How To Install Modified Bitumen Roofing

Get to know more about one of the most popular commercial roofing systems.

How to install modified bitumen roofing.

Modified bitumen sbs roofing systems. Use flashings approved by your building department. Modified bitumen flat roofs. 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.

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. Wear protective clothing prior to this procedure. Run the tip of the flame along the crease between the roofing felt and the roofing roll. No filters are available.

Cut the roofing but still maintain the allowance you ve set for it. Rollback the roofing again and switch on your propane torch. If you install the smooth product cover it with aluminum coating. Make sure the roofing is flat and free from creases and bubbles.

Get a sheet of bitumen roofing and roll it out allowing an extension beyond the perimeter of the roof. One of the biggest disadvantages however is that many major commercial roofing contractors have stopped installing them mostly due to the surge in popularity of tpo roofs. One of the primary benefits of using a modified bitumen roof is that it comes at a lower cost to install. Align the next sheet of modified bitumen roofing so it covers the edge of the first sheet by a few inches and repeat the process.

As an experienced licensed home improvement contractor i know first hand what it should cost for various levels from basic better and of course the best. Modified bitumen roofing may have a granular surface as shown here or it may be smooth. Repeat this with each roll until the roof is covered overlapping each sheet by about 3 8 in 0 95 cm. If you re looking for 2020 breakdown for cost of modified bitumen roof materials and what installation cost might be you ve come to the right place.

Bitumen roofing rolls can be large and heavy so get help carrying them up to the roof if necessary. Start at 1 end of the roof and unroll the bitumen to the other end. Roll modified bitumen roofing sheets over the entire roof. Learn about modified bitumen sbs roofing systems.

Once you see bubbles forming gently roll the roofing forward with your foot to install. Step 4 heat the roof.