zoe61

Cavity walls= 50mm foil backed kingspan Hillside walls= 100mm internal kingspan When I say 50mm insulation, these walls all have 50mm in the cavity and another 50mm internally. In terms of attic I havent quite got there yet to determine whats going in, but we have taken the roof off and a new one is going on so we can do what we want here. Windows are South-West facing (will get a lot of wind) and double glazed aluminium. In terms of the MVHR, obviously its easier to fit this prior to testing the house for air tightness, is there a way to determine before hand if we will achieve the values you state please?

We currently work all day, but when we have children things will no doubt change. Do you say this because of the warm up times for UFH?

Thank you Mike. In terms of the cavity walls will adding insulation still present a problem in terms of condensation? Researched this and struggled to find any answers for cavity walls. In my mind its no different to adding plasterboard to the walls and therefore shouldn't pose a problem?

I have read all the online information but struggling to get any good honest impartial reviews. We have a two story house that is built into a hillside and we are also using the attic as our living space. Its a conversion project but a fairly modern building so it has a 100mm cavity with 50mm insulation. We plan to further insulate the house so i was thinking of adding at least 50mm insulation to the inside of the house and then plaster board on top of that. This opens its own can of worms of questions (how will we do this, will this mean we need MHVR system, will it be enough/not enough insulation etc.). The ground floor of the house is a concrete slab with 3 walls solid filled with concrete due to the house being built into a hillside. I will obviously be using screed for this floor with 120mm floor insulation and 100mm insulation of the sold will walls, and 50mm insulation on the exposed wall. Approximately 50% of the front wall is glass. 50% of the floor will be tiled and the rest carpet. My concern with this floor is will it be warm enough with the UFH alone if we have a cold winter like last year? I'm now stuck with the rest of the house. We have metal web floor joists so can either go for spreader plates or screed. All of the floors will be carpet. I've heard some people say that the UFH doesn't work well with carpet and as soon as you turn the system off its cold, therefore making it expensive to run. So should I go for radiators or wet UFH? If I go for UFH would I also need it in the attic (large area roughly 12m x 5m) or would it be a waste of money?

Hello from Yorkshire. Just a friendly hello to let you know a bit about myself and our project. My partner and I are currently in the process of converting a building. Its a fairly modern build so luckily for us it was traditionally built with a 100mm cavity with 50mm insulation which makes life a lot easier. But we have plans to further insulate it which raises a lot of questions which I'm hoping some of you may be able to help with later. I'm a Civil & Structural Engineer by degree but I never really went into that specific field, instead I design the Overhead power line systems on railways. It may sound ambitious but I have done all the architectural and structural designs myself as I like the challenge. I have no previous experience in anything house related so its a huge learning curve, but (hopefully) all part of the fun! Anyway hopefully I can learn some tips from you guys along the way and share the journey with you.