The chain of load distribution begins at the roof covering material which exerts force on the cover s ceiling joists.
How to build a shed roof patio cover.
Make sure you remove the vegetation layer and even out the surface.
On a two story house you can usually tie the ledger into a band joist also called a rim joist located between the floors as shown below.
Therefore select the location and level the surface with attention.
Apply the 3 4 5 rule to each corners so you make sure they are square.
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Using corrugated metal also allows me to reduce the degree of slope or roof pitch needed to a mere 10 percent or a 1 to 10 pitch.
Because the gutter is removed you will need to install transfer flashing from the roof of the house to the patio.
This meant the patio cover could start at the edge of the house s roof at a height of eight feet and slope down to seven feet leaving a clearance of more than six and a half feet between the lowest part of the frame s headers and the ground at its outer edge.
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.
If attaching a patio roof to a ledger beneath the eaves does not allow for enough headroom you can set the new patio roof s rafters on the wall s top plate.
The basic idea behind the structural design of patio covers is to safely transfer weight from the top of the patio cover to the foundation.
Patio cover plans building.
The existing slab can vary considerably throwing off crucial measurements.
The first step of the project is to layout the patio cover posts.