In short - I have an attic in a wooden building where house borer caused damage. Old damage, but still damage. I want to replace the beams but think it's foolish to provide more food for them.
Does anyone know if it's possible to use thinner steel beams (like square tubes) or something similar as a substitute instead of tearing down the entire roof and filling it with wood? I was thinking of placing them between the wooden beams and welding them in place/screwing them to the joists as well as to each other.
I'm in zone one and only have a wooden roof with tar paper, so it's quite a light roof.
What do you think? Doomed to fail? Or a brilliant idea?
Will do! Just need to measure it out. I assume you mean the roof beams and how they are positioned in the attic? Are the measurements exact or "more or less"? I'll upload a sketch tomorrow.
Fixing it! Just need to measure it out. I assume you mean the ceiling beams and how they are positioned in the attic? Are the measurements exact or "more or less"? I'll upload a sketch tomorrow.
Thanks again!
Yes, exactly, please sketch out a section and a plan. Measure as accurately as you can.
Attached are some pictures and sketches - let me know if anything else is needed.
Each beam is about 145mm wide (square, spruce, heartwood). The roof has been lightened by over 1 ton as there were 8 layers of felt (coal tar felt) that I removed and replaced with lightweight felt instead. The roof was grateful for that.
There is also a passage where there is no beam, but small beams are screwed to other main beams. I've illustrated it a bit. I'm also attaching some real pictures to make it a bit easier. Thanks again for the help!
The beam at the bottom is 74 cm and not 174 (it might look that way).
Approximately. The passage has no beam. See below.
A close-up of a beam.
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