How To Fix Flat Roof Joists

The new section of timber is now put in place with the threaded steel bars sitting in the slot.

How to fix flat roof joists.

It could be more to make sure you get adequate water run off 1 40. Fix the reinforcement board plate on one side of the joist with the help of long wood screws. To do this you will need to cut a slot into the existing truss rafter or joist in a u shape to the required length of the threaded steel bars in the new section of timber. Keep in mind that the joist extends through the wall.

Where a new flat roof abuts an existing external wall the joists can be hung on metal joist hangers which are fixed to a horizontal timber plate wall bolted to the wall. Measure and mark the joists at each end of the roof about 4 feet in from the edge. Lay your chalk line across your two pencil marks and snap a line across all of the joists in between. To repair a roof joist you will need to either replace the entire joist or use a spliced in piece of wood.

If the wall plate of the flat roof is level with the wall plate of the existing house can you make the two wall. To replace the joist you need to measure the entire length. Drill holes for fixing the screws. It can enhance the damage.

Fix a ledger to the house wall. Slot cut out in existing timber. Do not use nails and avoid hammering the joist. Measure and cut 2 by 4 inch lumber to fit the gaps between each set of joists.

Do this with an expanding anchor bolt or other appropriate masonry fixing.