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Energy Efficient & Sustainable Design Concepts

  1. Health risks associated with passive houses

    K78,
    • 182 replies
    • 125.5k views
    jack

  2. Checklist : Heating

    ToughButterCup,
    • 2 replies
    • 20.7k views
    ToughButterCup

  3. 'Fabric fifth' retrofit policy. A really interesting read.

    Square Feet,
    • 16 replies
    • 440 views
    Mike

  4. Passive house Shepards hut ?

    Waterworks,
    • 35 replies
    • 3.7k views
    Nickfromwales

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

    Novice,
    • 33 replies
    • 1.4k views
    Novice

  6. Bungalows near Jauja, in Peru

    Garald,
    • 1 reply
    • 324 views
    SteamyTea

  7. Passiv house costs.

    Oz07,
    • 71 replies
    • 3.4k views
    Mike

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

    RedRhino,
    • 5 replies
    • 1.6k views
    RedRhino

  9. 12 May - net zero day

    RedRhino,
    • 16 replies
    • 1.7k views
    JohnMo

  10. New CIBSE Domestic Heating Design Guide (2026)

    SimonD,
    • 2 replies
    • 2k views
    SimonD

  11. Real world feel of MVHR +heat system

    MPx,
    • 29 replies
    • 4.1k views
    Philippa01

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

    Don D,
    • 23 replies
    • 3.1k views
    JohnMo

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

    KrisStar,
    • 5 replies
    • 2k views
    saveasteading

  14. SIPS v ICF - is Phase shift really a factor?

    Muellar,
    • 40 replies
    • 4.7k views
    Nick Laslett

  15. PHPP modelling

    allthatpebbledash,
    • 4 replies
    • 2.2k views
    Redbeard

  16. New Self build, Northern Ireland

    Kevan Marshall,
    • 12 replies
    • 5.3k views
    Conor

  17. Top of the class for me .

    Pocster,
    • 27 replies
    • 4.4k views
    Pocster

  18. How much more might an air tight new build cost than a leaky new build?

    Tony L,
    • 85 replies
    • 16.7k views
    saveasteading

  19. Please help me understand air tightness rating

    Tony L,
    • 10 replies
    • 4k views
    Tony L

  20. Hempcrete PassivHaus (build in Australia)

    Aus_Doug,
    • 9 replies
    • 4.7k views
    Mike

  21. Divers and Barriers of Sustainable Materials in Construction

    MohammedTJ,
    • 1 reply
    • 3.2k views
    Big Jimbo

  22. Elmhurst SAP10 experience and Thermal Bridging

    HighlandHopeful,
    • 5 replies
    • 3.7k views
    HighlandHopeful

  23. Efficiency consultants?

    Tony K,
    • 1 reply
    • 3.1k views
    JohnMo

  24. 3 Weeks Left!!! Low Carbon Heating Technologies and Social Relations

    Lewis Hubbard,
    • 0 replies
    • 3.7k views
    Lewis Hubbard

  25. Airtightness barrier across terraced wall cavity

    Crispy75,
    • 3 replies
    • 3.7k views
    MikeGrahamT21

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