Hi - I've had some building work done and they've taken walls down and put steels up, including some box steels with 10mm plates welded on the bottom, above the new bi-folds.
I'm fireboarding the steels before BC come to inspect again and I'm happy how to do the I-beams (wooden noggins etc) but I'm not sure how to attach the board to the side and underside of the box steels.
I've got 15mm fireboard so it only needs one layer but I don't think there's enough room to batten the steel with self-drilling screws then attach to it as it will fowl the top of the door. The builder suggested 'sticks like s***' but I think BC will want to see some mechanical fixing.
Hi James1979 Suggest you try a solvent based filler/adhesive like Gripfil, you will have to support the boards temporarily until the filler is set. I’m assuming you are not incorporating insulation between the boards and the lintel. Regards S
Thanks for the reply and no - no insulation between. That’s what the builder suggested to do will go with that. Do you know if BC will be happy with that or will they expect some form of fixing like screws?
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!