This could be a hip to gable loft conversion or a mansard conversion for example.
Loft conversion how to strengthen floor.
However the average dormer loft conversion with a double bedroom and en suite costs about 35 000 45 000.
The loftman company is among the longest established companies in this industry and regarded as the leading loft specialist in the u k the loftman company is a midland based family run business with twenty five years in the making.
Sistering is the process of adding a new joist next to each existing joist.
The plan is just to put down some 18mm chipboard insulate the roof and board off the roof and eaves.
If the attic joists are not adequate one way to strengthen the floor for live loads is to sister the old joists.
This option is the most expensive as it requires the complex removal and rebuild of the existing roof.
A basic floor system is installed in about 10 stages from preparation to boarding the floor.
With energy efficiency standards being increased loft conversion insulation is more difficult to install than it once was.
Changing the roof structure for a loft conversion.
If you are replacing the roof tiles at the same time you can insulate between the covering and the rafters which will also achieve good airtightness.
A new floor system is installed using a frame trimmer joists to support the floor joists that span the width of the loft.
Strengthening attic joists for live loads by sistering.