Installing Shingles On A Flat Roof

Ask this old house general contractor tom silva reveals the best ways to secure shingles to a roof.

Installing shingles on a flat roof.

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. Using your staple gun secure the felt to the roof. Most asphalt shingles are 3 feet 91 4 centimeters in length. Overlap each metal piece by at least 150 mm 6 and use asphalt plastic cement under each section of overlap.

How to do it prep work space. Many pros shingle in a vertical line up the roof because it s much faster. If possible have the shingles delivered via a boom directly onto the roof. Watch and see how easy it is.

Handy home shows you universal shingling techniques that can be applied to any shed. How to shingle a flat roof step 1. Overlap each row at least 3 to 4 inches. On buildings with flat roofs shingles should be replaced with a roofing material that provides protection from water intrusion.

Know that there are a number of cities that will allow for composition asphalt roof shingles at a two to 12. Snap horizontal chalklines to help you keep the courses straight. First snap a line for the top of the. Known in the trade as vertical racking or staggering this how to lay shingles method enables the roofer to install a single column of shingles all the way to the peak without the wasted back and forth motion necessary to fill several rows of stair steps.

This will help determine how the shingles will lay on the roof width. The minimum pitch required for shingles is 2 12 which means for every 12 inches the roof rises 2 inches. Shingling a shed and want some tips. Install new flashing metal.

Wood and composition shingles are intended for use on pitched roofs. Understand that most contractors prefer using a roll out roofing as opposed to shingles when roofing low pitch. You should not shingle a flat roof. If you live in an area with inclement weather you should consider using a special ice and water protector.

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. Any slope that has a pitch less than 2 12 is too flat for shingles and should be covered with flat roof materials such as tpo pvc epdm rubber or others. See below for a shopping list tools and steps subscr. Start by laying asphalt felt or other underlayment over the roof.

Install a starter strip.