Metal Roof Restorations

General Roofing Systems Canada provides Roof Restorations throughout Canada. Roof Restorations 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.

A metal roof restoration is a less expensive alternative than having a roof replacement completed.

Roof Coating – Liquid Rubber Solutions

Leaking Metal Roof Systems

A metal roof on a residential project may or may not be installed on a high slope. If installed on a high slope, it is less likely to leak However, many industrial and commercial roof systems are low slope. If a metal roof is installed on a low slope, chances are leaks will occur.

Why does Metal Roofing Leak?

Metal roofing expands and contracts with changing weather conditions, which causes the roof fastener holes to get larger over time. This is especially true in our unpredictable Western Canadian climate. Expansion and contraction of the metal causes the seams to expand and contract which can cause leaking as the seams  become less crimped or locked over time. Ice damming and snow loads can also cause metal roofing to leak. Ice damming can even back up at the eave of a metal roof,  especially if there is a gutter system that is frozen solid. Ice damming can move roof vents or various roof openings enough to cause a leak. Snow loads can weigh down metal roofing so much that seams become more exposed. Caulking of roof vents and roof openings become brittle and crack over time which can also cause leaks.

SG1S1511
Metal Roofing – Ice Damming at Eave

Metal roofing will also trap moisture on the underside, causing condensation that will eventually result in a roof leak.

Metal roofing is a watershed product,  not to be mistaken as a waterproofing product. Waterproofing is a completely different discipline in roofing. Metal systems are inherently designed to be secure yet will eventually leak.

SG1S1524
Metal Roofing – Roof Ice Damming Leaks

Metal roofing is one of the best roofing systems you can purchase in the world. It will outlast most other roofing surfaces. However, there are some exceptions that will last longer, such as: slate roofing, rubber roofing, concrete tiles, synthetic tiles. Nonetheless, a metal roof is undeniably one of the longest lasting roofing materials in the world.

What separates a roof that lasts fifty years and a roof that lasts twenty years is the quality of roofing material, the metal roofer’s installation specifications, and proper maintenance of the roof over the years.

metal roof 7 (2)
Metal Roofing – Installation is Key

Quality metal roofing costs more than the less expensive versions.  A lower quality, less expensive metal roof may only last fifteen or twenty years. whereas a metal roof that is installed using a higher quality will last fifty years. In either instance, if the metal roof is installed poorly, a fifty year metal roof may only last a year.

A metal roof installation needs to be precise and needs to allow for the fact that it  is a watershed and not waterproofing material. By its nature, a metal roof  watersheds, therefore it is expected to eventually leak. Whether that leak will affect you is determined by a number of variables such as hidden fasteners that provide more protection than exposed fasteners, using locking panels, using a steep versus a low-slope system, and a premium roof underlay beneath the metal roofing material.

Edmonton, AB Rooftop Snow Removal
Metal Roof Maintenance

Replacement, Repair, or Restoration. What’s the Answer?

There are a number of ways to avoid the problem prior to needing to replace a metal roof. We won’t go in to those ways in this article, as this article is to assist those wanting to explore avenues of metal roof restoration, repair, or replacement.

General Roofing Systems will typically suggest a few answers to your metal roof leak problems:

Maintenance
Maintenance should be conducted on an annual basis. Caulking made for metal roofing is available and should be re-done every fall. Be sure gutters are kept clear during the winter. DO NOT let your gutters freeze up as this will cause problems with your metal roof. Also, snow loads are important; try your best to maintain a reasonable amount of snow on your roof. If possible, keep the snow off.

Repair
Repairs usually involve maintenance such as caulking, replacement of vents or some form of sheet metal fabrication for a detail on the metal roof. If the roof leak and subsequent repair isn’t focused to a specific issue, but is more of an intermittent leak issue, then you are likely best looking at a metal roof coating or a metal roof replacement.

100_0086
Roof Coating – Liquid Rubber Technology

Coating
Coatings were once looked at as a short term solution.

New coating technology is extremely successful, long lasting, consistent, and has finally solved the roof expansion and contraction problem.

Liquid rubber polyether roof coating technologies are solvent free, maintain 900% elongation, UV resistant, bond to almost any construction or substrate, liquid cold applied, elastomeric, great for green roof applications, 100% solids and will not shrink, they are compliant with all known environmental requirements, resistant to thermal shock and slumping at high temperatures.

The first benefit of coating a metal roof vs. replacing your roof: Metal roof repair, or coatings, are considered maintenance and as a result are a tax deduction.

The second benefit of metal roof coating in today’s market is that the new liquid rubber coatings are highly effective, even more so than most new metal roof systems. The new liquid rubber coatings are highly advanced (developed as a result of nanotechnology) and the elongation values are in the order of 900% and are UV resistant. The roof coatings move with the expansion and contraction of the metal roof and keeping it waterproof.

The third benefit of the new metal roof coatings is that a roof coating will cost you about 1/3 to 1/2 the price that a new roof replacement would.

The final benefit to coof coatings worth mentioning is that the new liquid rubber polyether technology last several years.  We have a ten year warranty with an option to extend to twenty years in some instances (requiring a maintenance coat at 10 years typically).

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 & 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.

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:

100_0108
Roof Coating – Industrial Roof Restoration: Alberta. Liquid Rubber to metal roof.
100_0109
Roof Coating Crew on Metal Roof.
100_0110
The white company truck was black after this roof coating job
100_0111
Roof Coating just applied to metal roof – still setting up.
100_0112
Trowel grade liquid rubber hand applied to roof vents, flashing, etc. We also use mesh and seam tape to reinforce these areas.
100_0113
After trowel grade applied to openings, field of metal roof is coated.
100_0114
Liquid rubber trowled to roof vent
100_0118
OHS Compliance – Roofers must be in proper hard hats, steel toes, shirts, etc on all sites.
100_0119
So close to completing the roof coating and here comes the rain storm.
100_0120
Screws and metal roof seams are reinforced with trowel grade liquid coating.
100_0123 - Liquid Rubber Roof Coating
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.
100_0122
First coat of roof coating applied
100_0124
The Roof Coating was excellent solution around windows on this low slope metal roof.
100_0125
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.
100_0126
Industrial roof coating in progress.
Roof Coating - General Roofing 5
Roof vents, screws, seams, flashing, etc reinforced prior to roof coating being applied.
Roof Coating - General Roofing 8
Roof Coating rolled out onto the roof.
Roof Coating - General Roofing 10
GRS Crew working hard! This part of the metal roof was completed right before storm rolled in.
Roof Coating - General Roofing 9
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.

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

Tims 053
Tims 071

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.