How to replace flat roof tend to have a shorter lifespan than pitched roofs, so it’s important to replace them before they start to leak. If you’re wondering when the time is right for flat roof replacement, look out for mold or mildew smells in your home, high energy bills, water marks on the ceiling and roofing materials that are peaked, cracked, creased or pulling up. It’s also time to replace a flat roof if there are multiple patches in place, as these create more seams for water to leak through.
During flat roof replacement, roofing teams use specialized tools to tear away the old roof membrane and decking. Like peeling back an onion, this process exposes the layers beneath until all that’s left is the steel or concrete decking underneath. Once the decking is exposed, roofing contractors can install new underlays and a waterproof coating to protect your property from rain and sun damage.
Step-by-Step: How to Replace a Flat Roof
Once the underlayment is in place, the roofing team can begin installing your chosen roof. Depending on the type of flat roof you have, roofing materials such as rubber, metal, PVC or TPO are available. These are typically cost-effective and highly durable, although EPDM is the most popular choice for long-lasting protection.
The roofing crew can then torch down an asphalt layer to seal the roof completely. Special attention is given to areas around vents, chimneys and skylights, which are hotspots for leaks. Roofers may also add extra flashings to make sure that all the nooks and crannies are 100% weatherproof.