cavity

Hi, I removed the garden door threshold (20mm mdf board, about 25cm wide and 190cm long) to see what's under it and here is what I found I have a few questions. Is that plastic thing a cavity closer? The inner leaf of the house is built from blocks (aircrete), so why are there regular...

House built in 1979. I believe it was built with the PVC sliding door which we've recently replaced for an aluminium door (as part of a much bigger project). As per the photos, there is a gap between floorboards and rear of door (threshold?) and I can see down the cavity. The DPC is two courses...

I have a 4.3m x 3.4m outbuilding, single skin block & some brick. Floor has DPM under concrete, I’ve also done a DPL round corners & then self level. I have also gone round an drilled plenty of air vents. The plan: I have got plenty of 2x1 batten lengths so batten around room (DPM behind &...

I'm actually in Sweden but I'm a brit so thought I'd try on this forum. We have an old (150 yr old) log cabin which I am renovating, currently insulating the upstairs. 2 x 4 stud walls with 100mm celotex between studs, VCL, then 50mm Celotex over studs. The walls are very uneven so there is a...

With the 2023 building regulations changes it looks like the external wall width (from exterior brick to finished plastered internal wall) for a new extension would be: 102.5mm - exterior bricks 150mm - cavity for standard insulation (unless using some higher performance / more expensive...

Hey all, looking for a bit of advice on how best to go about closing off the cavity around some new windows I've just had installed, the previous double glazing was installed within the sash boxes and this time round they've ripped them out and the windows installed in the external part of the...

Hi, First post so please go easy on me We moved into a new build last year with a wood burning stove and come the winter I was disappointed with the amount of heat the fire kicked out. After some inspection, I noticed within the recess there are two lintels but with about a 4 inch gap...

Him Just realised I have had 3x SK90 cavity lintels waiting to be used and removing the roof ( single storey extension going to flat roof ) the cavity is only 75. Well, anything from 70 to 90 it seems. With help on here (thanks woody) I’ve stepped in to the main house - looks good - but now...

hi, I was wondering if anyone could help me? The plasterboard will be fixed using the dot and dab method. For internal moisture do i require a vcl barrier? Or does the foil facing insulation within the cavity have a intergated vapor barrier inner face

I know this has been posted many times before and I have spent time looking at those threads. I'd just like confirmation from those more knowledgeable that what I'm about to do is correct. The builder has left me a shell of a garage and what will be a utility room on the back. The floor levels...

hi there, I am looking for some advice regarding my home project. We have had the wall below a window removed to make way for a back door which is being fitted at the end of the month. As you can see from the photos there is an existing dpc on the external leaf. The internal wall was brick...

hi there, I am looking for some advice regarding my home project. We have had the wall below a window removed to make way for a back door which is being fitted at the end of the month. As you can see from the photos there is an existing dpc on the external leaf. The internal wall was brick...

Hello everyone, I was hoping to get some advice on how to proceed with finishing off our windows. We had windows changed and moved forward so they sit flush with the outside wall. We’re left with cavity on the inside, which mostly have battens in the cavity gap (left, right and top side)...

Hi , The boxed in support beam in my kitchen had water coming in. The hole in pic was made to see where exactly the water was coming from (photo attached). I've been told three different things - that it's because there is probably no tray in the cavity wall, that it's the render, that it's the...

I have a block built property. It has unfilled cavities. There are vents through the inner wall to outside wall air bricks under the floorboards which work well keeping it all dry. The walls are built on a concrete platform with 500mm between floor joists and concrete. I am considering filling...

I am currently renovating my kitchen and am looking for some advice in how to screed over a cavity. A section of the old screed layer has broken up around the edge of the patio door threshold. At the moment, there is a dpm under the patio door overlapping the cavity and meeting the main dpc...

We removed the tiles from our window sill and ended up exposing the open cavity. (1959 Bungalow) What would be the correct method to close the cavity and replace the tiles with a wooden window sill? I dont think a cavity closer goes smaller enough to fit in to the void. I was going to: 1...

Hi, I'm trying to locate draughts (drafts?) in my timber frame house and I don't expect to find everything, just any faults or things that could be fixed in DIY jobs where possible. I know this is a never ending task for some houses so I'm just looking for big wins (autocorrect says big wind!)...

Hi all, I hope you are well. I am looking for some advice on our extension and how to close our cavity floor to install a bi-fold door. Currently we have a 2.05m high by 2.0m wide area for the bi-folds. On the external wall is a layer of stone directly on the blocks which has a DPC and is...

Hi, I'm currently doing some work on the front garden to take the ground level below Dpc level and have removed paving slabs from the whole area. However after removing the ones in front of the front door, it's exposed the sub floor beneath the hallway. There's no outer brick skin present just...