Roof insulation

Climatic conditions are particularly harsh in Quebec.
Temperatures can drop to -15°C in winter.
In summer, it can reach 30°C.
Roof insulation is essential in this part of the world.
It helps maintain a pleasant indoor climate all year round.

Good insulation reduces the need for air conditioning and heating.
The result is a significant reduction in energy consumption costs over the long term.
At Toiture Grand-Montréal, we can handle roof and attic insulation.

Roof insulation

Interior insulation

This is the least expensive alternative.
It’s also the most common.
This solution is ideal for structures in good condition.
Insulating materials are installed under the rafters.
The result is satisfactory and long-lasting.
Acoustic comfort is also optimal.
However, interior insulation makes ceiling space more cramped.

Here are the minimum ceiling heights required by law:

• 2.70 m for living areas
• 2.10 m for bathroom and kitchen

Exterior insulation

With external insulation, the roof is covered with insulating materials.
This is also known as the “sarking technique”.
The main advantage of this method is that it does not compromise comfort in the home.
Occupants are not disturbed during the work.
What’s more, the height of the sub-ceiling remains intact.

What’s more, it’s the safest option if the structure isn’t in good condition.
On the other hand, it’s rather expensive and not suitable for all constructions.