Proper Pitch On A Covered Patio Roof

Flat and nearly flat roofs a pitch of 1 in 12 or 2 in 12 cannot be covered with shingles or shakes of any material since there is not enough angle to combat the danger of blow off.

Proper pitch on a covered patio roof.

This is a two percent drop and it is the ideal slope for a patio to effectively drain away from your home. How roof pitch determines suitable roofing systems. The minimum roof pitch is also subject to the standards set forth by the various building codes used in the respective regions. When they are installed you can begin attaching roofing shingles.

If it is not possible to match the existing roof choose a pitch that is shallower. The irc recommends a minimum design load of 10 pounds per square foot in addition to all dead loads except where this minimum is exceeded by local snow or wind load requirements. The minimum pitch for shingles is 1 6 which is equivalent to 4. Match the roofing on the covered porch with the main roof.

If you are considering installing a patio cover or aluminum awning you will want to have a minimum of slope per foot projection. If you are going to use shingles to cover the patio roof do not forget to install black roofing felt along with a single layer of oriented strand board. Importance of a roof pitch. When all the rafters are installed correctly form your patio roof by attaching the planks horizontally across the rafters.

This allows for your patio cover to have proper drainage. Patio cover roofs must conform to the local building code including how they are attached to the building. This means that the side furthest from your house will be five inches lower than your house. Residential roofing with different pitches does not appear cohesive.

For example if the patio is 20 feet in length the slope should be five inches. I ve seen 1 8 1 4 but thought 1 2 3 4 was a lot. Buddy of mine had a stone patio put in last friday and the contractor pitched the patio 1 2 3 4 per foot. He s not happy with the slope and asked what the norm was.

The chief reason for having a roof pitch is to redirect water and snow away from the roof and avoid any percolation that might result from stagnation of water on the roof. Slope of a patio cover can also be adjusted for a larger slope if you are following your roofline for example. The pitch of the covered porch roof should match that of the main roof.