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Hi, Have some hanging reclaimed clay tiles (on timber frame/ply/battens) to drill through for a 40mm waste. BC have said it's fine. Should I use a diamond coated core drill that is normally used for internal bathroom tiles like this...

Lovely jubbly. All my snags/queries are getting sorted nicely with the help of you guys. Thanks.

Done it, only took 90 minutes. Thanks for the advice guys.

I'll ask for primer, but if I ask for the primer to be sanded before the undercoat I'll probably be chucked off the scaffolding! Might do it myself if it comes to it, an hour's work is probably easier than three hours of moaning/arguing :roll:

Redherring - that's exactly right. Thanks for the clarification.

Thanks Noseall, I apologise but I don't have a picture. It's the end of the (new extension) ridge beam that's (half) resting on the (old house) rafter, all the extension's new rafters are resting on their new ridge beam fine. It's just that connection between new and old that's a bit out. I...

Er, right. That seems pretty clear then! Thanks joe-90.

Hi, Small extension subservient (I mean lower than) to existing hipped roof, the new ridge beam only just meets an existing rafter on the old roof. So rather than the full timber width of 2 inches meeting, there is maybe one inch of the ridge sitting on the rafter and one inch in thin air...

Took me £10 (I think) and about 2 days to get an analysis done by post. Put a tiny sample in a plastic bag, send it off with a cheque, they email then post back report - then you know for definite. Might be same risk as passive smoking (? don't quote me on that, I'm not a scientist!) but it's...

Hi, As far as I know bare wood should be primed, then undercoat, then gloss (or primed then one coat). Our builder has turned up with just a tin of undercoat and I'm nervous - don't really want yet another fight over how to do things properly (!) unless it's really necessary. This is...

Think self tap means 'cuts its own thread' not 'cuts its own hole' right? Thought it might be the same as screws cutting straight into metal framing for plasterboard walls - but then I only ever use timber framing. Live and learn.

Hope it's ok to join in on this - about to install my 3rd Geberit loo (this time plus basin and bidet), used ply outside before but going for Fermacell this time - cheaper, dimensionally stable, resists damp and used by one company in their hanging system who also provide pre-cut boarding so...

Phoned Unibond Technical bod and he said PVA would all wash off when it rains! Even their exterior PVA only becomes waterproof when it's mixed with cement. I said to the guy wouldn't it penetrate in and he said - yes, then the rain would penetrate it straight back out! I think if Unibond are...

You're right! Just spoke to building control and they said there is no minimum, it all depends on spans and loadings. He said the TRADA tables are guidelines with a built in safety margin, they are not the only thing BC will consider. So if a structural engineer shows them the figures are OK...

Drat. Couldn't just call it '97mm extra regularised'? :wink: Cables could be run along the ends above supporting walls and then in between the joists. I'll check what Building Control say but looks like it might be back to the drawing board and a few thousand extra for the sake of 12mm of...

Brilliant, makes perfect sense. Thanks Nige.

Hi, I am hoping to be able to use existing loft joists in a loft conversion without putting in a whole new load of joists. The middle 3 feet of the room is supported by staircase walls below, then if I put steels 6 feet further out on both sides (behind or below new roof supporting dwarf...

But then they'll know for definite I'm a newbie they can blind with jargon! You know, better to say nothing and have people think I'm an idiot than open my mouth and confirm it. :D

Got a quote and I'm not sure what that phrase means - is it the same as boxing in pipework? Also, 'double tack joists' - two layers of plasterboard, right? I'm what you might call an 'experienced newbie'.

"get a builder for building work and a roofer for roofing" Ha! aka 'specialise or die'.