How To Install Modified Roll Roofing

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

How to install modified roll roofing.

Install drip edge flashings roofing felt and wsu if needed. Clean and insulate the roof. Make sure the roofing is flat and free from creases and bubbles. Use a trowel to scoop up the roofing cement.

You can get roofing cement at the local hardware or building supplies store. Roll modified bitumen roofing sheets over the entire roof. Apply roofing cement to the roof. You may need to remove old flashings.

Repeat this with each roll until the roof is covered overlapping each sheet by about 3 8 in 0 95 cm. You can install roll roofing on your own but it goes more smoothly with a helper so grab a friend and get started. Remove all obstructions and sweep the roof clean of debris. How to do it.

Install drip edge and install 9 cant strips of roll roofing material along the rake and eaves edges gable ends and lower roof edge such that the roofing strip overhangs the roof deck by 1 4 to 3 8. Start at 1 end of the roof and unroll the bitumen to the other end. 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. Cut the roofing but still maintain the allowance you ve set for it.

You can install metal valley flashing but it is common to. Nail the roofing strips parallel to the roof edge set in 1 and 8 from the roof edge with nails spaced 4 o c. The term cold applied is referring to o. Cold process modified bitumen roll roofing is another way to apply rolled roofing other than hot mopping or torching.

Spread the roofing cement along the edges of your roof so it s about 1 8 1 4 inch 3 2 6 4 mm thick. There are three systems including glue down torch down and peel and stick. How to do it. Roll roofing is made from the same asphalt composition material as shingles and it s easier to install.

Bitumen roofing rolls can be large and heavy so get help carrying them up to the roof if necessary. Once you see bubbles forming gently roll the roofing forward with your foot to install.