While many like to use.
Support porch roof temporarily.
Determine how much support is needed your porch roof will need to have a lot of support in order for it to stay.
Set firm footing the temporary support that you use will need to have a firm footing in order to hold up the weight.
For larger applications like supporting floor joists in the basement 4 x 4 posts should be set at 6 foot intervals.
Things you ll need tape measure spade large wooden stakes mallet 2x6 boards about 30 percent longer than the height of your porch eaves enough of them to put two every five feet around.
Cut beams to.
Bird mouth the top cut and dig a small kicker in at the bottom of course i ll usually have post jacks in place somewhere so i can slightly jack up the roof to release the column.
Stakes go down about 18 to 24.
For a 20 foot porch roof you will then need to have five different temporary supports.
You need to shore right against the wall to putt the load into the chord intersections where the truss is designed to be load bearing.
Without a picture i m guessing but it would be best to put a temporary beam under the roof side to side and adequate temporary support columns under the ends of the beam with some diagonal bracing.
If you are thinking about replacing old rotted porch posts the first thing you ll need to know is how to jack up and support the roof structure properly and.
Tri square pencil circular saw 2 inch wood screws 3 inch wood screws drill gun an assistant.
Measure for posts large 8 x 8 posts are necessary for the use of supporting a porch roof.
Temporarily supporting porch roof i ve seen idiots try to jack things up with a bottle jack and 2 2x6s nailed together like a double and that post will bend i ve shown them a 2x4 t post and it lifted the load no problem.
Temporarily supporting porch roof i usually slam two 2x6 s together in a sandwich and pepper them with nails.
Temporary support for roof creating a point of support a foot or two back on the bottom chord of a truss is not going to do you any good and may do you harm.