to this, our lifetime workmanship guarantee would also be honoured, therefore providing a full lifetime warranty for the duration you own the building.

Roof Coating – Why does a Metal or Flat Roof Coated in Rubber work so well?

Roof systems expand and contract and buildings move. The secret to the new generation of roof coatings is the coating elongation (900% or more) – they are suited to cold Canadian winters and summers. The new coatings stretch and move with the metal or flat roof systems. They are monolithic (there are no openings or seams) and they stretch. Metal roofs can be quite difficult to repair; finding the source of the leaks can prove to be quite a frustrating experience for roofers, business owners and homeowners alike.

Metal Roof Fastener Gasket (rubber around screw)
Metal Roof Fastener Gasket (rubber around screw)

Metal roof seams, fastener holes, fastener gasket, flashing, vents, etc. can all move, and expand/contract. Seams between panels become larger, fastener holes become larger over time, the rubber gaskets on the screws deteriorate over time from UV, and flashing gives way to ice dams and expansion and contraction over time. The new roof coating is able to solve this problem by providing a 100% expansion rate to all surfaces.

Cost of Roof Coatings, Roof Replacements, and Roof Repairs

The cost to temporarily repair your roof (whether it is a flat roof or metal roof) is typically around 10% of the value of the roof (average over lifetime of roof). The cost to replace your metal or flat roof is roughly between 8.00 and 20.00 per square foot. Essentially a roof coating will only cost you half of what a full replacement would. Both coating and roof replacements have the same length of warranties. And should you choose to go with a roof coating it is tax deductible as it is considered maintenance.

Below are a number of pictures of a roof coating that is currently in progress:

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Roof Coating – Industrial Roof Restoration: Alberta. Liquid Rubber to metal roof.
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Roof Coating Crew on Metal Roof.
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The white company truck was black after this roof coating job
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Roof Coating just applied to metal roof – still setting up.
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Trowel grade liquid rubber hand applied to roof vents, flashing, etc. We also use mesh and seam tape to reinforce these areas.
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After trowel grade applied to openings, field of metal roof is coated.
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Liquid rubber trowled to roof vent
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OHS Compliance – Roofers must be in proper hard hats, steel toes, shirts, etc on all sites.
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So close to completing the roof coating and here comes the rain storm.
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Screws and metal roof seams are reinforced with trowel grade liquid coating.
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This photo clearly shows the difference between the original metal roof panel and the panel to left of it that has liquid rubber applied to it.
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First coat of roof coating applied
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The Roof Coating was excellent solution around windows on this low slope metal roof.
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Liquid rubber can be sprayed, rolled, brushed, trowel applied. One advantage this coating process has is that we can apply the liquid rubber up walls to areas where ice dams commonly cause leaks on industrial roofing.
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Industrial roof coating in progress.
Roof Coating - General Roofing 5
Roof vents, screws, seams, flashing, etc reinforced prior to roof coating being applied.
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Roof Coating rolled out onto the roof.
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GRS Crew working hard! This part of the metal roof was completed right before storm rolled in.
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Metal Roof Coating almost complete.

 

 For more information on Liquid Rubber Roof Coating, Repair, and Replacements; 

Search our blog and you will see results for various articles regarding roof repairs, coatings and replacements listed. You can also find more information at our main web page: http://www.grscanadainc.com/

Request a quotation for your roofing needs GRS will send a technician to  your site or home and prepare a roof report/quotation for your review.

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.

Low Slope Shingle Conversion to Flat Roof Membrane

Re-Roofing? Converting Low Slope Shingles to Flat Roof Membrane Roofing on Your Home or Considering Converting a Flat Roof to a Pitched Roof?

General Roofing Systems Canada Re-roofs Low Slope Roofs throughout Canada. Our roofing services are available in Toronto, Calgary, Red Deer, Edmonton, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Kelowna, Vancouver, Whistler and points between.

Below you will find comments regarding various aspects of roofing conversions from our senior project manager.

One common challenge homeowners have when considering re-roofing a flat roof or a low slope roof on their home (we receive many inquiries about) are homes with a low slope pitch that currently have shingles on the roof and the homeowner is considering a conversion to a flat roof membrane when they re-roof instead of the shingles. Or, homeowners are considering converting a flat roof on their home to a pitched or sloped roof instead.

Low Slope Roofing Challenges

Low slope roofs on residential homes (in colder climates like most of Canada) can pose a significant challenge.

Vaulted Ceilings: Often these homes have vaulted or cathedral ceilings. The vault in the ceiling replaces the traditional steep pitch home attic space. The issue with this home design is that hot air from the inside of the house can more easily get to the underside of the roof sheathing. The problem with this is that the warm air causes snow on the roof to melt. Then when it cools down at night the melting snow turns in to ice and over time ice dams develop on the roof.

Attic / Roof Space Insulation: In these homes it is often the case that the insulation value is poor. Either as a result of moisture (roof leaks or condensation) or in many instances when the home was built very little insulation was placed in the roof cavity. Lack of insulation allows the hot air from in your home to get to the underside of the roof causing ice dams. It is critical to have proper insulation R values in your roof.

Ice Dams: The problem with ice dams is that they wreck roof membranes and roof shingles and cause leaks into your home. So basically what occurs is that the heat from in your home gets in to the roof assembly (sometimes the vapor barrier is non existent or faulty), gets past the vapor barrier, through a lack of insulation and heats the underside of the sheathing and ice dams build up. A steep slope roof has more opportunity to vent the hot air out of the attic because of the larger space available in the attic, the intake cold air at the soffits and the exhaust vents at the ridge (and the pitch is steep and taller which helps). Ice dams will work their way up the roof slope as freeze thaw continues. As the ice dams work their way up the slope the ice dams push up shingles and get under the shingles and melt as a result of the hot air from your home entering the roof cavity and this causes leaks in to the home. Low slope membranes are not as susceptible to this problem because the membrane systems are harder for ice to get under. If you stay with shingles vs. a low slope membrane you can also use Ice & Water membrane under shingles. A good drip edge at the eave edge may also help.

Ice & Water Membrane (for under shingles): Ice & Water membrane is a self-adhered membrane that should be installed in warm weather (commonly referred to as a peel and stick). With a low slope roof like a 3:12 you can get away with using Ice & Water on the whole roof and installing shingles over top. “Get away with” is a loose term I suppose – it isn’t guaranteed that just this step will solve your condensation or roof leak issues from ice damming. Your roof assembly and / or attic system is like the lung of your home. Just solving one of the many potential problems (such as installing Ice & Water) may or may not solve the problem. If your roof is a steeper pitch like 5:12 or more then I would only recommend Ice & Water at the eave area (about 44″), in valleys (under valley metal), and around penetrations etc. Our main website has a lot of information about these details at www.grscanadainc.com. Click on “steep slope roofing” and view the various article, links, etc.

Anyway, back to low slope roofing issues and Ice & Water membranes…

Ice & Water membrane is suggested because when the hot air from your home gets to the underside of the shingles and ice dams melt under your shingles the Ice & Water may keep the water from getting into your home. But it may not. At issue is that when one installs the shingles over the Ice & Water, the shingle nails are now penetrating the Ice & Water membrane. BE CAUTIOUS with claims by roofing salespeople that tell you this is not a problem because the Ice & Water or peel and stick will “self heal”. In other words, the claim is that when the nail penetrates the membrane that the membrane will seal around the nail – or self heal. Not all peel and stick membranes do this and you are relying on it actually occurring – there is no way to know if it did or did not seal around the nails because the shingles are now installed over top of the membrane.

Frost and Condensation: Frost will collect on the underside of your roof deck sheathing if hot air from your home gets to that area. When the frost melts it can appear as though you have a roof leak when water appears on the ceiling. Condensation can also make itself appear as a roof leak. As warm air enters the attic or roof assembly and has no where to go (your roof exhaust vents are not performing properly) then the condensation can turn in to leaks. This will typically manifest at walls, windows and doorways. Condensation can slowly ruin the complete structural components of any home. Leaks can be occurring over years inside walls and slowly destroying your home, not to mention the issues with mold and mildew.

Attic Ventilation: Attic ventilation is critical. Venting your attic or roof space (limited in vaulted or cathedral ceiling homes) is critical. If you do not get the warm air out of the attic or roof assembly in an efficient manner that heat will cause many problems (as above – ice dams, frost, and condensation that cause leaks).

Soffit: Also known as the cold air intake portion. The soffit area of your home is the breath in part of your roof assembly lung. The soffits are located under the roof overhang. Sometimes they are located at the wall or vertical part of the exterior of your home. This scenario (soffits at the wall) is common in “architecturally designed” homes that are looking for a certain street appeal. Anyway, intake soffits are critical. The cold air must enter the roof assembly and travel along the underside of the sheathing and in the process take the warm air from your home (that is entering the attic) out and be exhausted by way of a rooftop vent, whirlybird or ridge vent system.

Be sure the soffit intake air is not being hindered by attic insulation. Very often home owners that do not understand the principals of attic ventilation that do their own home renovations will put insulation over the intake vents of soffits. Be sure there is no insulation over the vent areas around the edges of your attic space.

Roof Vents: The exhaust portion of your attic or roof assembly. Roof exhaust ventilation is critical. Their are various guides for how much roof ventilation a home needs, but the problem with these guidelines is that every roof system and attic or roof assembly is different. The common guide is that for every 100 – 300 square feet of attic space you should have at least one square foot of rooftop ventilation (exhaust). We can help you design a roof vent exhaust plan to bring your probability of success as high as possible.

One quick side note about roof vents… I very often am witness to home-owners that get so frustrated trying to solve ice dam, ventilation, leaks, condensation and the like (especially with low slope roofs) that they end up listening to any snake oil or uneducated roofing salesman or roofer. And what occurs is that they end up with a combination of roof vents on their roof. DO NOT allow just anyone to start adding roof vents. A whirly bird installed near static vents on a roof will not work. It will cause the air to get sucked in to the roof attic and run immediately to the other vent and out – which does not help the cause to say the least.

Vapor Barrier: And finally we get to the vapor barrier. The problem with the vapor barrier is that finding gaps or holes in a vapor barrier can take time. Look for any penetrations through the vapor barrier. Inspect these areas closely. You may want to re-tape or caulk or seal in some way all penetration just to be sure they are air tight. If you have a low slope roof assembly this is near impossible because you can’t crawl in to the roof space typically.

Is there good news? I feel bad for homeowners that have these problems – they put their life savings into a home that in some cases becomes such an aggravation that much of their life can become consumed with the problem because in some instances the problem is literally destroying their home, the family peace, and their life long investment.

There is good news, but often it takes a lot of patience with the person or company that is helping you and it often takes significant investment.

My advice is to be sure you have an expert. An expert can take you through a logical process of elimination. In other words, the possible reasons for the problem are such… and the list is in order of priority… and at each step of remediation lets take a look at how the roof assembly now performs under different weather and seasons.

Our experts are often booked months in advance and I know that anyone else that I’ve met that is an expert at this is also booked well in advance normally. Don’t let that discourage you, book with an expert and take the time it takes to get it done right and save your investment money and peace of mind. And be very careful with quick fix salespeople in this category of work because you could be throwing good money after bad if you choose the wrong company or so-called expert.

Call or write us anytime… in this instance I would recommend you write us and email your situation to info@grscanadainc.com. The issue with just a phone call to our call center is that you will be put on a waiting list that could be for many months. But a letter can be tackled sometimes remotely by staff that have some extra time while in the office. Be sure to include when you purchased your home, the issues you are facing with your attic or roof, if the leaks or condensation issues are occurring only when it melts on a nice winter day or if issues are present when it is bitter cold in winter or even in summer. It really helps to get photos of your home from street view and rooftop view because we can often suggest solutions even before we attend for a rooftop and attic inspection.

Some considerations for low slope re-roof planning for your home:

Low Slope Roof Membranes

Today there are many more options than once available for home-owners considering flat roof or low slope roofing membranes for re-roofing. We can remove the shingles on your home and apply a number of different systems.

Homeowners call us with concerns over the cost of low slope or flat roof membranes (relative to shingles) and this becomes a serious consideration when planning for a residential re-roof project.

Low slope roofing has changed and many options are now available for re-roofing your home that are much less costly than the traditional low slope tar roofing or torch down roll roofing.

The other thing that home-owners often call about is taking a low slope or a flat roof and having it turned in to a pitched (or a high slope) roof.

Today, solutions are available for low slope residential roofs that don’t require the cost of traditional flat roofing or the expense to go from a flat roof to a pitched slope roof on a home.

Newer low slope roofing membranes are “single ply”. EPDM is a single ply low slope roofing membrane that has a 10 – 30 year membrane warranty (the membrane warranty is available for residential re-roofing as well as commercial re-roofing) and some flat roofers will tell you they expect the newer single ply roofing membranes to last 30 or 40 years. TPO is also a single ply low slope white roofing membrane. Also available is PVC – PVC is similar to TPO in that it is single ply and typically installed as white.

There are the older style systems being the torch down sbs modified bitumen roofing membrane (or roll roofing) and Tar and Gravel flat roofing (or BUR / built-up roofing).

All membrane systems listed above work on low slope re-roofing projects.

And finally, there are metal roof or steel roofing systems for low slope re-roofing and even shingles for slopes to about a 4/12 pitch. Some roofing contractors are applying low slope shingles to 3/12 but we consider it a tentative practice at 3:12.

Low Slope Residential Re-Roofing

EPDM Membrane: The residential low slope roof in the pictures of this post are of a residential low slope roof that we are re-roofing this week. The low slope shingles are being torn off and replaced or re-roofed and converted to an EPDM flat roof membrane. The EPDM roofing membrane system carries a 20 year manufacturer warranty.

Attic Insulation: Also in the re-roofing process, we are removing the sheathing from this home and an attic insulator is blowing in insulation. We are then re-sheeting the roof deck substrate and adding a low slope insulation board and finishing the roof assembly with EPDM low slope roofing.

Flashing: All the roof flashings are being replaced in the re-roofing process – the eave, gable, chimney etc will be replaced as will all roof penetrations. The two low slope skylights are being replaced.

Ventilation: The venting of this low slope re-roofing project will be redesigned and installed at the ridge or peak of the roof with a custom made ridge ventilation system that will have a curb framed in first and then the ridge vent along the ridge. This will allow for proper attic / roof space airflow and ventilation, it will keep snow from covering the ridge vent, as well the custom framed curb for the vent will keep snow from entering the roof system.

You can follow this residential re-roof project by checking back regularly on our roofing blog as we will post pictures showing the process of re-roofing from a low slope shingle roof to a low slope flat roofing membrane.

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.

Confused by Roofing Shingle Options?

Roofing Shingles are available in ever changing profiles and colours.
If you are shopping for Roofing Shingles, below is a Roofing Shingle guide for homeowners.

General Roofing Systems Canada repairs shingle roofs throughout Canada. Our roofing services are available in Toronto, Calgary, Red Deer, Edmonton, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Kelowna, Vancouver, Whistler and points between.

Roofing Shingles – Roofing Shingle Manufacturer Links

Roofing Shingles – IKO Shingles
http://www.iko.com/products/residential/residentialall.asp

Roofing Shingles – GAF-ELK Shingles
http://www.gaf.com/Roofing/Residential/Products/Shingles/Shingles.aspx

Roofing Shingles – Certainteed Shingles
http://www.certainteed.com/products/roofing

Roofing Shingles – BP Shingles
http://emcobp.com/products.aspx?f=1&cat=1

Roofing Shingles – Malarkey Shingles
http://www.malarkeyroofing.com/#/20/shingle-color-selector/

Roofing Shingles – Owens Corning Shingles
http://roofing.owenscorning.com/homeowner/index.aspx

Pitched Roofing Section of our Website for more Roofing Shingle ideas.
https://www.grscanadainc.com/Pitched_Roofing.html

Choosing a Roofing Shingle Company
https://www.grscanadainc.com/Choose_Roofing_Contractor.html

All the best with choosing your Roofing Shingles.

Remember, we are available 24.7 toll free if you have any questions about roofing shingles, re-roofing shingles; roofing shingle installation “how to”, roofing shingle DIY, types of roofing shingles available, roofing shingle quotes, how to choose roofing shingle companies, etc

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.

Re-roofing Procedures

The photo above shows a Pine Shake to Shingle (IKO Cambridge Laminate Shingle) Re-Roof.

GRS re-roofs residential buildings and can make any modifications to the roofing system you feel would best suit your home. Our roofing services are available in Toronto, Calgary, Red Deer, Edmonton, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Kelowna, Vancouver, Whistler and points between.

The roof openings (goosenecks, roof vents, skylights, valleys, plumbing flanges, etc) when you are re-roofing need to be tied in (flashed with metal and with roof membrane) properly. The roof openings and valleys of the roof (where roof lines intersect) are where all the problems start with re-roofing.

Re-roofing Specifications GRS uses to attach, flash, neck tie our roof openings is shown in the photo above.

When re-roofing a home, it is critical to neck tie (surround the roof penetration) with proper peel and stick or blue skin membrane to avoid ice, snow, water back up into your attic space.

In this instance, a roof vent (goose neck – notice it is a coloured roof vent) is shown. The deck of the roof has a premium Titanium Synthetic Roof Underlayment installed, then the IKO Cambridge Shingles – the goosneck also has a premium Karnak Caulking underneath, then the gooseneck is installed and nailed, then a blue skin or a premium Ice and Water or Peel and Stick membrane (such as Grace Membrane) to the horizontal (or back side) and vertical (or side) of the gooseneck (not shown in pic as not installed yet) and then the IKO Cambridge Shingles continue to be installed – taking care not to nail through the laminate shingle and through the ice and water peel and stick and into the back of the vent flange into the deck. Once a flashing is installed, you do not want to nail again through a shingle and into the flashing to the roof deck.

Re-roofing properly takes time, experience, quality material, and a sense of pride in the work done.

Our re-roofing experts are trained in the highest principles of roofing we know. It keeps our company from ever having to return to our re roof job sites for repair. It costs a little more to re roof properly, but the customer gets a roofing job done so well that it will last for many years. Of course, our roofing contracting business is built on references and referrals, so it is our life line – not to mention that our roofing installers get to work with pride of workmanship. A premium re-roofing installation specification and premium re-roofing materials also allow us to have a Lifetime Workmanship Guarantee on all re-roofing projects.

Click here for contact form for a free estimate to repair or re-roof your home.

To review our company re-roofing specifications (GRS re-roofing installation manual) click links below:

https://www.grscanadainc.com/Pitched_Roofing.html

https://www.grscanadainc.com/Roof_Replacement_Home_Guide.html

https://www.grscanadainc.com/Roofing_Installers.html

Our BBB Accreditation.

And remember, our company has expert roofers on call 24 hours, 7 days a week to answer any roofing questions you may have!

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.