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Oh, things I forgot to say. Original span - purlin to wall plate was 194cm and a bit more to purlin in loft. New span between new purlins - 196cm with over 180cm headroom under new middle purlin. Distance choose itself (partly) by looking at which bricks to remove Things I'd do...

Really didn't mean to be flippant. Thanks for your reply but a bit late.... I took the comments on board and fitted two purlins. I'm sorry if I came across blaze but some of the suggestions were almost scaremongering.

That is the way I have looked at it, the tiles are the original Acme purples, with a pitch of 45 degrees so quite a steep pitch as well

Thanks for the reply. The main reason for moving it is its present height. It's at chest height.. so can't place a bed for example against the new stud wall. As far as BR/BC as I said before, there is only one 10*2 there at the moment. would that scupper a sale? Don't take that anyway other...

Just reading through again. My intention is to run the second set of rafters an inch above the loft purlin to an inch below the new one. Bolted across with toothed washers. So having installed the new lower purlin "quickly" cut out the existing one and double up, insulate and ply asap. The...

As for insulation... what you see in the photo is what and where I found it! So in effect the room was uninsulated to the tiles.... the original wool sheet had torn from the nails on the rear of the stud wall. I was planning kingspan type insulation of 50mm still allowing some ventilation...

Sorry, it's not the loft! it is the eaves of a bedroom in a dormer style house. there are two existing purlins, one in the loft just above ceiling height and the one in the photo.

Hi thanks for the reply. The span is 4m dead. Looking at current regs there isn't a piece of wood that will span that these days! Not/wasn't planning on getting BC involved... The original plan was to put a new top purlin in as well. So doubling up the current strength... but the top one...

Hi, new member and straight in asking for advice! :oops: I have just removed a stud wall to expose the eaves with the intention of moving the wall outwards by 2ft to achieve approx 26sqft extra room (obviously with a reducing headroom). The purlin, which i had thought was tight against the...

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