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Energy Efficient & Sustainable Design Concepts

216 topics in this forum

  1. Health risks associated with passive houses 1 2 3 4 8

    By K78,
    • 182 replies
    • 123.7k views

  2. Checklist : Heating

    By ToughButterCup,   
    • 2 replies
    • 20.3k views

  3. Retrofitting air-to-air cooling in a Passivhaus – maintaining airtightness

    By Novice,
    • 3 replies
    • 54 views

  4. Passiv house costs. 1 2 3

    By Oz07,
    • 71 replies
    • 2.4k views

  5. Energy performance numbers for H1 2026 - MBC 'high performance' timber frame + solar + battery

    By RedRhino,
    • 5 replies
    • 1.4k views

  6. 12 May - net zero day

    By RedRhino,
    • 16 replies
    • 1.4k views

  7. New CIBSE Domestic Heating Design Guide (2026)

    By SimonD,
    • 2 replies
    • 1.8k views

  8. Passive house Shepards hut ? 1 2

    By Waterworks,
    • 33 replies
    • 3k views

  9. Real world feel of MVHR +heat system 1 2

    By MPx,
    • 29 replies
    • 3.7k views

  10. Interpreting Heat Loss calculations and designing systems for a new build

    By Don D,
    • 23 replies
    • 2.8k views

  11. External door installation - how to find 3rd party doing "warm/system install" i.e. Siga tapes etc.

    By KrisStar,
    • 5 replies
    • 1.8k views

  12. SIPS v ICF - is Phase shift really a factor? 1 2

    By Muellar,
    • 40 replies
    • 4.2k views

  13. PHPP modelling

    By allthatpebbledash,
    • 4 replies
    • 2k views

  14. New Self build, Northern Ireland

    By Kevan Marshall,
    • 12 replies
    • 5.1k views

  15. Top of the class for me . 1 2

    By Pocster,
    • 27 replies
    • 4k views

  16. How much more might an air tight new build cost than a leaky new build? 1 2 3 4

    By Tony L,
    • 85 replies
    • 15.8k views

  17. Please help me understand air tightness rating

    By Tony L,   
    • 10 replies
    • 3.8k views

  18. Hempcrete PassivHaus (build in Australia)

    By Aus_Doug,   
    • 9 replies
    • 4.5k views

  19. Divers and Barriers of Sustainable Materials in Construction

    By MohammedTJ,
    • 1 reply
    • 3k views

  20. Elmhurst SAP10 experience and Thermal Bridging

    By HighlandHopeful,
    • 5 replies
    • 3.5k views

  21. Efficiency consultants?

    By Tony K,
    • 1 reply
    • 2.9k views

  22. 3 Weeks Left!!! Low Carbon Heating Technologies and Social Relations

    By Lewis Hubbard,
    • 0 replies
    • 3.5k views

  23. Airtightness barrier across terraced wall cavity

    By Crispy75,
    • 3 replies
    • 3.5k views

  24. AeroBarrier - a shortcut to air tightness?

    By LnP,
    • 6 replies
    • 4.1k views

  25. How to calculate heat load… 1 2 3

    By G and J,
    • 59 replies
    • 16.7k views
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