With the blockwork complete, the carpenters were able to make a start. The timber wall plate is bolted to the block using Hilti resin anchors to fix the M12 threaded rods into the blockwork. The joists are then attached to the timber plate using joist hangers. The same fixing method will happen on the existing wall. This approach helps to minimise air leakage. at intermediate floor level – often a key air leakage path.

The floor structure should be finished next week and will be temporarily boarded to give a platform from which to construct the roof.