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I have a feeling it’s definately not the roof it’s got a 100mm fall across 6 meters and that corner is the highest point falling away from the wall. Here is a picture of the external leaf. That course of block is just above the ceiling. That gap in the mortar is right above the wet patch on the...

I don’t have a picture of the finished roof as of yet. I’ll get it shortly, however it’s a parapet roof, see attached during construction. The leak is in that corner where the squirrel is. The parapet has been sealed up with a Layer of dpm across the cavity, osb3 boards closing the cavity, and...

Originally thought it was a hole in the roof, but as the water is starting in the middle of the wall, that rules that out? Attached some photos of the wall and corner. The tissue is not wet by the ceiling, but 3 courses below it?

hi guys Just had a new extension shell done and apparently builders says it’s all water tight and have now deemed the project as complete. Recently had a plasterer come to plaster the walls and we noticed a wet patch in a corner of the wall which the plasterer will not plaster as the plaster...

The screed has been laid for a week now. When I first had a clear polythene sheet over it, there was moisture on the underside of the sheet. That was in day 1 and 2. I took the sheet off, sprinkled with water, and put the sheet back. The sheet has been dry since (last 4 days). I didn’t seal it...

hi guys Just screeded a 16m sq room last weekend and just covered it up to help slow the drying. I had also sprinkled it with water to help slow it down I also read about sealing it with cement/pva slurry to keep the dust down. Is this something anyone recommends? If so, is this a good time to...

That could work, I will need to use 6x2 from one wall to the other and jiffy them. I could also rebuild the wall under the insulation with dense concrete blocks on their sides. Leave a hole for the vents, and bolt the 6x2 across. Alternatively, I could cut part of the concrete, insulation and...

Building inspector wanted cross ventilation and suggested taking out the old concrete floor for venting. It also benefits me as I can better insulate, and use the same subfloor material as the original house. I’ve attached a quick sketch showing the location of the timber. I could do option...

hi guys I’ve found a lot of info about fitting joists which are conventional, however I don’t think I have come across an answer to my particular situation. I’ve just removed an old concrete floor. It was too high with 0 insulation and no space to insulate above without messing up floor...

I have something similar. What did you do in the end? Assuming you ended up putting a plasterboard under the steel with 600mm of plasterboard for fireproofing? Seems the 1st layer of plasterboard would not be necessary? As it isn’t really contributing to fireproofing? What did you do with the...

Had BCO visit, Options he is happy with are 1) double boarded and boxed between the joists. 2) no need to box if double boarded in ceiling with a 600mm of fireproofing either side of the RSJ. Rest of the ceiling can remain 3) replace all ceiling with double board 4) replace all ceiling with...

All the beams will be above ceiling, nothing is exposed other than columns, which will be fireboarded I see, let me check with mr BCO tomorrow/today...

Right guys, the beam is finally in and brickwork added between the beam and the rest of the house. Glad to say the house didn’t fall down! 5 props on strong boys on the outside. 3 props holding up the ceiling joists on the inside. Strong boys and props up in day 1, walls out, steels in, and...

The steel is finally in, here is the picture. It’s slightly above ceiling level, and protrudes into the first floor slightly. BCO will arrive on Tuesday, and I’ll be suggesting that i will board it out with double layer of plasterboard fixed to noggings between the joists. The columns, I’ll be...

hi I’m doing a small diy project to build a smallish pond. Pretty much got the walls up now and ready to render. Walls are a combination of poured concrete and 3 courses of hi 7 aerated blocks on top. (Blocks were a left over from an extension project) I was planning to go a typical render mix...

Hi, I don’t have a photo just yet, as the builders are still working on it. I guess I’m just looking for general advice in advance of d-day, to manage my own expectations. Most posts and research I have done, shows the RSJ under ceiling level, which makes sense to wrap, however I haven’t found...

Hi guys We have an RSJ installed into a ceiling. We had some builders quote for a new ceiling and some that said the ceiling doesn’t need to be replaced and the RSJ can be just wrapped in plasterboard. We went through with an installation quote where they didn’t need to replace the whole...

Thanks, I guess I was worrying about the DPC not keying properly to the mortar leading to eventual building movement. :D

Hi guys I’ve been reading about DPC and that we should be bedding it on fresh mortar so that it could key and prevent water ingress into the voids and have no risk of penetration as per British standards. During my build the builders have laid the inner leaf DPC on fresh mortar, unfortunately...

Surely if an electrician is to wire in an appliance, the guidance would require there to be an approapriate switch to turn off said appliance (e.g a fused switch?) Also to mention, I incorrectly stated a transformer when I really meant a 24v led driver :D so sorry. I was hoping to use the 24v...