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Hi all, Feels most relevant in the ‘Building’ section. Is there such a thing as expanding silicone sealant, or a.n.other waterproof sealant? Basically waterproof properties of silicone with gap filling of foam? We live in a flood resistant property and need to make a soil pipe penetration...

Hi all, We have an extension that at some point we would ideally take a water feed to - due to a number of factors, going through the house is not possible. We have our mains water pipe in the drive that we could connect to. My understanding is that any mains water feed has to be buried at a...

Hi all, Having a challenge interpreting Part J of building regs, specifically distance from log burner to combustible materials; in this case an oak mantel we are about to install. Our Stovax Stockton 5 stove just lists ‘N/A’ as distance required above the stove. My (perhaps incorrect)...

Good morning experts, Just looking for some advice to help with some post flood renovations that we are doing. We are creating a new ensuite in an existing garage conversion that has a bedroom above. Structure isn't changing, just gutted it because of an abysmal (but bc signed off) insulation...

Good morning all, We're currently working through knocking around an existing bedroom above a garage. This includes a new staircase, the existing of which took up a huge amount of space - so we're trying to rationalise and create as much floor space as possible. Our architect, who...

Morning all, Hopefully a simple question! Is there any reason why I can't fit a rectangular shower tray with the waste at the 'opposite' end to 'usual'? Basically at the walk in end rather than under the shower itself. Would make the slotting of waste pipe into a gypsum screed much, much...

Hi all, I have previously asked about possible ways of running 2x 28mm Flow/Return and 2x 22mm Cold/Hot to a remote annex. I can't find that thread now so apologies for asking another one but this might be useful for others searching in future. So this may be a very stupid question but here...

Good morning team, Not sure if this question sits in woodwork/carpentry or flooring but here goes! Just had a DIY-Kitchens delivered (Linwood range in Carbon, absolutely fantastic quality for anyone thinking of one) and need to make a start on getting it fitted. The fitting will be taking...

Hi all, Is there any reason, regulation or otherwise (aside from best practice) why pipes cannot be run within the cavity wall? I need to get 2x 28mm (CH F/R) and 2x 22mm (H/C) to a remote part of the house and currently have a large section of the cavity exposed due to having to replace flood...

Evening all, We’ve got a relatively thin 30-40mm Calcium Sulphate based liquid screed (Gyvlon Thermio+) set on top of PIR insulation. We need to channel the screed to lay some new pipe work for an extension (2x 28mm F+R pipes, 2x 22mm cold+hot pipes) and just wondering if anyone could advise...

Hi all, I’m looking for conduit for 28mm plastic pipe and conduit but not having much luck. Any suggestions for both pipe and conduit brand to look for? JG Speedfit do the 22mm pipe and conduit; 28mm pipe but no 28mm conduit! I need to run a 28mm flow and return that will be buried in...

Afternoon everyone, I'm just preparing our existing, uninsulated (we think) floor slab for imminent installation of underfloor heating (booked for c.2 weeks time). Short version: I'm an idiot and didn't consider everything. Long version: We are limited in options for height build up due to...

Good morning all, Just starting preparations for existing slab to have PIR insulation laid over the top before UFH and liquid screed. The top layer of the existing slab is quite rough and won't provide a decent base for the PIR to sit on so I think I probably need to provide a blinding sand...

Hi all, Do any of the fall type requirements for an SVP apply above the last branch/connection connected to it? Can't find anything online anywhere. Basically planning a new SVP and want to take the venting part of it as far across the side of the house as we can to prevent shading on solar...

Good morning knowledgeable ones, Could anyone possibly point me to the written regulations regarding how much cover a domestic gas pipe must have when buried in concrete screed? I should be clear that I am not trying to work out what I can achieve, but rather make the case that a gas pipe...

Hi all and hope everyone had a good Christmas. We’ve got some open cavities at slab/DPC level at external doorways following screed rip out that will be replaced soon. All posts that I have seen regarding closing this part of the cavity advise continues DPC between leaves filled with some...

Morning all, Just wondering if anyone can advise why there is this additional trimmer timber directly above two Velux we have? I can of course understand the doubled up timbers above and below, as well as the single timber directly above (for fixing plasterboard to) but just not sure on why...

Morning all, Following on from a separate post about sorting out the insulation in a dormer above a garage, I have now stripped the space back to bare structure. There is a steel in the ridge with roof joists suspended from it with timber infill with plywood making up the flat roof deck ...

Good morning all, I have asked this question in the narrative of a separate thread but I suspect it will be missed and I could really do with an answer. I am seeking a 10 or 12mm PIR insulation board to use to reduce cold bridging in a space where there is little room for a reduction in head...

Morning everyone, Just trying to make a final decision on how to do UFH. Background: Property is 1980s, screed over (I think) uninsulated slab, CWI, decent insulation in the loft, double glazing, new doors etc. Screed is being ripped out due to renovations, an extension and water damage, so...