Either way they are put in to lend support to weakening walls and floors.
Do i need to reinforce my loft floor.
Floor raising strengthening if you are thinking of using your loft for heavy items then it may be the case that your floor will need reinforcing or strengthening.
Floor joists can be found under the house for example in the crawl space.
If your home wasn t designed to support a future attic conversion not only will the joist system require modification an engineer may require additional vertical reinforcement installed in the.
The loft room will also have to be separated by a fire door either at the top or bottom of the new stairs.
You may need to reinforce your floor joists if you have saggy floors in your house.
Floor joists will help to bring up walls that seem to be falling in.
Ive just strengthened my loft floor.
While not the ultimate voice in spans these calculators do provide a reality check.
If you re not confident get an electrician to do the electrics.
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.
You can still board directly on to the joists if you want but it is worth noting that this would not pass a building control inspection because you wouldn t have the full 270mm depth of insulation required by regulations.
For example with such a calculator you will find that for a 15 foot span you need 2x10 douglas fir heart joists spaced every 16 inches.
They can even be found in the basements of homes.
I ve not gone down the regulations route as it s not going to be used as a bedroom.
The best solution is to build a raised loft floor above the insulation details of which are shown below.
Furthermore squashing insulation down to fit joist height is a bad idea as this halves it s effectiveness doubling your heat loss.