Building a Flat Roof: A Step by Step Guide
Understanding flat roofs
If you need to renovate or replace your roof, you may be wondering if you should build a flat roof. Constructing a new roof represents a significant investment; therefore, it is essential to fully understand the options available to you and make an informed decision!
Here is an overview of the different types of flat roofs, the materials used, and the best choices to make based on your budget and needs.
Definition and Features
A flat roof is essentially a roof with a very slight slope, typically varying between 1 and 5%. The incline does not direct water toward the walls, as with a traditional roof, but rather toward the centre where a water drainage system is located. Unlike a pitched roof, there is neither an attic nor any unused space under a flat roof. It also offers a decidedly more modern style and is generally an eco-friendlier choice.
Types of Flat Roofs
If you decide to build a flat roof, you will have access to a wide range of materials, but more importantly, you will have the option to determine the purpose of your roof —something that is not possible with a pitched roof.
Beyond asphalt shingles and gravel, you can opt for various types of membranes, such as TPO and EPDM, both of which are resistant to UV rays and harsh weather conditions, on top of also being recyclable! You may also choose an elastomeric membrane or even a white membrane, which helps to reduce heat islands.
A flat roof offers a unique possibility compared to a pitched roof—namely, the option of converting your roof into a terrace or opting for a green roof. This allows you to increase the size of your outdoor space without needing to expand your property!
Advantages and Disavantages
Every roofing option and materials come with their share of advantages and disadvantages. Regarding roofing costs in 2025, one of the strengths of a flat roof is that the actual roof area is smaller than that of a pitched roof, which translates into lower costs in terms of materials and labour.
Furthermore, being more easily accessible and safer, maintenance is also simplified. It is less exposed to gusts than a pitched roof, meaning it is less prone to related damage. The greatest advantage of a flat roof is undoubtedly the possibility of adding additional outdoor living space, including a terrace or garden.
Furthermore, being more easily accessible and safer, maintenance is also simplified. It is less exposed to gusts than a pitched roof, meaning it is less prone to related damage. The greatest advantage of a flat roof is undoubtedly the possibility of adding additional outdoor living space, including a terrace or garden.
Why Choose a Flat Roof?
There are several reasons to choose a house with a flat roof, as we have seen above. When you entrust the construction, repair, and maintenance of your flat roof to a professional team with many years of experience, such as that at Clinique de la toiture FCA, the advantages far outweigh the disadvantages.
Steps of Building a Flat Roof
Building a flat roof requires adhering to several steps to ensure your project’s success. Our team of experts is available at every stage, guiding you towards the best materials and solutions according to your budget and lifestyle.
Design and Planning
We will help you determine the type of flat roof best suited to your desired final outcome, within your budget. We will ask the right questions to help you better prioritize, ensuring the completed project meets your expectations.
Choice of Materials
We will help you determine the type of flat roof best suited to your desired final outcome, within your budget. We will ask the right questions to help you better prioritize, ensuring the completed project meets your expectations.
Construction steps
Les étapes précises dépendront du type de toit plat et des matériaux que vous aurez sélectionnés, mais voici quelques étapes clés pour la construction d’un toit plat :
- Site preparation and safety
- Installation of the supporting structure
- Installation of thermal insulation
- Application of the waterproofing membrane
- Drainage and water evacuation systems
- Finishing touches and accessories
Why Choose Clinique de la Toiture FCA?
At Clinique de la Toiture FCA, we specialize in building flat roofs. Our team of experts can guide you throughout the entire process, from design to choice of materials, and from construction to maintenance.
We also work in partnership with Financeit, one of the leading loan providers in Canada, who can help you finance your roof.
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