How To Install Modified Bitumen Roofing

Step 4 heat the roof.

How to install modified bitumen roofing.

Cut the roofing but still maintain the allowance you ve set for it. 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 membranes appeared first in europe in the mid 60s and since have been used in the us and canada since the mid 70s. Get to know more about one of the most popular commercial roofing systems.

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. Modified bitumen roofing may have a granular surface as shown here or it may be smooth. Roll modified bitumen roofing sheets over the entire roof. Use flashings approved by your building department.

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. 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. Wear protective clothing prior to this procedure. Get a sheet of bitumen roofing and roll it out allowing an extension beyond the perimeter of the roof.

Modified bitumen mb roofing is an asphalt based roofing system similar to built up roofing bur designed for structures with low slope roofs. One of the primary benefits of using a modified bitumen roof is that it comes at a lower cost to install. Bitumen roofing rolls can be large and heavy so get help carrying them up to the roof if necessary. 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.

Once you see bubbles forming gently roll the roofing forward with your foot to install. Learn about modified bitumen sbs roofing systems. These steps show a torch down method which looks a bit scary but actually is not too difficult. Make sure the roofing is flat and free from creases and bubbles.

Run the tip of the flame along the crease between the roofing felt and the roofing roll. Rollback the roofing again and switch on your propane torch. Repeat this with each roll until the roof is covered overlapping each sheet by about 3 8 in 0 95 cm. No filters are available.

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.