Energy Efficient & Sustainable Design Concepts

205 topics in this forum

1. Suds for dummies

   By Danny68, June 15, 2022
   • 13 replies
   • 2.1k views
   • 
   • saveasteading
   • June 16, 2022

2. Renovating - how to keep heat from the sun in the winter, and out in the summer

   By Garald, May 8, 2022
   • 3 replies
   • 1.6k views
   • 
   • Garald
   • May 9, 2022

3. ashp Measured heat use way lower than MCS calculation. ASHP sizing.

   By Jwenty, April 5, 2022   

   • mcs
   • heat loss
   • 19 replies
   • 3.7k views
   • 
   • Jwenty
   • April 5, 2022

4. Tony Tray Airtightness

   By Johnny Jekyll, April 11, 2021
   • 15 replies
   • 3.8k views
   • 
   • ruggers
   • March 7, 2022

5. Traditional Timber Frame + Passivhaus

   By Kingy, February 28, 2022   

   • timberframe
   • passivhaus
   • (and 9 more)

     Tagged with:

     • timberframe
     • passivhaus
     • insulation
     • air tightness
     • cold bridge
     • greenbuilding
     • greenbuildingforum
     • hemp
     • oak beams
     • stone walls
     • roof
   • 3 replies
   • 1.6k views
   • 
   • saveasteading
   • March 1, 2022

6. Alternative "weather compensation" control ideas 1 2

   By ProDave, February 19, 2022
   • 38 replies
   • 4.3k views
   • 
   • dpmiller
   • February 21, 2022

7. SAP calcs for extension

   By notreadyforthis, January 19, 2022   

   • sap
   • extension
   • (and 1 more)

     Tagged with:

     • sap
     • extension
     • glazing
   • 1 reply
   • 1.3k views
   • 
   • nod
   • January 19, 2022

8. Airtight Warm Roof - How?

   By Mr Blobby, January 19, 2022
   • 13 replies
   • 3.2k views
   • 
   • Mr Blobby
   • January 19, 2022

9. PVT heat pumps. Interesting?

   By Cognis0, November 17, 2021
   • 1 reply
   • 1.6k views
   • 
   • scottishjohn
   • November 19, 2021

10. Convection cleverness? Venting into the skylight?

    By puntloos, November 15, 2021
    • 10 replies
    • 1.3k views
    • 
    • jack
    • November 15, 2021

11. Why is my house so cold?! 1 2 3

    By Cognis0, October 24, 2021
    • 54 replies
    • 10.2k views
    • 
    • Cognis0
    • November 15, 2021

12. Checklist: Insulation

    By puntloos, November 14, 2021
    • 18 replies
    • 2.1k views
    • 
    • Marvin
    • November 14, 2021

13. Design considerations for new homes 1 2

    By SteamyTea, November 6, 2021
    • 27 replies
    • 3.1k views
    • 
    • billt
    • November 7, 2021

14. Can I avoid a cold bridge with balcony steel?

    By Kerry Rhodes, September 30, 2021
    • 7 replies
    • 3.2k views
    • 
    • Kerry Rhodes
    • October 1, 2021

15. Cold bridges in this design

    By puntloos, September 16, 2021
    • 6 replies
    • 1.7k views
    • 
    • AliG
    • September 20, 2021

16. SAP Calculation

    By CADjockey, August 19, 2021
    • 6 replies
    • 1.9k views
    • 
    • dpmiller
    • August 19, 2021

17. Major Issues Octopus App 1 2

    By canalsiderenovation, April 9, 2021
    • 42 replies
    • 6.7k views
    • 
    • Russdl
    • August 11, 2021

18. Sap ratings

    By nod, July 29, 2021
    • 8 replies
    • 2.1k views
    • 
    • Ferdinand
    • July 31, 2021

19. RSJ x Tony tray

    By Olf, July 4, 2021
    • 0 replies
    • 1.3k views
    • 
    • Olf
    • July 4, 2021

20. Air tightness membrane for hollow core ends

    By cwr, May 3, 2021
    • 14 replies
    • 4.3k views
    • 
    • Thorfun
    • July 1, 2021

21. White roof - reducing solar gain

    By Adam2, June 14, 2021
    • 11 replies
    • 1.6k views
    • 
    • SteamyTea
    • June 15, 2021

22. Wax (PCM)

    By MortarThePoint, June 5, 2021
    • 16 replies
    • 2.8k views
    • 
    • SteamyTea
    • June 9, 2021

23. Thermal Time Constant

    By MortarThePoint, June 5, 2021
    • 22 replies
    • 3.6k views
    • 
    • MortarThePoint
    • June 7, 2021

24. plasterboard and insulation

    By LSB, March 29, 2021
    • 8 replies
    • 1.9k views
    • 
    • LSB
    • March 29, 2021

25. BBC Sounds - Net Zero in the House

    By Ian, February 19, 2021
    • 5 replies
    • 1.9k views
    • 
    • Ferdinand
    • February 19, 2021