Flat Roof Patio Framing

This is a completion video of a flat roof framing.

Flat roof patio framing.

Patio cover plans building. The figures are based on quality materials. To keep water from pooling at these inside corners tom rips 2x4s lengthwise on a 45 degree bevel with a table saw. Flat roofs are always built at a slight incline at least 1 8 inch per foot.

Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board. A timber framed patio roof is perfect for your rustic or country home. When you are building a patio cover off of an existing roof or wall you must take all of your measurements from the point at which the patio roof will attach to the existing structure not the outside of the slab. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot.

Some roofs actually slope in several directions ensuring optimal water runoff. This is a completion video of a flat roof framing. These patio covers tend to look like an extension of the home s main structure. These decks are often referred to as floating as they are not secured in place as a stand alone structure.

Building a deck over a flat roof is very similar to building a deck over a concrete patio. The roofing material is more traditional such as shingles. From there the flat roof system you choose will determine the materials you apply. Here the rubber roof will need to run up the walls and glue to the sheathing.

When framing a flat roof you will need to create a slight incline. These traditionally styled roofs are made of wood and feature large supportive beams. Put a cement footing at each corner of the intended patio roof space and attach anchors to each footing. You can do this with a foam layer that exactly fits your roof.

First you must make sure the roof is strong enough to support 55 lbs per square foot. Take four pieces of 4x4 lumber and cut them to the desired height of your patio cover keeping in mind that the footings will add a little extra height to the final product. On two sides the roof abuts a parapet a short wall common around flat roofs as well as a wall for the third floor. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.

The existing slab can vary considerably throwing off crucial measurements.