The new section of timber is now put in place with the threaded steel bars sitting in the slot.
Fixing flat roof joists.
To replace the joist you need to measure the entire length.
It could be more to make sure you get adequate water run off 1 40.
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.
They have the advantage that joists are extended back into or onto the original bearing.
Set out the ceiling.
A cavity closer should be provided to the top of the walls to prevent fire spread and to stop damp air entering the roof space.
This is a long video but it will show you how to do it.
Fix a ledger to the house wall.
These come as a pair of l shaped metal plates complete with screws and instructions.
How to remove repair and install a flat roof.
Squaring and fixing the wall plates to the brickwork.
If extra weight is the problem additional joists or rafters can be added to shore.
Fixing joists to an existing wall.
Make sure you offset yo.
And tie it into your hip roof.
If the wall plate of the flat roof is level with the wall plate of the existing house can you make the two wall.
The easiest way to repair joist ends is to fit joist repair plates.
First work your way along the brickwork and clear any snots off.
When it comes to flat roof repair options simple patch repairs for flat roofs such as those on garages or extensions can cost a few hundred pounds.
Fitting roofing wall plates top plates setting out squaring levelling and fixing strapping gable and hip roof wall plates for rafters joists and roof.
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.
Slot cut out in existing timber.
Keep in mind that the joist extends through the wall.
However replacing the entire joist gives the home much better structural integrity.