How To Lay Bitumen Roof

Unroll the roofing and cut a strip to the length necessary for your roof.

How to lay bitumen roof.

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. Overlap each row at least 3 to 4 inches. Cut a half tab off for your first course shingles cut off a full tab for your second course shingles cut one and a half tabs off of your third course shingles cut two tabs off your fourth course shingles for your fifth course cut off half of the final tab keep your sixth course tabs intact. Start by laying asphalt felt or other underlayment over the roof.

Get a sheet of bitumen roofing and roll it out allowing an extension beyond the perimeter of the roof. A bit of melted bitumen should ooze out along the joint. Nail the roofing strips parallel to the roof edge set in 1 and 8 from the roof edge with nails spaced 4 o c. Bitumen roofing rolls can be large and heavy so get help carrying them up to the roof if necessary.

If you live in an area with inclement weather you should consider using a special ice and water protector. Using your staple gun secure the felt to the roof. Place the first strip over the starter strips but don t overlap the roof edge. 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.

See below for a shopping list tools and steps subscr. Use your foot and gloved hand to press the seam between the two sheets ensuring a tight seal. Clean and insulate the roof. Remove all obstructions and sweep the roof clean of debris.

You may need to remove old flashings. Make sure the roofing is flat and free from creases and bubbles. When it s positioned properly nail the roofing down with galvanized roofing nails every four inches along the top and bottom edges. Start at 1 end of the roof and unroll the bitumen to the other end.

After attaching the felt to the roof use a primer to prepare the roofing. Repeat this with each roll until the roof is covered overlapping each sheet by about 3 8 in 0 95 cm. How to do it. Prepare roof edges cant strips.

Ask this old house general contractor tom silva reveals the best ways to secure shingles to a roof. There are different primers available for sealing the concrete roofs. Let the sheets overhang the roof s edges by at least 2 in 5 1 cm.