New roof installation for new builds and additions, with code-compliant flashing and ventilation.
What roof installation involves
New roof installation covers new builds, additions and detached structures. We work from the deck up, installing the full assembly to code: underlayment, ice-and-water protection where the climate demands it, balanced intake-and-exhaust ventilation, step and counter flashing at every wall and penetration, and the finished roofing surface. Proper ventilation is not optional in Canada — it prevents the attic heat that drives ice dams and the trapped moisture that rots sheathing.
What's included
- New-build and addition roofing
- Code-compliant ventilation
- Material options to suit budget
- Free written quote
Built for the Canadian climate
We match the system to the building's design, slope and budget, and confirm every detail in writing first. Across Canada, snow load, ice dams and freeze-thaw cycles are hard on roofs, so we detail every job for the weather it will actually face. On new builds and additions we coordinate with your schedule so the roof is watertight before the next trade arrives, and we size the ventilation to the finished attic so the assembly breathes the way the building code intends.
When you need a new roof installation
New installation applies to new builds, additions, garages, and detached structures that have never had a finished roof. Unlike a replacement, there is no tear-off — we build the complete assembly onto fresh decking, coordinating with the other trades so the structure is watertight on schedule.
Our roof installation process
We confirm the deck is sound and to specification, then install the full system in sequence: ice-and-water protection where the climate requires it, underlayment, drip edge, balanced intake-and-exhaust ventilation, step and counter flashing at every wall and penetration, and the finished surface. Every detail is installed to manufacturer specification so the product warranty stays valid.
Why correct ventilation matters
Ventilation is the detail most often shortcut on a new roof, and the one that causes the most trouble later. A balanced system lets cool air in at the soffit and warm, moist air out at the ridge. Get it right and the attic stays dry and ice dams are far less likely; get it wrong and you trap moisture that rots sheathing and voids shingle warranties. We size ventilation to the finished attic, not by guesswork.
Coordinating with your build schedule
On a new build or addition, the roof has to be watertight before the interior trades can start. We coordinate closely with your builder or general contractor so the roof goes on at the right point in the sequence and the structure is protected on schedule. A roof installed out of sequence, or rushed to catch up, is where many long-term problems begin — so we plan the timing as carefully as the work itself.
Materials that suit the building and the budget
A new installation is the moment to choose the right system for the building's design and how long you plan to own it. Architectural asphalt shingles offer the best value for most homes; metal suits owners who want a roof that lasts decades and sheds snow; flat-roof membranes serve low-slope sections and modern designs. We lay out the lifespan, appearance and cost of each so the choice is informed and yours, and we install whichever you choose to the standard its warranty requires.
Building a new roof to code from the deck up
A new roof installation is the one chance to build the assembly correctly from the very first layer, with no old roof hiding problems underneath. We treat that as the standard it deserves. Working up from sound decking, we install the components in the right sequence and to code: ice-and-water protection at the eaves and valleys where freeze-thaw and ice dams are a risk, a quality underlayment across the field, drip edge at the perimeter, step and counter flashing woven in at every wall, chimney and penetration, and balanced intake-and-exhaust ventilation sized to the finished attic. Only then does the finished surface go on. This sequence matters because a roof is a system, not a single product — the surface you see is only as good as the layers and details beneath it. On new builds and additions we coordinate the timing with the other trades so the structure is watertight before interior work begins, and we leave you with a written record of the full assembly for your files and any future warranty claim.
From garage to full custom home
We install roofs on every kind of new structure — detached garages and workshops, room additions and dormers, and complete new-build homes. Each has its own framing, slope and finish, and each is built to the same standard: a complete, code-compliant assembly that is watertight from the first season. Because there is no old roof to work around, a new installation is the cleanest chance to get every layer and detail exactly right, and we take it.
Get a free written quote
Every roof installation project starts with a free, no-obligation written quote based on a real inspection of your roof. We confirm the scope, materials and price before any work begins, and back the work with a workmanship warranty.