Loft Conversion Floor Strengthening

This method ensures the thermal insulation level is maintained and your u value is not compromised.

Loft conversion floor strengthening. It also provides protection against stress on the ceilings beneath. Joist cross bracing is used to elevate the floor above the existing insulation by 100mm. 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.

The plan is just to put down some 18mm chipboard insulate the roof and board off the roof and eaves. This is part 2 in my series of loft conversion videos. In this video i show how i cut my my joists make packer plates get the joists from the garden up int. 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.

Full length timbers are used for additional strength. If the attic joists are not adequate one way to strengthen the floor for live loads is to sister the old joists. In the case of 2x6 joists you can pair them up with additional 2x6 joists by nailing them together side by side.