How To Lay Bitumen Corrugated Roof

Be sure before you fasten the roofing itself however that you lay down closure strips underneath where the screws will go.

How to lay bitumen corrugated roof.

The silicone will spread and adhere creating a seal. Btm corrubit installation video. Screw the new panel in place as described. Here i show you how easy it is to re roof a shed with onduline roofing.

Then attach the drip end flashings 8 to 12 inches apart. Place it at one bottom corner allowing an overhang of two inches on each edge. Ensure the sheets are positioned square to the line of the eaves and verge first nailing the sheet edges. Continue adding panels until the roof is covered.

Overhang the sheets at the fascia by 5cm to form a drip edge. Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses. Position and fix the verge barge board. After clearing the roof from dirt and obstruction it is time to put the roofing felt on the roof.

Seal the sides of the corrugated bitumen sheets with foam strips or spray foam. You can find the most recent onduline fixing guide on our website where you can save money on buy onduline roofing sheets http bi. Metal roofing is also available in the form of shingles. Trim any excess with shears.

Install the panel so that the short lip overlaps the large lip. Leave approximately 6 to 8 inches between nails. To install corrugated roofing start by cutting your panels to length with an angle grinder. Fitting sheets step 1.

Get help to lay the first sheet onto the roof. Reduce the fixing centre to the first purlin up. Use cap nails and hammer them attaching the nails on the felt and the concrete. Sorry for the old video.

You may need to cut panels to fit angles using a circular saw with a metal saw blade. Secure the edge of the sheet at the gutter end every second corrugation. Secure the sheets to the roof by using stainless steel fasteners. The corrugation should run up the roof toward the ridge.