Placing Shingles On Roof

That s also why building codes commonly limit re roofing to no more than two layers.

Placing shingles on roof.

Overlap each metal piece by at least 150 mm 6 and use asphalt plastic cement under each section of overlap. Installing roof shingles in 11 steps. It generally takes three bundles of shingles to cover 100 square feet. Place nails in the three tab shingles about 3 4 inch 1 8 centimeters above the cutouts near where the tab meets the upper part of the shingle.

See below for a shopping list tools and steps subscr. Preparing the roof 1. After completing a column the roofer can go back down to the eave edge of the roof and start laying the next column of shingles. Using the chalk line snap a line between the two marks to get a straight edge.

This will help determine how the shingles will lay on the. To start installing shingles line up aluminum drip edge flush with the edge of the roof and make a pencil line at the. Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across. What you need power nailer or roofing hatchet tape measure roofing shovel or flat pry bar hammer drill carpenter s square straight cut tin snips utility knife chalkline broom.

Remove old shingles and. Installing new roof shingles over old effectively doubles the weight of the roofing so you have to make sure your roof structure can handle the extra load. Measure the length of a shingle as it lies across the roof. Get the right number of shingles for the job.

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. Lay a starting row at the bottom of the roof along the edge. Starting at the bottom of the roof map out a guideline with chalk. This saves a lot of time moving shingle bundles and a lot of back strain.

Ask this old house general contractor tom silva reveals the best ways to secure shingles to a roof. Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.