Harry13

Hi all, I’ve got a few diy jobs upcoming and wanted to know options on what is best, screws or nails? I’ve done a few flat roofs and stud walls in the past and have always skew screwed in, the roofs have held up for a number of years now. I would like to know if it’s worth my while investing in a first fix nail gun, what are people’s thoughts? TIA

Hi, the walls have been made with concrete blocks and there are 2 leafs with a cavity. External wall measures 5.3m on the outside edge and the internal leaf is 4.7m on the inside. Thanks

Hi and thanks for the reply. The overall height will be 2.5m once the 220 joists and roof deck and coverings are installed. 1 metre away from the boundary. So just to confirm I’d be looking at 2x9 for the joists? I’ve had someone else tell me that I should be using 3x9, not sure if that overkill, that said I’d rather have it as strong as possible. many thanks

Hi all, I’m currently building a garden room and have a question regarding the flat roof I plan on installing. The room is 5.3x5.3 outside walls and internal walls are 4.7x4.7 I’d like to know if 8x2 joists @400 centres will suffice over this distance, installing an rsj is not an option for me due to doors and window lintel sizes and positioning. Many thanks