How To Lay Bitumen Roof Sheets

If you ve got a pergola attached to your house then you might want to give yourself some extra shelter and protection from the weather simply by installing.

How to lay bitumen roof sheets. Lay the panels on the ground the way you want them to be on the roof. Seal the sides of the corrugated bitumen sheets with foam strips or spray foam. The sheets cannot make a tight turn so there should be flashing or built up roofing in the corners so the roofing can make a gentle sweeping turn upward. Follow manufacturer s instructions for the sealant application.

Position and fix an additional purlin at the ridge to take ridge fixings. Once you see bubbles forming gently roll the roofing forward with your foot to install. Run the tip of the flame along the crease between the roofing felt and the roofing roll. Secure the edge of the sheet at the gutter end every second corrugation.

This forms a broken bond sheet pattern thus avoiding a 4 ply sheet thickness build up at the corners of sheets. This helps in setting up the lap of the panels. Secure the sheets to the roof by using stainless steel fasteners. 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.

Make sure you space these fasteners every three to four corrugations. Install a corrugated roofing wall connector panel to a wall with roofing sealant when installing panels for a patio cover. Seal the top of the roofing completely. Trim any excess with shears.

Start alternate courses of sheets with a half width sheet. Lay the individual sheets across the roof joists or cross beams.