There is a small % of roofing contractors who knows how to install or repair flat roofing systems in Ottawa Ontario.
Homes built around the 1980s or prior years had tar and gravel roofing systems. Back then, it was the most popular roofing systems and it was affordable. 40 years later, these roofs need to be restored to new technology systems. New roofing systems like Modified Bitumen torchon roofs are a RedSeal specialty.
Finding a leak on a tar and gravel roof can be not only challenging, also it can be costly for the homeowners. In my personal experience, I always recommend for a new roof instead of trying to bandaid and old system.
In order to install a new roof, gravel needs to be removed off the roof, tar needs to be removed completely, and all the flashing needs to be removed. Once we are down to the bare wood deck, slope can be adjusted according to drainage that already exists and/or address the slope to prevent water pooling on the roof.
If the slope is good, the roof deck is in good shape, and fire protection will be the first item to installed, followed by the 180ff base membrane starting from the drain of course. 180ff membrane will be folded down onto the side walls prior to installing dripedge starter metal flashing. Once the dripedge is installed and fastened with nails, everything has to be spray primed (manufacturer recommended ) for a superior seal. The next step is to install a strip of 180ff membrane on the flashing to seal the nails and flashing to the field. Now, we are ready for the Torch 250cap membrane starting from the drain.
We only use white color membrane to maximize energy efficiency and regulate the temperature inside house as well as extend the life of the roof.
If you are in need of flat roof repairs or in the market for a new roof, we offer free flat roofing estimates in Ottawa, Rockland, Cumberland, Rockcliffe, Vanier, Nepean, Barrhaven, Kanata, Stittsville, Manotick, Greely and Gloucester Ontario.