allthatpebbledash

The architect has been working on PHPP modelling and data suggests extracting of blown wool CWI and refill with EPS bead would give us the target value needed. But with adding EWI we can get that number lower of course. Given the added benefit of nicer exterior finish, and better cold bridging across the envelope, is why I’m debating the extra cost. Can you share a rough section detail of your floor to wall junction/build up?

Hello. Done lots of reading till now but not quite come across an answer regarding my own specific situation. I am planning a detached house retrofit. Part of works will include taking the whole roof off and placing a brand new one on (we’re restructuring basically). Also, suspended timber ground floor is going and we are filling with insulation and a slab most likely. Crawl space is 400mm leading to 800mm as ground slopes. There will be all new windows and doors and MVHR. But I’m struggling with understanding the walls. Currently external walls are covered in pebbledash. Ideally we want to remove or cover this. Wall build up is brick cavity brick, 70mm cavity and (fully) filled with blown wool many years ago. As the house is stripped out, can confirm it is still in place on 1st storey and not slumped. A part of the house (previous extensions) has 50 PIR in the cavity. I was thinking to avoid IWI to not reduce footprint inside, so my options were CWI only or CWI and EWI. But concerns about condensation and air tightness. Option 1. Extract current CWI wool, refill with EPS bead. Wet plaster internally for air tightness. CorkSol or render over pebbledash externally. Option 2. Leave wool CWI in place, 80-100mm EWI with weather tight render which will become new air tight layer. New roof and ground insulation will meet EWI to create envelope. EWI will go straight over pebbledash too. Cost wise, whilst CWI is cheaper than EWI, the additional labour of extracting the wool CWI, and re rendering over the pebbledash, and wet plaster internally makes option 1 more or less same as option 2. Hence why I’m looking at this route. I am concerned about condensation and convection within the cavity. Or can this be mitigated by other means? EWI runs down below ground closing off air bricks? Or new ground insulation/slab can close it? Or cap cavity at bottom and top? Looking for advice and input from anyone who’s done something similar or can advise on the merits of the above really.

Thanks for the images. The timber finish looks really nice. Suppose it’ll now come down to price once we get to that stage.

How about the lamination of the timbers put together? If you could, can you share some images please.

Hello everyone. In the process of our now third round of planning and we’re looking at aluclud windows. Idea is to have the internal frames clear lacquered to see the timber. I’ve seen GBS windows up close and the timber is jointed in many places. Rationel also appears to be the same as above. Many joints. Internorm doesn’t have joints as such but you can see where the pieces of timbers have been pressed together. Has more of a linear structure. We don’t mind this look. I was hoping if anyone has images of the other suppliers? Nordan Norrsken Allen brothers Idealcombi Velfac (same as Rationel?) There’s probably more but these are companies I know of so far. I’m trying to save trips to go see all of them in person by ruling out ones that are jointed everywhere. Thanks.

That sounds like an opportunity to go snap up some bricks en masse. Who’s this manufacturer please?

Having found out the supply of bricks is a little nuanced, I’m wondering if there’s manufacturers out there who’ll sell directly to self builders. We have a decent sized plot and could possibly off take a load at a time, maybe even a wagon load. I’ve searched the forum and come across York Handmade, but wondering if there’s others? We’re based in West Yorkshire.

Hi everyone. Lots of lurking from me as we’re not quite ready with planning yet for the new build, but doing research early. I’ve come across this comment (link above) which suggests there should a pinned thread or two which helps breakdown cost effectiveness in sourcing building materials, but I can’t seem to find it. Can someone kindly locate it for me? Effectively I’m trying to understand if a cash account is the way to go with merchants or if I should open trade accounts.

Just joined after weeks of browsing. Have a few questions which I couldn’t find answers to specifically so thought I better sign up and start asking. But first let me say hello. Project is to modernise a 1960s detached house. Has undergone a few extensions already under previous owners, albeit not in a thoughtful manner. We are going to gut the whole thing inside, add another storey on existing rear extension, complete new roof with loft conversion, and do a major internal remodel. And of course, remove 4 facades of pebbledash.