Gone West

Yesterday, I bought some Soudal low expansion foam from Toolstation, for sealing around windows and doors. https://www.toolstation.com/soudal-flexible-expanding-foam/p69089

Yes, two storey, walls and roof U factor 0.095W/m2K, floor 0.1W/m2K, 0.47ACH.

My last self build was a timber I-beam portal frame, structure as follows:- Plasterboard and skim 350mm Steico timber I-beam, fully filled with Icynene 15mm OSB3 square edge racking Protect TF200 membrane 50mm timber battens fully filled with Rockwool RW6 Protect A1 membrane 50mm counter battens vented air gap 15mm cedar cladding The walls and roof were both constructed in a similar way. The construction was successfully tested using the Glaser method for condensation risk. A WUFI analysis was not carried out. That may be of some use.

@Admin Wot @Big Jimbo says.

My windows are constructed differently, but I think where you have circled the area in yellow, is probably the same.

I have had small window leaks in the area shown. When filled with Soudal Fix All Crystal the problem went away.

When I was designing my last house I used the PHPP, and I ran some iterations to determine the sensitivity of infiltration on the space heating requirements. There are the results for my particular design. This was back in 2009 using the 2007 version. Pressurisation Test Result (ACH) Specific Space Heating Demand (kWh/m2) 0.2 12.1 0.4 12.3 0.6 12.5 0.8 12.7 1.0 12.9 2.0 14.0

Back in the 70s when I bought my first house, I also bought a book called The Conveyancing Fraud. I thought I could save some money. After having read it, I chickened out and used a solicitor. It was an interesting read though.

This question came up last week, although I don't think the appliance was named.

I used ipe, pronounced eepay, for my balcony decking at the last place. No treatment required, very hard wearing and resistant to insects and rot. Also expensive though.

Welcome to the forum. Nice looking property. Are you happy to have your names and address on the drawings or would you like to cover them.

The local fine sand in this area is pale grey which when added to Snowcrete produces mortar of a similar colour to your picture.

Welcome to BuildHub. It sounds like you've got some useful experience, but if you get stuck, there's plenty of people who will help on here.

You could use Cedral Click cladding instead of timber cladding. I have recently used it and if you want a painted timber effect it's very good.

We moved into our new timber frame, timber clad, self build in 2018. We had no problems insuring it, neither did the new owners in 2021 have any problems obtaining a mortgage or insurance when we sold it. Regulations may have changed in the meantime though.