Installing Bitumen Roofing

Get a sheet of bitumen roofing and roll it out allowing an extension beyond the perimeter of the roof.

Installing bitumen roofing.

Get quotes book instantly. Install a starter course by cutting off the three tabs on a shingle leaving only the top tar section. Modified bitumen roofing may have a granular surface as shown here or it may be smooth. Overlap each row at least 3 to 4 inches.

Start by laying asphalt felt or other underlayment over the roof. There are different primers available for sealing the concrete roofs. Use flashings approved by your building department. Hire the best asphalt roofing installers in los angeles ca on homeadvisor.

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. Using the chalk line snap a straight line on each 5 inch increment. Run the tip of the flame along the crease between the roofing felt and the roofing roll. 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.

Consult with your inspector to see whether you need to tear off the old roofing or if you can reroof over the existing roofing. Make sure the roofing is flat and free from creases and bubbles. Once you see bubbles forming gently roll the roofing forward with your foot to install. 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.

Use the chalk line to snap a straight line vertically every 6 inches. Overlap each metal piece by at least 150 mm 6 and use asphalt plastic cement under each section of overlap. Compare homeowner reviews from 9 top los angeles asphalt shingle roof install services. Do this on both sides of the roof.