Reinforcing Attic Floor Joists

Add a joist at 12 o c.

Reinforcing attic floor joists. In my 80 year old house the attic had 2x6 floor joists about 16 oc. I went to get a permit from the city to finish the attic and they said i needed to reinforce the floor since for a live load it was not strong enough for our span below about 12. This is a great answer. Section r502 10 of the international residential code states that header joists can be the same size as the floor joists when the header joist span isn t greater than 4 feet but if the header joist span is more than 4 feet you ll need to double the header joist and ensure that it s capable of.

There is a 1 2 plywood sub floor on top of the joists. Additional support for the floor joists is achieved by nailing the ends of the joists into headers. How to reinforce an attic floor with sister joists. And add blocking between joists at the thirds.

Each joist is connected by a vertical 2x4 to the roof rafter above it positioned about 4 from the wall. Use simpson joist hangers at all of the joist stud connections. An attached garage with 2x6 attic joists and 2x6 roof rafters. Clear the joist spaces.

The problem is the ceiling under the area decked in the attic is cracking now that my wife and i are storing things up there. I want to finish this space with drywall walls. Ideas on reinforcing attic joists. Perhaps by adding vertical or diagonal leg components from the rafters to the 1 4 point of the ceiling floor span.

You can reinforce part of the floor as long as you. There still will be some deflection but should be greatly reduced. Hello i recently purchased a 1950 s ranch home which has an attic ladder installed for attic storage by some previous owner. Double up on the strapping underside of joists or sheet with plywood.

How to reinforce 2 6 ceiling joists to handle heavy loads. The joists span 20 and are 16 on center. Pull out all insulation and any debris from all of the joist spaces so you can see the full length of each joist including where it meets the exterior walls. I d be prone to looking at creating a truss involving the ceiling floor joists and the roof rafters.

Glue and screw the added middle joist to the subfloor.