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.

Installing Roofing Underlayment/Roof Membrane

General Roofing Systems Canada provides the best shingle re-roofing specifications and installation available in the roofing industry to Toronto, Calgary, Edmonton, Red Deer, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Kelowna, Vancouver, Whistler, and points between.

Re-Roofing Right. Why not install the roofing underlayment to the whole roof deck? Why not install it correctly? And why not use a roof underlayment that actually works and does what it is intended to do in the first place?

When re-roofing, roofers have a tendency to leave roofing underlay short at the roof edge when rolling it out (wind blown rain gets to the roof deck), or at the ridge of the roof (a ridge cap shingle cracks and a roof can leak), or don’t wrap their ridges and hips in underlayment hoping the shingles will perfectly do the job , or don’t run the roof underlayment or membrane up and under roof flashings, up and under skylight flashings, and wrap or neck tie roof penetrations with roof membrane such as roof vents, skylights, etc assuming that ice, snow, and water won’t back up under shingles and cause a roof leak.

Our roofing installation specifications call for the whole roof to be wrapped in underlayment or Ice & Water peel and stick membrane, and then we don’t have to worry about wind-driven rains, ice and snow backup, and ice dams at the roof edge or in valleys – all culminating in leaks. When we install a roof, the complete roof deck is wrapped in a “monolithic” style membrane specification and the roof cannot leak.

This specification includes running the roof underlay to the edge of the roof all the way, wrapping the ridge and hips into the underlay. -No part of the roof deck shows. Even on the coast, our roofs take punishing windstorms in places like West Vancouver.

Also, the roof penetrations (goosenecks, roof air vents, etc.) have Ice & Water membrane on the backside of the opening so that when ice, snow, and water build-up (ice damming) gets under the shingles, the roof underlayment is there to protect the roof from leaking. The same principle applies for installing a membrane at the wall and up & under skylight flashings (especially to the back side). Skylight leaks are one of the most common calls our emergency leak service receives.

Our roof installers also install Ice & Water peel and stick membrane to the valleys, right to the roof deck, and then metal valley flashing is installed on top of the membrane (even if the client wants a closed shingle valley, we still put metal flashing underneath the shingles), and then Ice & Water membrane is also installed to the top of the valley flashing edges so that when ice, snow, and water backs up in the roof valleys (ice damming which in Edmonton, Fort Mcmurray, Grand Prairie, Saskatoon, Regina, etc was so bad last winter) it can’t get back under the valley metal flashing and cause a leak.

At the roof eave we install Ice & Water membrane for ice, snow, and water back up at the gutters (last winter in Edmonton we had over 500 phone calls for ice damming at the eave on residential roofs alone – in one city during one winter!) – this is a primary area of concern for ice damming issues. The membrane sticks right to the roof deck and this avoids roof rot and roof leaks at the roof eave edge.

At the main area of the roof (the roof field) we use premium synthetic roof underlayment ( Premium Titanium Roof Underlayment ) which is twenty times stronger than roof felt underlay, it is lighter than tar felt paper, is recyclable, and doesn’t crack or rip at point of installation or from UV exposure.

If you (the homeowner that is getting your new roof) watched the roofing installation crew roll out felt paper at the point of re-roof installation, as seen right from the roof top… what actually occurs would cause you to never imagine EVER installing tar paper (felt paper) under your roof shingles. It cracks when the installers roll it out! This happens before it is even installed, and then it somehow has to go up angles at skylights, etc. And then the staple hammer tackers start whacking thousands of staples into it – each time the hammer tacker hits, it also tears the tar paper felt, and if it is cold outside it is even worse, and then the shingle nailers start and on one house 7000 – 12000 roofing nails are installed right through that paper. And to top it off, if you have a shingle blow off due to wind, do you think the brittle tar paper will even stay on the roof if the shingle blew off? What protects your home at that point? WE DON’T USE ROOF TAR PAPER – FELT PAPER – ROOFING FELT on our pitched re- roofing installations period – NEVER.

“t is the best possible roof underlayment specification and installation available to a homeowner for re roofing and is a standard specification for GRS Re-Roofing Installations.

Below are photos of a re-roofing project in progress that show the various areas of “small detail” in roof underlayment and Ice & Water membrane specification that creates a great re-roof end result.

Ice and Water Membrane to Back and Sides of Roof Openings, Wall, Step
Ice and Water Membrane to back of roof openings.
Ice and Water Membrane Under Valley Flashing, On Top Sides
Ice and Water Membrane installed to roof deck and then again to sides of metal valley flashing after metal was installed. Also note membrane wraps ridge and no wood is showing.
Premium Ice and Water Underlay to Eave and Along Step Flashing
44″ Ice and Water Peel and Stick Membrane installed to roof eave area where ice, snow, and water back up at gutters and get under shingles and cause roof rot and roof leaks. Synthetic premium roof undleryment installed to roof deck. Underlayment goes right to wall and up and under step flashing at wall.
Re-Roofing, Shake to Asphalt, Underlayment Wraps Hips, Complete Roof
Premium synthetic roof underlayment to field are of roof is wrapped over hip of roof and peel and stick ice and water at eave area also is wrapped over the hip to create a monolihic type roof underlayment installation. Photo also shows roof valley prior to installation of ice and water membrane and then valley metal and then ice and water membrane installed again at edges of valley metal.
Re-Roofing, Shake to Asphalt, Underlayment Wrap, Slylight, Complete Roof
Skylight is shown with ice and water membrane installed to roof deck and up and under the flashing of the skylight. Also note the field area underlayment is synthetic and runs over the ice and water detail at edge of skylight. Photo also shows coloured flashing at skilight and ice and water membrane to back of skylight area.
Re Roofing Underlayment Right to Roof Ridge and Edge - Not Cut Short
The photo above and the two below show synthetic underlay in field area of the roof installed right to the edge of the roof and not cut short. The roof underlay also is installed right to the roof ridge and is wrapped over the roof ridge and is not left short. The goose neck is wrapped in ice and water peel and stick membrane and the plumbing stack is about to receive installation of the flashing boot, but prior to the premium Karnak bead of caulking is placed on the roof deck and then the rubber boot flashing.

Re Roofing Underlayment Right to Roof Edge - Not Cut Short

Underlay Wrapping Ridge and Under and On top sides of valley metal

 

 

  • Click for an online re-roofing quotation.
  • For more information about our re roofing installation specs you can visit our pitched roofing section of our website here:

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

  • To visit our main website click here.

If you have any questions about installing your shingle roof properly, or you need emergency roof repair service, or just have a simple question about your roofing, give us a call anytime. We have roofing experts available 24 / 7!

Until next time,

The Team at GRS

CONTACT US:
General Roofing Systems Canada (GRS)

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

info@grscanadainc.com.

British Columbia | Alberta | Saskatchewan | Manitoba | Ontario

Re-Roofing Roof Shingles The Right Way

General Roofing Systems Canada Offers Expert Re-Roofing with our Exclusive GRS Re-Roofing Specifications in Toronto, Calgary, Red Deer, Edmonton, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Kelowna, Vancouver, Whistler, and points between.

GRS Canada has an unusual residential re-roofing specification standard – interestingly enough… it works!

Ask us for re-roofing client references that will tell you all about how our systems keep their homes completely, perfectly water tight without any concern.

Re-Roofing With Premium 44" Ice and Water Underlay to Roof Eave and Wall
Re-Roofing With Premium 44″ Ice and
Water Underlay to Roof Eave and Wall

In the photo above, a premium 44 in. Ice & Water membrane (IKO Goldshield Ice and Water Protector) is applied at the roof edge (eave) and to the wall area to the deck and up & under the step flashing onto the wall. The roof eave protection avoids backup from water and ice at the eaves-trough during freeze, thaw, and ice damming. The ice and water membrane is a peel and stick self-adhered membrane that sticks to the roof deck, blocking ice and water penetration, thus mitigating roof rot. The Ice & Water under the step flashing at the wall and up the wall also protects the deck, wall, and vapour barrier from ice and water penetration.

When Re-Roofing Our Roof Underlayment Wraps Hips and Ridges
When Re-Roofing Our Roof Underlayment Wraps Hips and Ridges

Also of note in the photo is the high gauge coloured metal eave drip edge flashing (GRS re-roofing standard), the wall area step flashing (galvanized metal that meets the wall) will be coloured when the re-roofing process is complete as the profile of the previous pine shakes were higher than the new laminate shingles, and finally of note in this photo is the ultra premium synthetic underlayment  (Titanium Synthetic Underlayment) to the rest of the roof deck (also a GRS standard re-roofing specification).

Titanium synthetic roof underlayment is many times lighter and twenty times stronger than standard roof felt. It doesn’t break down like felt in UV, doesn’t expand/contract or get brittle like roofing felt, contributes to LEED points, and is 100% recyclable.

The photo to the right shows an Ice & Water membrane to the back side of the gooseneck roof vent and to the top side areas, and again this membrane is along the wall and step flashing of the roof (GRS standard).

Ice and Water Membrane to Back and Side of Roof Openings
Ice and Water Membrane to Back
and Side of Roof Openings

Under that gooseneck vent is a premium Karnak caulking bead for added protection.

Have Ice & Water “necktie” all roof openings avoids ice/water backup under the shingles at the back of the vent area and under the vent onto the roof deck and into your attic and home. That is the number one repair our technicians undertake when repairing shingles roofs – likely 8 out of every 10 emergency roof repair calls we receive in sloped shingle roofing is for this reason (or some form of underlayment deficiency).

The photo to the right shows another GRS specification. A premium 44 in. Ice & Water membrane is applied to the roof sheathing in the valley, then a high

Re-Roofing Master Spec - Ice and Water is applied to the roof deck, then high guage valley metal (coloured) and the premium ice and water membrane to edges of valley metal to ensure "monolithic" type seal.
Re-Roofing Master Spec – Ice and Water
is applied to the roof deck, then high guage
valley metal (coloured) and the premium
ice and water membrane to edges of valley
metal to ensure “monolithic” type seal.

gauge coloured metal is applied over the membrane. For extra confidence, a “monolithic” type roof seal is created using another Ice & Water application to the edges of the valley metal. The premium synthetic roof underlayment is then run into the valley area.

If the metal has a crimp at any point, and when the metal expands and extracts (which metal does), it happens to snap – this is where a lot of roof leaks occur. When this occurs, we do not have to worry about this as our metal is a heavier than normal gauge and should not snap, but we also have a premium quality membrane underneath the metal valley.

Also, if ice and water backs up in our valleys and gets under the shingles, which regularly occurs, we have yet more sealant again at the edges of the valleys, which seals the roof valley. In this way, it cannot leak, as water cannot get around the side of the valley metal to the roof deck.

Finally, even when we close the roofing valley with shingles, we still use this underlayment re-roof specification so that when the roof shingles fail in the valley from age or when someone walks on the shingles in the valley, we then have the Ice & Water and metal underneath the shingles. We apply this method when some homeowners want a re-roof to show only shingles and no valley metal in the roof valley. Our specification mitigates shingle deterioration in the roof valley area first, as that is where most roof water runs and ice builds up.

Our website has an extensive section (it is actually the shingle re roofing installers installation manual) that details our re-roofing how to and the specifications of re roofing our installers are held to at this link:

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

When deciding who you are going to choose as your Re Roofing Contractor we have compiled a check list here:

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

We also are proud of our Re Roofing Installers and have prepared a document explaining how our re roofers are different here:

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

Contact us today for a roofing quotation.

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

Until Next Time,

The Team at GRS

CONTACT US:
General Roofing Systems Canada (GRS)

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

info@grscanadainc.com.

British Columbia | Alberta | Saskatchewan | Manitoba | Ontario