insulation

I'm looking for some advice here. We have this alcove area behind what was originally a garage door, modified in the 70's I believe and until now we've just hung a thick curtain across the gap with a subsequent build-up of mould, as you can see. I'm looking to fill and insulate this gap to...

I’ve been dealing with cold walls in a couple of bedrooms due to having two external walls, which causes cold areas and has led to issues with condensation and mould. This is something I’ve always experienced with the property, even after living here for over 10 years. I’ve involved the council...

Hi, We’ve been in our 3 bed Victorian cottsge for 8 years and when we moved in there had already been a mansard dormer extension built. Due to space we are going to go further into the roof space and install some pull out cupboards. Problem with the dormer is that it’s been poorly insulated...

Hi all, Any one done this or had it done and do you have any numbers on how the heat requirement of these rooms changed subsequently? I'm just thinking through what the options are and if worth it for the hassle/risks i.e. -Will it make much difference (filled cavity walls, double glazed but...

i have a an integrated garage, at the front of the house next to the garage is a meter long open porch. ( inset into the house). the 1m section of wall between the porch area and the garage is single skin brick. it then changes to single skin blockwork. on the inside of the house there is about...

Hi First timer on the forum. I'm sure this question has probably been asked before - but I couldn't find it anywhere. Im building a standard single storey extension and all of the specs / drawings I can find online - show a typical construction of 12.5mm Plasterboard 40mm Celotex TB4000...

I’ve recently moved into an early 1960’s house and have noticed under the stairs where the plaster is coming away this insulation? Does it look like asbestos or is there anything else it could be? I’ve booked for a company to come and take a sample but they can’t come for another 2 weeks so any...

Right, I will try to be brief but I really don't want to cause issues later with condensate and associated damage to timbers / mould etc. Competent DIY'er but just cautious. Photo attached for reference. Please excuse the primitive drawing, it's clearly not to scale!! So we live in a two story...

I'm in the process of insulating a room located above the garage in my house. It has 3 solid brick external walls so gets very cold - I'm installing insulated plasterboard with 50mm PIR (celotex) bonded to 12.5mm board. My plan is to fix the boards using Soudal PB adhesive foam, direct to the...

Hi all, We’ve recently moved into an 8 year old house and, as expected with the damp weather and snow, have noticed an issue where our property joins with the semi-detached neighbour. There seems to be insulation above the felt and below the tiles, and this area has become damp. I’m not sure...

I’ve removed some plasterboard in my bathroom and found that the insulation is only covering half of the external wall. Not sure how long it’s been like this, but I’ll need to fix it now. I believe the current material is fiberglass insulation, though I’m not entirely sure. I need about 2 sqm...

I plan to lay a 14mm engineered floor (B&Q Marcy - softwood ply with oak top layer) downstairs over a concrete floor. It would be nice to use an underlay that is more insulating than the typical 5mm fibreboard, to loose less heat and have the floor feel slightly warmer to the feet. Would it be...

We are covering our garage and have painted a liquid DPM. We then plan on adding 50mm of celotex to the floor, with some timber supports in places around doors and where gym equipment will be as we've read this is suggested. We can't seem to find any specific details though on how we construct...

Good afternoon, We have recently bought a 1960s bungalow which has an uninsulated raft foundation. I am looking at whether it is worth removing the old screed and adding insulation before re-screeding. The problem I have is that I don't know the depth of the existing screed. Is the only option...

New wrap around side extension with: Pitched roof (breathable felt on rafters /standard ceilings joists) Double skin/ insulated wall/new floor etc etc What are my options as regards insulation to the 'attic' / void ? will have inspection hatch , storage very limited if at all foam backed...

Looking for some advice. We moved into a new house end of last year, and found that the 1st floor is freezing in winter. In particular the bedroom wall and floor on the roof side. I assume it is due to the roof? Rather than the garage. Can anyone provide advice on avoiding reducing the...

Is there a table somewhere to show how foil backed board compares to rockwool? I have 50mm thick foil backed board on my wall, but 200mm thick rockwool under my floorboards. From a warmth perspective, how do the 2 compare? Example: 50mm board is the equivalent of 300mm rockwool etc. (I've...

New kitchen extension which has pitched warm roof. Do I just need to 'celotex off' between each rafter to stop cold air coming in ?? (as ceilings will just be boarded- no insulation req ) Also above glazing a similar scenario ?? see pics second image is where eaves are shut off due to box gutter

Hi, I want a small extension to accommodate a 2x1m bathroom (internal area) and a 1.5x1m service area. I'd like an external brickwork, in terms of appearance, to blend with the rest of the house (cavity wall from 1970). What is the U-value requirement for the new external walls, please? Am I...

We're getting a garden room built and I'm looking at the different roof options. We can either have EPDM roof on OSB with insulation below or 100mm Kingspan insulated metal panels. I much prefer the look of the metal roof but I'm curious as to whether it would increase the noise from rain...