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Hi, Anyone know what the regs are on a timber internal leaf for a cavity wall? The problem I have is where 2 doors join at a corner. Over these doors is a corner lintel, L shaped. At the corner this has a support post 80x80mm. Cavity is only 50mm. In plan view this is a 250x250mm pier...

Hi, I've found some old threads on this subject but I'm still confused as to which way is best. This is a house remodelling. A whole new 1st floor. Walls are outer skin of medium density block. These are smooth rendered. Render stops at ground floor window top. Which is the best system...

FYI floplast have a interesting board, double sided L or U. U354, 9mm thick, 354mm wide, legs 43mm outside so 34mm inside. The 354mm is outside too so 336mm inside. My wall is ~20+100+50+100 = 270mm, maybe another +20mm, so that's 33mm or 23mm overhang which doesn't sound too far out...

Interest idea of roof battens. I don't know that would work though. The idea of a board across the top is to seal off the cavity, and support the fascia trim. That way I could have thinner upvc which is cheaper. 9mm rather than 18 or 22mm. 9mm works out as 4 x £10 where as 22mm would be...

Good point about the lead. Probably not worth a great deal as scrap if it is only ~£100 bought but might still be a temptation. Do you have a link for the fibreglass roof trims? Yes, I was wondering about upvc fascia board. The top of wall could be capped with osb screwed to the brickwork...

Hi, I've house remodel project and in that I have 2 parapet walls (5deg slope). As they are 1st floor height I don't want to coping stones. I've looked at aluminium coping but these seem to be made order and "loads of money". I've 2 2.1m runs, latest quote was £640! (ex vat). The "cheap" al...

Because the slope of the roof is 90 deg to rafters so last rafter has 0 furring, next at say 450mm, 1:40 has 11mm.

Is what I'm trying to achieve if that helps. I suppose my other alternative is a glass roof with side furrings but then I'd end up with a high shelf that tapers to nothing. Left wall has some high windows side it would otherwise look out on to a passage way. Right side has bi-fold which...

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I'm planning a extension which has 2 parapet walls, ~2.1m long with a glass roof in between. What are my options for capping the top of the wall (which will be render btw. I'd like to keep the level low, so just above the slope of the roof, and then bring the flashing down from the wall top to...

Thanks for the replies. I have remember the furring but they don't make much of difference. BTW my solution is T&G OSB3, aka roofdeck or other trade names. If I use the long T&G side at 90 deg to the rafters then I don't need a noggin which makes life simple. Of course I still need...

In a flat roof you have rafters, say, 50x170. On top of this goes the deck, osb or ply, 2.4 x 1.2m max size. Where 2 sheets on of a roof larger than 2.4x1.2 you need a noggin, between the rafters, to support the edges of the osb/ply. What size wood does the noggin have to be? Say noggin is...

Hi, I can't find anywhere that says what dimensions are needed for noggins to support flat roof deck edge. Long edge lines up with rafer/joist. For short edge I read it says fit noggin, but how big? Presumably this depends on rafter/joist spacing. I don't want say size as rafter/joist...

Thanks for info. The project is a 1st floor on a bungalow so loft conversion would be a very big house. I was planning on a large cylinder, 1500mm high, in a large (2 door) airing cupboard. So far I despair of getting sensible info from either worcester-bosch ("fit a system boiler as then...

Hi, This is a completely new install so a clean slate. Selections so far are mains gas vented hot water tank My reason for vented is I have the head room in the loft to get >1m below the cold water tank so vented allows DIY and I have a defined flow rate independent of what the mains...

OK, That's an interesting point. So boiler replacement would mean replacing the flue as well. The roof is quite tall (if I could site the flue there). I suppose it might be possible to replace the flue up to the vent tile but otherwise that does get tricky I can see. I suppose 1st floor...

Well his would be one opinion and it is current Easter weekend. I'm looking for a range of opinions and the whys and why nots.

I'm considering an extension and at same time fitting gas central heating (not me fitting the gas of course). Everything is variable including boiler position and flue. Is it better to have the flue exiting from the roof? Or is a wall exit just as good for the risk of nuisance? I could...

The undercoat is fine so it would be a bit of job to take a brick out (would be a block anyway). I don't think it is damp I think it was just poor plaster. I'm stripping other plastered walls in the same house and not having these issues. The plaster blows with the steam on it for say 10s...