How To Shingle A Deck Roof

Do not fasten the flashing piece to the vertical wall.

How to shingle a deck roof.

Install the purlin along the house and the outer purlin. Once this course is laid you can begin snapping horizontal chalk lines up the roof to ensure straight rows. If the span under your deck is 12 ft for example the purlin at the outer end of the deck should be 3 in. Porch decks require 25 additional psf for roof loads for a total of 80 psf.

This significantly sloped deck roof allows for proper drainage of rain and snow as opposed to a flat roof. Also place the nails high so the next course of shingles will cover them. Typical decks are designed to support 55 psf lbs per square foot. Once the kick flashing and first piece of step flashing are secure you have to apply a shingle.

The most common type of deck roof the gable roof forms a triangular shape projects along a ridge down the center of the deck and overhangs the enclosed space. Secure the horizontal flange to the roof deck using two nails. Then run joists connecting the front of your roof with the rear every two feet along the length of your roof. Use roofing cement and two nails to secure it to the roof deck.

A gable roof also blends in well with many types of. Butt a full shingle up against the cut shingle and nail into place. If your eave is one straight length then pick an end and work to the other. Use four roofing nails per shingle as indicated on package instructions six nails in high wind areas.

First mark all the purlin locations on the deck joists. Tear off the old shingles. Repeat this basic pattern alternating shingles across the roof working toward the right side using the chalk line to keep the shingles straight horizontally. Frame up a box the size of the outer dimensions of your deck using 2 by 4 inch lumber.

As a result most decks have inadequate footings to support a new porch roof. Make sure to expose 5 in. Of the shingle tabs where the bottom edge of the tab meets the top of the cutout. The footings for porch decks must be larger than deck footings.

Lower than the purlin along the house 12 x 1 4 3. Build the frame of the roof on the ground. Use 4 nails per shingle and 6 nails on the prevailing windward sides of the roof as wind resistance nailing. Place it so the tab of the end shingle covers it completely.

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 and one in the front. This will allow the flashing piece to move independently of any differential expansion and contraction that may occur between the roof deck and the wall.