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My floor joist has been damaged by fire. See attached photos.
How do I URGENTLY repair this?
Hello @SPP
I'm sorry to hear that your floor got damaged by fire. In this particular instance, I propose engaging the services of a registered builder so that they can assess if the beam under your floor will need to be fully replaced or can be cut and linked to a new one. The floor panels will generally be replaced with new ones. Before starting, its best to make sure that it is safe to start repair works. Make sure to get the all clear from the relevant trades such as electricians, gas fitters and any other local authorities.
Let me call on our experienced members such as @Dave-1 and @Nailbag for their recommendations.
If you need further assistance, please let us know.
Eric
Hi @SPP
If all that is damaged is what we see in the photo, then I would first mark out a rectangular cut out at the nearest non-damaged floor board joins either side, then non-damaged point end to end. Use a circular saw to cut to each corner. You will need to plunge cut (advanced cut) across the boards for the ends or use a Jigsaw. It just wont be as straight. Use the jigsaw to complete the corner cuts.
Leave the burnt joist as is and simply reinforce it with 90mm x 45mm pine fastened with offset 90mm batten screws. You will need to put 90mm x 45mm noggins at the ends between the existing joists to support the infill board and existing board ends.
You will need to source a length of replacement floorboard of the same thickness and width as the existing. Timber yards will be your best option for on-hand stock. If the home is old heritage style then Google "reclaimed timber merchants near me". Don't try and match a same colour finish timber because you wont be able to. Concentrate on getting the right boards and installed. Then you can worry about staining them a colour that is a close match. A full floor sand back to timber will be the only way to eventually conceal the new boards.
Use wood glue and nails to fasten the infill boards in place. If this is too advanced, then a decent handyman can do this type of work if you source the floorboards.
Nailbag
I would follow those as they really are concise.
