How To Jack Up A House Roof

Learn the proper way to install temporary support posts and jack up a sinking house.

How to jack up a house roof.

Jack the beam up slowly so that it can gradually shift and readjust until level again. Roof jacks provide a stable surface to work increasing safety and making it easier to apply roofing. The structure may not be as you expect and you may cause more problems. Drive the remaining carriage bolts into the two by six rafter and tighten them all up.

Screw a 2x4 about 12 long. We used 18 000 pound screw jacks 4x4 lumber a circular saw power drill driver and cement blocks. Use the other nonsagging beams as your ideal so that you can bring all of the house s beams back into a level arrangement. Check the ceiling for sagging by attaching a string on one end of the beam and run it along the.

Consult a qualified structural engineer first. After your floor is straight it is time to concentrate on the next floor s ceiling. The first step is to the basement first. You can usually feel sheathing nails which are driven into rafters through the underlayment attach a jack by driving two 16d nails never roofing nails into a rafter.

This job took two people one afternoon. So to begin i removed the existing counter flashing running about 5 courses up this was as easy as finding nails and prying. Cost time and skills. You can rent heavy duty jacks but a rented hydraulic jack would be underneath the house for a very long time running up charges so you d be better off owning them.

Ideally locate a rafter below the sheathing. More precisely it will never even begin to lift. In raising the roof i knew was going to have to reset the roof s flashing as it meets a sidewall of the house. In any case you would want at least 20 ton jacks and 40 ton is better.

Jacking a house typically is done with screw jacks and a lot of them. Total cost was less than 200 while a pro would charge 500 1000. Then lower the jack down a little at a time so that the metal can take the weight of the roof. Place the jack back underneath the beam but this time under the iron piece.

How to fix a sagging roof line. When you know where the lowest portion of the. Remove the jack quickly and set the iron onto the entire beam. Determine how far the middle of the house needs to be lifted.

Place the jack beneath the sinking beam. We got muddy because we were in a dirt crawlspace doing just that crawling. Things to consider with jack up a porch roof the prep. This is a great way to correct problems before installing a permanent so.