Slowly raise the jack until the top of the boards come into contact with the bottom of the roof.
How posts to support a roof.
Continuous posts from the roof to the footing transfers the roof load to the ground rather than the deck this only makes sense and then the deck itself should be supported on a beam by separate posts.
Determine how much support is needed.
For a house attached overhead measure cut and erect the posts that are farthest from the house first.
Removing the old porch column if your column is attached to a railing system you will need to detach the rail from the column to proceed.
These will be reference points for the installation of the new column.
This will support this.
Porch decks also require larger footings than deck footings.
Your porch roof will need to have a lot of support in order for it to stay up through the seasons.
The main structural members of patio and deck overheads are posts or columns and beams which run from post to post or from post to ledger.
The beams support the roof rafters or joists which in turn hold the roofing material.
For a freestanding roof begin with the corners and then erect all of the intermediate posts.
They should be at least 101 inches long.
Minimum sizes of posts and beams are set by engineering requirements and are strictly governed by local building codes.
Cut beams to fit.
Continue installing porch.
Leave extra length to be sure you have enough.
Stand the nailed 2 by 4s on end on top of the jack with an assistant s help.
For a roof six foot five inches your posts should be six feet five inches plus the 24 inches of the post that will be planted.
After the temporary roof support is in place use the chalk to mark the footing of the column as well as where it attaches to the roof.
How to support a porch roof.
This post and beam design is secured with a post cap.
For deck roof posts dig holes for the roof posts and pour cement to keep them secure.