NandM Posted January 8 Share Posted January 8 My plans have dragged on a bit...but I'm hopeful to start this Spring. I've received the SE drawings for extension we have planned and have a query about the beam design for the ground floor. The current design is single beams with a plate as required. The left hand beam will support the original cavity walls, which have a 50mm cavity, and a bedroom upstairs. The beam on the right will support a new wall that will go all two floors up to form the wall for the dormer. This will have a 200mm cavity. Just thinking about making the build easier and minimising cold bridging - would it be better to have two single beams, especially for the one on the right? Link to comment Share on other sites More sharing options...
nod Posted January 8 Share Posted January 8 It’s normal for a SE to specify a hit and miss plate He or she is trying to save you money Ask him to change the drawing if you don’t mind the extra cost 1 Link to comment Share on other sites More sharing options...
ToughButterCup Posted January 8 Share Posted January 8 56 minutes ago, NandM said: .... making the build easier and minimising cold bridging .... I don't know how to quantify the additional costs associated with cold bridging in such a small area : and I bet nobody else can either. Treat yourself: forget about it. 2 Link to comment Share on other sites More sharing options...
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