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Thanks. I’ll do that.

thanks. Looks like I’ve a BC guy that is asking for more than is required then. I’ll phone and talk to him to ask him to either reconsider or explain why he expects double layer.

Just re-read your comment. No habitable room in the roof space, no. Hmm looks like the BC guy is asking for more than is needed.

thanks again 23cv. The backstory is: This is currently a garage that we’re converting the rear half into a studio type room, retaining front half as garage type storage. We’ve gone through Building Control as we may need this to be classed as a proper habitable space later due to some health...

I don’t know whether house trusses are specifically designed for noggins, or whether the noggins are fixed in a specific way.

thanks 23vc. The building control guy that came out said he wanted me to double board using 9mm plasterboard to meet the fire rating. The trusses are 500mm apart and at that spacing I’ve been told that the plasterboard risks sagging without me adding noggins to support the bound edges and also...

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We have a garage that has a trussed roof that I want to install a plasterboard ceiling. We have to double board it to meet Building Control approval. To allow edges of the plasterboard to be supported I need to add noggins between the roof trusses, (trusses are at 500mm spacing). Am I...