Floor Joist Repair Sistering

This solution provides your home with increased stability and will restore structural integrity to floor joists that have been damaged by moisture.

Floor joist repair sistering.

Space the loops of the s about 6 to 8 inches apart. Consider how weakened or damaged the joists are and also whether a weight above them could be causing the joists to fail. Driving 16d common nails in old hard wood is difficult. Step 1 evaluate your situation.

The adhesive strengthens the bond between the existing. If there was water damage make sure that whatever leaky pipe or condensation issue caused the rot is fixed. Sister joist correcting a problem joist is an easy repair and is usually accomplished by fastening a new joist next to a damaged floor joist doubling the thickness of the framing member. Apply a bead of construction adhesive in an s pattern along the length of a joist.

Essentially sliding a whole member beside it and nail the heck out of it from both sides with a lot of nails. If the new sister bears on wood at least 1 5 on each end then you re good to go. This is referred to as sistering the plan was to sister a new joist next to the old one. When the sagging joists are level apply a generous bead of construction adhesive to the existing joist.

The most common way joists are repaired is to sister it up. Then attach the sister joist using three 16d common nails driven every 16 in. But it s usually best to run the sister joist over the entire span. Most often floor joists need to be sistered because of two problems either water damage which leads to rot or termite damage that crumbled the joist.

These problems must be addressed firsthand prior to implementing any restoration steps. This board is called a sister board and the whole process is. Sistering joists if your home s structure needs some additional support the best solution may be to double down on the joists meaning we will add sistering joists to the structure.