DavidFrancis

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DavidFrancis last won the day on September 27 2016

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About DavidFrancis

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  • About Me
    Not building a new house. Have a rubble stone house with a 1970s flat-roof extension and spend a fair bit of time on maintenance and small/medium sized improvements.

    Barely done any DIY until moving into this house, so find this site a useful way of improving my knowledge.

    Watch far too many TV programmes on building/renovating houses and like the idea of doing a self-build but the stress would probably give me a nervous breakdown.
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    South-west Lancashire

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  1. I was referring to the felt you linked to. As is often the case, I was not sure what Tony was talking about. Now see it is an undertile felt, which is something new to me. By coincidence Iko are based only a couple of miles from here.
  2. I used that Iko felt on a shed a couple of years ago. Thought it was rather flimsy. Used some Icopal Xtra-Gard this year and thought it more robust.
  3. I nearly had Peter Cox treat one of our bedrooms as the floor joints had woodworm holes, but then I did some reading, and just checked for new frass every couple of years. Not spotted anything yet. Joists are at sub 15%, some sub 10%, moisture, so pretty happy everything is OK.
  4. I'm not sure if you got my point. Apologies if you did. See here, for example, for the differences between heartwood and sapwood https://www.thesprucecrafts.com/heartwood-or-sapwood-for-your-projects-3536898. Because sapwood generally has a higher moisture content, it is much more susceptible to decay from rot or insects. A large piece of timber is likely to be mostly heartwood and so could still be pretty good from a structural point of view. That Peter Cox article isn't too bad, but you need to be very careful with woodworm "experts". There's been a great deal of mis-selling and over-treatment from people in the wood preservation and damp treatment business. I think these articles provide some useful info: https://buildingconservation.com/articles/woodworm/woodworm.htm and https://buildingconservation.com/articles/envmon/timber_decay.htm
  5. Could it be the soft sections are actually sapwood (as opposed to heartwood). I have a large lintel where the sapwood has decayed but the heart wood is fine (I hope!) If this is the case you may be OK as long as a decent section of timber is sitting on the wall and the rafter is also supported by a decent section at the top.
  6. My current gas cost is just under 2.5p/kWh. Electricity is just under 15p. So you'd need a very, very efficient ASHP to improve on unit costs. But then there's a standing charge of about £80/year for gas that could maybe be eliminated. Using an ASHP may produce less CO2, but I don't know enough about the current grid mix and efficiencies to comment. I think the ASHP installation costs could be greatly improved-on with shopping around. Look at @ProDave's blog for example.
  7. Just "wasting" time watching Building the Dream after lunch. It's a straw build and includes the inevitable trip to another house - straw built of course. Season 2, episode 11. Probably available on on All 4.
  8. 30p/metre at my BM here. Not too bad a trip from s. Manc https://www.cwberry.com/ProductDetail.aspx?p=01020061
  9. On ICF walls, I've read that ants can be a problem with EPS in the States. See here, for example: https://www.greenbuildingadvisor.com/article/if-ants-like-rigid-foam-should-we-stop-using-it No idea if British ants like it, though.😀
  10. Wasn't it @Pord67 on the straw house thread?
  11. But a brick/block house on conventional footings isn't quite the same as a straw house sitting on piles of tyres where those piles don't seem to be connected one-to-the-other. Might be good in an earthquake, though!
  12. SWMBO's father also started his working life in a power station. Some pipes were lagged with asbestos. The lads working there used to throw balls of asbestos at each other for a lark. He's still in good health at nearly 87.
  13. Is there anything to tie the house to the ground? Or are you relying on friction?
  14. Well I'd be interested to hear more details on your build and see some pictures!