How To Build A Pitched Roof Over A Porch

On the header side the rafters are typically notched with a birdsmouth over the top of the header or top plate of the porch wall.

How to build a pitched roof over a porch.

Minimum roof pitch for a covered porch. Maximum rafter spans for a patio roof. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. The angles you cut the rafter ends determine the pitch of the roof and the length of the rafters.

For heavy roofs or in. I show how i construct it showning in detail how to do the lead flashing. Nail the first boards on top of your wall where you plan to build your roof. Install the fascia board on this frame and nail it accurately.

Use plywood to insulate your porch roof. Use a speed square to mark and cut your rafter angle to the roof pitch. Do not attach the header directly to a house cantilever. Collar ties are horizontal braces that can be installed between opposite rafters to add strength and lateral stability.

Use 8 penny nails to attach the first 2 in 4 in 5 1 cm 10 2 cm board to the wall studs. The rafter pitch angle. Together the beams will make a frame. This board will support the rafters.

This is part two of the porch build where i am doing the roof. This article discusses strategies for building over an existing slab patio or over a deck and offers links to articles about the specific tasks such as pouring the footings raising posts and so forth. Porch roof construction includes not only porch roof construction types and designs but also the selection of materials and considerations you ll need to build your roof. An essential part of planning a patio roof or gazebo project is determining the number size and spacing of rafters beams and posts according to the loads they will carry.

Adding a covered porch adds exterior space to a house and providing a. Start here if you re building a roof over a patio or deck. Nail 2 boards onto your walls as top plates. Attach the header to the support post next to the house.

Flash and bolt the ledger board in place to the house wall. From gable and shed roofs to hip and flat our information about how to build a porch roof will make the job easy. A roof protects a house and porch from snow and rain as well as the heat of the sun.