How To Slope An Existing Flat Roof

Most people view pitching a flat roof as a tedious job.

How to slope an existing flat roof.

Scrape the surface of the roof with a flat shovel ice pick or similar tool. The slope conversion process is accomplished by installing a light gauge steel sub framing system. Eventually water penetrates the building. Remove all of the old roofing materials including any plywood covering under the roofing materials.

Various styles of a pitched roof can be built or you can purchase pre manufactured trusses. Flat roofing systems come with benefits and drawbacks. The flat roof already has a slight pitch as it is required by law. Unlike sloped roofs flat roofs are susceptible to ponding water.

The 8 step process for diy installation. Nail and construction adhesive glue them to the tops of the existing joists and then put new a new subfloor and a rolled asphalt roof on top. You will need to ensure that you are in standards with your local building codes and have the permits required. Slopes above 3 inches fall to 12 inches run can use shingles.

Roofs with a slope of 1 to 3 inches of fall to 12 inches of run should use rolled roofing. One important and perhaps not so obvious fact is that a flat roof is not actually flat. This system is designed to collect the required design loads and transfer them to the existing structure. Using modern cement screed mixes a professional flat roofer can fill dips and hollows quickly and level them or slope them rather to fill the low point and re create the surface of your roof.

Just make these tapered cuts so that the minimum thickness is approximately 1. Anchor the wall to the existing roof deck. That would be. Once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing.

Water that stays on a flat roof after it rains will weaken the material over time. Build a stud frame wall at the high end of the proposed roof structure. When it comes to the disadvantages some property owners are being pestered by leaks. Add slope to the flat roof.

The wood frame of the roof needs to be completely exposed and clean.