First it’s time to dispel a myth . It’s perfectly fine to roll rubber roofing over an existing roof. After all, it saves time from removing the old roof. And in areas where the old is intact there’s double protection. Wrong! Whatever the other reasons, no roofing manufacturer will honor a warranty that has not been installed on a completely clean surface. So get ready for that removal. It’s step one.
Rubber roofs can be easy to self install. They come in a variety of styles of both rolls and shingles. It is an ideal material for large flat roofs that will last for years and won’t split or crack. It experiences less stress than other material shingles because it expands and contracts with the roof in response to weather changes. In fact the 1st rubber roof, which was installed in Wisconsin in 1980, is still in perfect condition after nearly three decades of service.
Adhesive is used to attach both roll and shingle rubber roofing to the roof. Ensure that the surface is as clean as possible with nothing sticking up which could pierce the rubber. It must be dry and free of oils or dirt. So make sure to blow or sweep away and dirt.
When the base is clean, the rubber roof should be rolled out onto the area being covered, and cut to fit over vents and pipes. It’s a mistake to apply adhesive before the it is cut and shaped. Think about it, you’ll understand why. When the roof is cut and fit then roll back about half to apply the adhesive. Apply it evenly with a roller, then give it time to become tacky.
The roofing will be nearly impossible to lift once it’s stuck. So once the adhesive has set carefully roll it into place. The first half will have to dry for about an hour before the second half can be secured.
The home or building now has a rubber roof. Wow.