Unless your roof is tiny you re going to want to get your hands on a pneumatic roofing nailer.
How to do your own roof.
Center starter course on the roof s centerline.
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Some roofers are so busy during the summer that they are happy to have you do some of this work.
With roofing talk with your roofing pro to see if he will allow you to tear out the old roof for a discount.
Trim tabs off roof shingles to create starter course.
Remove the metal flashing around chimneys vents and valleys in the roof and sweep the roof when you re finished.
After all it keeps water out of the building.
Pry up the nails and frequently stop to shovel the old tiles into a large trash container.
If the gaps lined up water could get directly onto the roof sheathing and then seep in through a nail hole.
On dec 17 2019.
If your roof is in good shape but has some damage to one side from a downed tree or has lost shingles in a wind storm an overlay is worth considering.
The roof is arguably the most important component of your house.
Allow the shingles to overhang drip edge by inch then nail them in place.
Prices range from 100 to 300.
Nail drip edge flashing to lower edge of roof.
If you need to re roof your house put on slip resistant shoes and a safety harness and start removing the tiles from your roof.
Snap vertical chalk line down center of roof.
Arrange the shingles so the ends and the tab notches do not lie directly above gaps in the shingle below.
A compressor rents for about the same as the nailer.
Install shingles from the lower left corner working to the right and also working up the roof slope.
Renting one costs about 35 a day or 90 a week so if you own a compressor you might as well buy rather than rent.
Stripping away the old roof more expensive because of the additional labor and materials peeling off the old roof down to the sheathing is your only option if you already have two layers.