How To Install A Modified Bitumen Flat Roof

A modified bitumen flat roof requires less maintenance as they can stand on their own for a long period of time.

How to install a modified bitumen flat roof.

Make sure the roofing is flat and free from creases and bubbles. Bitumen roofing rolls can be large and heavy so get help carrying them up to the roof if necessary. One of the longer lasting roofing options for flat roofs is bitumen roofing or a modified bitumen roof. Step 3 prime the roof.

If the surface is smooth you may be able to reroof using sheets of modified bitumen or epdm rubber roofing. Another good thing is that workers can easily reach the flat surface should there be a need to perform repairs. The granular surface is somewhat more expensive at installation but it is cost effective in the long run because it doesn t need periodic recoating. Flat roofs were once exclusively the province of professionals but new materials enable do it yourselfers to install flat roofs.

Modified bitumen is compatible with petroleum and so it is possible that it could be installed overtop of an existing tar roof unlike rubber flat roofing which would be eaten away modified bitumen roofing is also very rugged and can sustain a fair amount of foot traffic. Every roofing system has their own drawbacks. Repeat this with each roll until the roof is covered overlapping each sheet by about 3 8 in 0 95 cm. Disadvantages of modified bitumen.

Roll modified bitumen roofing sheets over the entire roof. Bitumen roof advantages and disadvantages. Get a sheet of bitumen roofing and roll it out allowing an extension beyond the perimeter of the roof. Modified bitumen flat roofing is a single ply system made of asphalt bitumen modified with polymers and reinforced with fiberglass and or polyester.

In the final phase of a modified bitumen roof an installer torch welds a granular surface membrane to an interply sheet or directly to a base sheet. After attaching the felt to the roof use a primer to prepare the roofing. Start at 1 end of the roof and unroll the bitumen to the other end. If your flat roof is covered with gravel you will likely need to hire a professional to reroof it.