How To Fit Floor Joists In A Loft
Your new joists want to sit on top of the wall plate just like the attic truss does there is no need to remove the old ceiling as the truss and joist will sit together flush and nailed together down into the wall plate and to get over the angle creating weakness fix the top of the joist to the rafter use a block of wood the same thickness as the truss.
How to fit floor joists in a loft. In smaller lofts it is often the case that the floor joists themselves will be used to support the sloping rafters. Clearing the loft area of all debris insulation struts and temporary boards to expose the ceiling boards. Set up a temporary work platform on a piece of board set across the ceiling joists it is safer and more comfortable than trusting your balance measure the area you plan to board out multiply the width of the loft by its length. With the supporting ashlering in place the internal struts and braces can now safely be removed.
Trimmer joists form the periphery of the new floor. Take measurements in metres this makes it easier when you are buying boards. This is possible by constructing a dwarf timber stud wall 1m to 1 5m high known as an ashlering between the two.