Installing Bitumen Roofing

Use flashings approved by your building department.

Installing bitumen roofing.

Modified bitumen roofing may have a granular surface as shown here or it may be smooth. Run the tip of the flame along the crease between the roofing felt and the roofing roll. Center a minimum 610 mm 24 wide minimum 28 gauge pre finished galvanized metal valley liner in the valley and fasten with only enough nails to hold it in place nailing at the edges only. Get quotes book instantly.

Once you see bubbles forming gently roll the roofing forward with your foot to install. Start by laying asphalt felt or other underlayment over the roof. If you install the smooth product cover it with aluminum coating. Mark 12 inches up on the roof for the first course of shingles then mark every 5 inches all the way up the roof to set your reveal.

After attaching the felt to the roof use a primer to prepare the roofing. Make sure the roofing is flat and free from creases and bubbles. Using the chalk line snap a straight line on each 5 inch increment. Hire the best asphalt roofing installers in los angeles ca on homeadvisor.

Install a starter course by cutting off the three tabs on a shingle leaving only the top tar section. Do this on both sides of the roof. Overlap each row at least 3 to 4 inches. There are different primers available for sealing the concrete roofs.

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. Consult with your inspector to see whether you need to tear off the old roofing or if you can reroof over the existing roofing. Use the chalk line to snap a straight line vertically every 6 inches. Compare homeowner reviews from 9 top los angeles asphalt shingle roof install services.