Loft Conversion Floor Strengthening

Joist cross bracing is used to elevate the floor above the existing insulation by 100mm.

Loft conversion floor strengthening.

You can do this by adding larger and stronger timber floor joists between the existing ceiling joists. In this video i show how i cut my my joists make packer plates get the joists from the garden up int. It also provides protection against stress on the ceilings beneath. The loft room will also have to be separated by a fire door either at the top or bottom of the new stairs.

Hi all i m in the planning process of starting a basic loft conversion in my flat which will be for used for storage and as a work area. This is part 2 in my series of loft conversion videos. If the attic joists are not adequate one way to strengthen the floor for live loads is to sister the old joists. The new floor joists of your loft conversion will need to offer at least 30 minutes worth of fire protection which could mean replastering the ceilings in those first floor rooms below.

The plan is just to put down some 18mm chipboard insulate the roof and board off the roof and eaves. This method ensures the thermal insulation level is maintained and your u value is not compromised. In the case of 2x6 joists you can pair them up with additional 2x6 joists by nailing them together side by side.