Re-roofing
Replacing a roof that has reached the end of its life — the old covering comes off, the deck is checked, and a new roof system goes on.

When a roof needs replacing rather than patching
A repair makes sense when the roof is sound and one area has failed. Re-roofing is the answer when the covering itself is worn out — and the signs usually show up in more than one place at once.
- Shingles curling, cupping or losing their granules across whole slopes
- Bare or cracked shingles, or pieces coming off in wind
- Leaks or staining appearing in several separate spots
- Sagging or soft areas that suggest the deck underneath is affected
- A roof old enough that repairs are becoming repeated
What a re-roof involves
The old covering is stripped off so the roof deck can be seen and any damaged sheathing dealt with before the new system goes on. Underlayment, flashing at walls and penetrations, and the roof covering itself are then installed as one system — the flashing and ventilation details matter as much as the shingles.
Choosing the new roof
Most homes here are re-roofed in asphalt shingles, but a metal roof is an option worth weighing on some buildings, and low-slope sections need a flat roofing membrane rather than shingles. Tell us what you have and what you are considering and we can talk through what suits the building.
What to send us
A short description of the roof, your address, and photos if you have them — including any interior staining. The more detail you share, the faster we can give you a useful answer.
Related roofing services
Work that often goes with re-roofing.

Asphalt shingles
The most common roof covering on homes in this area — an asphalt shingle roof, installed over proper underlayment and flashing.
Asphalt shingle roofing details
Metal roofing
A metal roof sheds snow and water readily and lasts a long time — a choice worth weighing on the right building.
Metal roofing details
Roof ventilation
A roof needs to breathe. Air comes in low at the soffit and leaves high at the ridge — when that stops working, the damage happens out of sight.
Roof ventilation detailsThinking about re-roofing?
Send us the details and Georgian Bay Roofing will follow up with next steps.
Tell us what you need help with
Share a few details about your roof and the best way to reach you. We'll follow up to confirm what we can do.