1. The visit and the quote
Everything starts with a visit. We measure the roof and examine the covering, the flashing, the vents and, when possible, the attic. We also note the access. Logistics are part of the job.
Every well-run roof replacement starts with this visit, and the written quote that follows is the basis of the contract.
2. The permit and borough requirements
In most Montreal boroughs, replacing the covering of a flat roof requires a permit. Several also require a white roof or a reflective material. Heritage areas have their own standards.
Settle this question before you sign. Check with your borough and agree with us, in writing, on who applies for the permit.
3. The contract and the schedule
Once you have made your choice, the contract sets the work, the materials, the price and the planned period. Roofers work around the weather. Expect a window of dates rather than a precise day, especially in peak season.
4. Delivery and protecting the property
On the day, a container is dropped near the building and the materials are delivered, sometimes straight onto the roof. We protect what sits at the foot of the walls, such as flower beds, the deck, basement windows and the air conditioner.
5. Tear-off
We remove the old covering, section by section, and throw the debris into the container. This is the noisiest stage of the job.
As a precaution, a roof is never opened over more area than can be closed up the same day.
6. Inspecting and repairing the decking
Once the wood is bare, its real condition finally shows. Rotten, split or overly soft boards or panels are replaced.
This is when an extra charge can appear. Ask us to show you the damaged wood, or to photograph it, before we replace it.
7. Installing the new system
On a pitched roof, installation roughly follows this order:
- the drip edge and the eave membrane
- the underlayment over the rest of the surface
- the shingles, from the bottom up, with flashing and vents built in as we go
- the ridge
On a flat roof, we install the support board and the insulation when the project calls for them, then the membrane base sheet, the cap sheet and the upstands along the parapets. Drains and vents are carefully sealed. Leaks often start at these details.
8. Cleanup
At the end, we pick up the debris, empty the gutters and run a magnet over the ground to collect nails. The container then leaves. Walk around the property and point out right away anything that was missed.
9. Final inspection and documents
Before the last payment, walk around the property with the person in charge of the job. You do not go up on the roof. Ask for photos of the finished roof.
You should receive the detailed invoice, the warranty documents and the list of products installed.
Frequently asked questions
What happens if it rains during the work?
We watch the forecast and only open what we can close up. If rain comes unexpectedly, the open section is covered temporarily. Ask us before the job how we protect an open roof.
Do I need to be home during the job?
No, you do not need to be home during the job. Stay reachable, though, especially when the decking is exposed. A decision on extra work may be needed quickly.
In what order should the roof and other renovations be done?
As a general rule, the roof is redone before interior finishes, so new ceilings are not put at risk. If you are planning a rooftop deck, solar panels or a new skylight, tell us before the quote.
Can I replace my roof myself?
Replacing your roof yourself is not recommended. Working at height is dangerous, and an installation that does not follow the manufacturer's instructions can void its warranty. On a flat roof, welding a membrane takes equipment and training. Also check with your borough what the permit requires.