DannyT Posted October 14 Share Posted October 14 I was going to put this in roofing section but it seemed more for coverings than construction. Im concerned that a SE is only interested in covering their arse and go over the top with most things. If I were to have a partially vaulted ceiling in living/dinning room and normal ceilings elsewhere, won’t a ridge board be adequate like it were back in the day? collars in the roof, say 2/5 of the way down the rafters? Is there a rule of thumb for this? Im all for doing it properly etc and I know RSJs are used for full vaulted ceilings but I’d prefer the more traditional method. OSB sarking board counter battern scottish slate covering. cheers Link to comment Share on other sites More sharing options...
JohnMo Posted October 14 Share Posted October 14 (edited) Are you in Scotland or England, your profile says both. 31 minutes ago, DannyT said: traditional method. OSB sarking board counter battern scottish slate covering Traditional in Scotland is sarking boards not OSB. The traditional boards shrink and leave small ventilation gaps, then I would add a breathable membrane, and no need for counter batten, you just slate direct to sarking boards. This then gives the correct wind loadings for Scotland. 31 minutes ago, DannyT said: If I were to have a partially vaulted ceiling in living/dinning room and normal ceilings elsewhere, won’t a ridge board be adequate like it were back in the day? collars in the roof, say 2/5 of the way down the rafters? Is there a rule of thumb for this? Why not full vaulted? Then posi rafter and glulam ridge beam. Edited October 14 by JohnMo Link to comment Share on other sites More sharing options...
DannyT Posted October 14 Author Share Posted October 14 5 minutes ago, JohnMo said: Why not full vaulted? I’m not feeling a 6.5m ceiling. Like a bit of height and velux windows but not to a point right at the top. Also heat rises and I won’t be sitting up there 😉 18 minutes ago, JohnMo said: Traditional in Scotland is sarking boards not OSB. The traditional boards shrink and leave small ventilation gaps, then I would add a breathable membrane, and no need for counter batten, you just slate direct to sarking boards. This then gives the correct wind loadings for Scotland. If that’s the way it’s done in Scotland then that’s how it shall be. I’m used to the way in england so will be learning the Scottish way as go. Currently in Staffordshire but build is southern Scotland. Link to comment Share on other sites More sharing options...
JohnMo Posted October 14 Share Posted October 14 40 minutes ago, DannyT said: Also heat rises and I won’t be sitting up there Only really when using high temp radiators. With UFH the floor surface temp will only be 1 to 4 degrees warmer than the room depending on outside temp. Link to comment Share on other sites More sharing options...
joe90 Posted October 14 Share Posted October 14 1 hour ago, DannyT said: I’m not feeling a 6.5m ceiling. Like a bit of height and velux windows but not to a point right at the top. Also heat rises and I won’t be sitting up there 😉 +1. Link to comment Share on other sites More sharing options...
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