Inspect the underlying roof sheathing for damage and make any needed repairs.
How to start a roof.
Also place a nail 2 inches from each end of the shingle in line with the other.
Not only are we working from the bottom of the roof we re also starting with the bottom most layer in terms of roofing components.
Start from the top of the roof and remove the old shingles along with the flashing underlayment and vents.
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.
Some roofers install shingles so the cutout lines describe a slight angle as you look from the bottom to the top of the roof.
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Use a roofing nail 1 to tack the drip edge down one every 10 when placing two pieces of drip edge together overlap one end over the other by 1 and secure using two roofing nails one in the back.
This step by step tutorial shows how to install 3 tab roof shingles using the racking method.
Ask this old house general contractor tom silva reveals the best ways to secure shingles to a roof.
Hammer down any large nails that are exposed by the removal.
However make sure that you do not nail into the tar strip.
Lay a starting row at the bottom of the roof along the edge.
However most people prefer the cutout lines to be aligned so they make straight vertical lines.
The asphalt roof shingles are the visible part and the first line of defense against inclement weather but what s underneath them really counts the first material installed at the eave is the drip edge.
If your eave is one straight length then pick an end and work to the other.
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.
Start by applying the drip edge to the eaves of your roof.