How Do I Shingle A Flat Roof

Roll out and cut a second.

How do i shingle a flat roof. On top of that many roofers prefer to use a roll out roofing system. Starting at the bottom of the roof map out a guideline with chalk. Different roofing materials require different slopes or pitches. 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.

A very important detail is where the flat roof is connecting the pitch roof. You should not shingle a flat roof. Installing flat roof shingles is a process that is complicated and should only be done by professionals. Weave and cut the valley on the highest side of the roof.

You want to lay the shingles from the bottom to the top of the valley. How to shingle a flat roof step 1. This latest project was in early december in lambeth ontario for a residential home that had an existing sloped or shingled roof that needed to tie into a ne. Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.

The minimum pitch required for shingles is 2 12 which means for every 12 inches the roof rises 2 inches. Measure the roof each way. Armourfix and armourvalley membranes must be installed and extended 60 90 cm up the main roof underneath the shingles in order to assure a waterproof connection. Most cities require a slight pitch for a shingled roof.

Start by overlapping a starter from both sides of the valley at the bottom. Understand that most contractors prefer using a roll out roofing as opposed to shingles when roofing low pitch. 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. Know that there are a number of cities that will allow for composition asphalt roof shingles at a two to 12.

Many pros shingle in a vertical line up the roof because it s much faster. The direct answer to this question is yes. Keep in mind that. Materials and installation 1.

Roll out a full length piece of underlay and cut it to length with a utility knife starting near one of the long. Then your first shingle goes on the side you are going to cut. Multiply the width by the length and divide the result by 100 to determine the number of. Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across.

Adding a pitch to a flat roof requires construction.