Laying Shingles On An Attached Roof

The bottom row of shingles must hang past the edge of the roof.

Laying shingles on an attached roof.

Measure your roof so you can be sure you buy the right amount of shingles. You won t void your warranty by going with the racking method but with some manufacturers you d have trouble collecting a settlement on two specific problems. Most asphalt shingles are 3 feet 91 4 centimeters in length. It generally takes three packs of shingles to cover 100 square feet 9 29 square meters.

Cut the upper shingles so they fit snugly but do not ride up on the flashing s raised portion. 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. Multiply the width and length measurements together to determine the area. When you reach the peak either bring the ridge edges together with a ridge capping layer or cut regular shingles into 3 tabbed equal pieces and bend them so they fit on the roof peak.

Asphalt shingles have a nailing line a line of sealant material intended to bond with the next row of shingles. Both step shingling and racking will yield a watertight roof. The shingles on your roof serve a dual purpose. Roof shingles are not lying flat.

But you must take care to install shingles correctly so they lie flat. They give the roof a finished look while forming a protective seal. To lay out the design for the shingles begin at the bottom of the roof and place a tape measure inch from the edge of the roof to ensure the shingles overhang the drip edge. How to measure for roof shingles.

If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. Asphalt roofing felt paper and nail it in place using 1 inch galvanized roofing nails. If your roof s width is not an even multiple of the shingle s length you will have a partial piece on one end of each row. Continue laying your shingles horizontally up the roof.

At a minimum asphalt shingles can be attached with just four nails for each shingle but if installing in an area prone to high winds six nails should be used for each shingle. See below for a shopping list tools and steps subscr. Ask this old house general contractor tom silva reveals the best ways to secure shingles to a roof. Roof around the vent.

This will help determine how the shingles will lay on the roof width. Pattern curling and shadowing. Cover any exposed nailheads with dabs of roofing cement. Lumpy bumpy or curling shingles that do not.

Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. The shingles should lie flat at all points. Mark 12 inches up on the roof for the first course of shingles.