How To Slope An Existing Flat Roof

Eventually water penetrates the building.

How to slope an existing flat roof.

Once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing. Slopes above 3 inches fall to 12 inches run can use shingles. Anchor the wall to the existing roof deck. Scrape the surface of the roof with a flat shovel ice pick or similar tool.

Use your hands to peel materials off the the surface of the roof. The 8 step process for diy installation. Remove all of the old roofing materials including any plywood covering under the roofing materials. 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.

Water that stays on a flat roof after it rains will weaken the material over time. Just make these tapered cuts so that the minimum thickness is approximately 1. Just rib out the osb rip some lengths of spruce 2x4 or 2x6 to give you the slope you want. Flat roofing systems come with benefits and drawbacks.

Most people view pitching a flat roof as a tedious job. This solution is perfect for homeowners looking for the easy option for adding slope to a flat roof property. The slope conversion process is accomplished by installing a light gauge steel sub framing system. The wood frame of the roof needs to be completely exposed and clean.

This system is designed to collect the required design loads and transfer them to the existing structure. Add slope to the flat roof. 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. Various styles of a pitched roof can be built or you can purchase pre manufactured trusses.

You will need to ensure that you are in standards with your local building codes and have the permits required. Unlike sloped roofs flat roofs are susceptible to ponding water. One important and perhaps not so obvious fact is that a flat roof is not actually flat. When it comes to the disadvantages some property owners are being pestered by leaks.

Roofs with a slope of 1 to 3 inches of fall to 12 inches of run should use rolled roofing.