How to Install Skylights on a Flat Roof Without Compromising Waterproofing

Skylights are an excellent solution for maximizing natural light in your home or commercial building. However, installing them on a flat roof presents specific challenges, particularly in terms of waterproofing. At Couvreur René Perron Ltée, we recognize the importance of precision and expertise in preventing water infiltration and ensuring the long-term durability of your roof. With over 100 years of experience in Montreal, Laval, and surrounding areas, we are the trusted roofing experts for your skylight installation projects.

The Benefits of Skylights on a Flat Roof

Adding a skylight can transform a dark room into a bright, welcoming space. Here are some of the key benefits:

• Abundant natural light: Reduces the need for artificial lighting.

• Energy efficiency: Lower electricity usage thanks to natural daylight.

• Enhanced aesthetics: Adds a modern and elegant touch to your home’s interior.

However, to fully enjoy these benefits without compromising your flat roof’s waterproofing, professional and meticulous installation is essential.

Key Steps for a Successful Installation

1. Choose the Right Location

   Skylight placement is critical. Avoid low points on the roof where water tends to pool. Instead, select a high, clear area to reduce the risk of water infiltration.

2. Select the Right Type of Skylight

   There are several types, such as tubular or traditional skylights. Tubular models are often easier to install on flat roofs and offer a lower risk of leaks due to their compact design.

3. Prepare the Roof Structure

   A precise opening must be made to insert the skylight frame. At Couvreur René Perron Ltée, we use advanced techniques to ensure a perfect fit while preserving your roof’s structural integrity.

4. Install a Waterproof Membrane

   The key to leak prevention lies in applying a waterproof membrane around the skylight frame. This membrane must be tightly sealed to the roof’s surface to create an impenetrable barrier against water.

5. Add Extra Protective Elements

   For added protection, we recommend installing metal flashing or moisture barriers around the skylight. These components help prevent standing water or melting snow from reaching vulnerable areas.

Regular Maintenance: A Must!

Even with a flawless installation, regular maintenance is crucial for preserving your flat roof’s waterproofing and extending the lifespan of your skylight. An annual inspection can quickly spot wear in the seals or membrane. It’s also important to clear any debris around the skylight to ensure proper drainage. If you notice cracks or signs of leakage, prompt repairs are essential to prevent further damage.

At Couvreur René Perron Ltée, we offer preventive maintenance programs that include regular inspections and prompt repairs, helping you avoid more costly issues in the future.

Why Choose Couvreur René Perron Ltée?

Since 1924, Couvreur René Perron Ltée has built a solid reputation as a leader in Quebec’s roofing industry, with over 71,000 projects completed and an unwavering commitment to quality, durability, and customer satisfaction. Beyond skylight installation, our expert team offers a comprehensive range of services, including roof repair and replacement, insulation, snow removal, and thermographic inspections.

We work on both flat and sloped roofs, and thanks to our exclusive warranties of up to 15 years, you can enjoy complete peace of mind when you trust your project to our experienced team.

Installing a skylight on a flat roof requires precision and expertise. Don’t risk damaging your roof with an improper installation. Turn to Couvreur René Perron Ltée, your roofing experts in Montreal and Laval. Call us today to request a free estimate. Let’s bring natural light into your home while keeping your flat roof perfectly sealed.