Heat Insulation

1431 topics in this forum

1. Fabric and ventilation heat loss calculator 1 2 3 4 9

   By Jeremy Harris, June 15, 2016   

   • heat loss
   • ventilation
   • (and 4 more)

     Tagged with:

     • heat loss
     • ventilation
     • insulation
     • u value
     • heating requirement
     • modelling
   • 204 replies
   • 147.2k views
   • 
   • jack
   • February 12

2. What are the best prices for (EWI) EPS insulation at the moment?

   By oranjeboom, Friday at 14:29
   • 4 replies
   • 154 views
   • 
   • Onoff
   • 1 hour ago

3. Second Floor - VCL/Insulation Queries

   By Jammy5, 17 hours ago
   • 1 reply
   • 73 views
   • 
   • Redbeard
   • 16 hours ago

4. IWI for 1930s solid brick wall

   By Chloe, Sunday at 07:58
   • 4 replies
   • 179 views
   • 
   • Redbeard
   • Monday at 20:35

5. Insulate in Recess of Fireplace

   By BingoBango, Friday at 20:45
   • 0 replies
   • 65 views
   • 
   • BingoBango
   • Friday at 20:45

6. Which airtight tape is needed?

   By ruggers, February 11
   • 20 replies
   • 741 views
   • 
   • ruggers
   • March 6

7. Aerobarrier air tightness product/process

   By thaldine, February 21, 2022
   • 15 replies
   • 3.7k views
   • 
   • Nickfromwales
   • March 5

8. Damp condensation in built-in wardrobe

   By steveoelliott, February 25
   • 8 replies
   • 363 views
   • 
   • steveoelliott
   • March 3

9. Hot plant room 1 2

   By Benpointer, February 27
   • 29 replies
   • 740 views
   • 
   • SteamyTea
   • March 1

10. Target U-values… Cost/benefit sense check… What am I missing? 🤷🏻‍♂️ 1 2 3 4

    By fatgus, February 15
    • 87 replies
    • 4.7k views
    • 
    • craig
    • February 22

11. Air tightness tape yes, no?

    By Selfbuildsarah, February 12
    • 8 replies
    • 382 views
    • 
    • Nickfromwales
    • February 13

12. Spray foam on cold bridge steels 1 2

    By NCXo82ike, January 22
    • 36 replies
    • 1.1k views
    • 
    • Nickfromwales
    • February 10

13. How to attached studwall with cavity with no ceiling connection

    By Bruce, February 3
    • 11 replies
    • 449 views
    • 
    • Bruce
    • February 9

14. Internal insulation for block cavity walls 1 2 3

    By Julestools, January 9
    • 52 replies
    • 2.1k views
    • 
    • Roger440
    • January 30

15. Warm roof design using pozi joists mid build - to many holes in the conditioned space layer

    By andeebee, November 29, 2025   

    • insulation
    • posi-joists
    • (and 2 more)

      Tagged with:

      • insulation
      • posi-joists
      • warm roof
      • air tightness
    • 18 replies
    • 1.1k views
    • 
    • Russell griffiths
    • January 26

16. Fixing plasterboard to IWI

    By Hammertime, January 15
    • 10 replies
    • 644 views
    • 
    • Hammertime
    • January 26

17. How to make structure airtight

    By Silly Man, November 6, 2025
    • 3 replies
    • 784 views
    • 
    • Andeh
    • January 22

18. Insulating from the outside: wood fibre vs rockwool vs perforated polystyrene 1 2 3

    By Garald, October 18, 2024
    • 73 replies
    • 11.6k views
    • 
    • Garald
    • January 17

19. Recognised Construction Detail for Gable

    By Jammy5, January 16
    • 7 replies
    • 514 views
    • 
    • Jammy5
    • January 17

20. Maintaining air tightness with downlighter

    By Annker, January 14
    • 13 replies
    • 652 views
    • 
    • MikeGrahamT21
    • January 14

21. Detail of IWI on single skin / half brick wall for picky building control

    By Bruce, December 7, 2025
    • 13 replies
    • 977 views
    • 
    • Bruce
    • January 13

22. Where are all the Blown Cellulose Installers? 1 2

    By SBMS, June 24, 2024
    • 28 replies
    • 3.1k views
    • 
    • SBMS
    • January 12

23. Wooden subfloor with 4 inch joists and rockwool

    By Rocket Ron, January 11
    • 23 replies
    • 770 views
    • 
    • Iceverge
    • January 12

24. Recommendations for EWI in the East Midlands

    By Lemna gibba, January 7
    • 1 reply
    • 365 views
    • 
    • Russell griffiths
    • January 7

25. Retrofitting insulation in a dormer/ story and a half house

    By woodstream, December 1, 2025
    • 4 replies
    • 737 views
    • 
    • woodstream
    • January 7