With the old beam uncovered the temporary beam can be placed on the braces you ve made images 1 and 2.
Patio roof support load bearing.
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.
For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.
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.
Move the braces into place on top of the bottle jacks image 3 then raise them till they support the roof.
Textured white non tapered square shaft load bearing endura aluminum empire style column.
Calculating the load on a flat roof is a challenging task for the layperson that involves knowledge of building materials their weights and local building codes.
Join the support beam and wood load bearing post by toenailing them together and attaching two metal t braces to opposite sides of the beam with galvanized 10d box nails.
This will hold the weight of the porch roof while replacing the beam.
The chain of load distribution begins at the roof covering material which exerts force on the cover s ceiling joists.