Roofing Installation Procedure

Overlap each metal piece by at least 150 mm 6 and use asphalt plastic cement under each section of overlap.

Roofing installation procedure.

You put the string line in place to help keep your overhangs even around the edge of the roof. Start your metal roofing installation project by deciding which type of metal roof you want to have installed. For example if your roof measures 10 feet 3 0 m x 10 feet 3 0 m and the slope of the roof is 12 12 giving a slope factor of 12x12 12x12 12 converts to 1 414 in decimal form you would multiply 10 x 10 x 1 414 to get the total of 141 square feet of roofing. Measure the roof area.

Ice and water shield installation next step is installing ice and water shield which is a special type of roofing. Drip edge is a. 4 preparing the roof surface for shingles drip edge installation after wood decking is prepared we install drip edge at all edges of the roof. You or your contractor will then start by installing a string line at the base of the roof peak at the level that you want your overhang.

Arrange the shingles so the ends and the tab notches do not lie directly above gaps in the shingle below. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Remove the old roof. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

If the gaps lined up water could get directly onto the roof sheathing and then seep in through a nail hole. 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. You ll want to order metal panels that are an appropriate color and look to complement your. Most metal shingles will be attached to the roof using metal shingle.