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

 

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