Choosing insulation for your home improvement out house build project. U values, vapour barrier, air tightness, PIR, cold bridging…. Where to start? I’ll talk you through my method, using this micro home build project as an example.
To download the materials spreadsheet for quantifying your insulation materials, go here….
https://buildbetterthings.com/resources
If you want to get in contact with me, I offer half hour and hourly slots and you can ask me anything about your project…
https://buildbetterthings.com/one-to-one-consults/
Some links to other vids I’ve made to help you….
For cutting floor joists to the right centres, see my video here:
Timber frame “how-to” for self builders - start with floor joists
https://youtu.be/Phekg0dspBo
0:00 into PIR insulation - characteristics, pros and cons
1:26 foil faced or tissue faced insulation, and lamda
1:44 Target U values - How to calculate thickness of insulation
2:21 How to quantify and order PIR insulation
2:23 How to cut insulation with no waste
3:45 Joist centres - 400mm or 600mm?
4:31 Running dimensions for cutting
4:50 How to cut insulation the right way - time lapse
6:06 Insulation thickness deeper than floor joists - use packers
6:39 How to support insulation between floor joists
7:03 Installing insulation with no gaps
7:39 Vapour barrier for floor insulation with chipboard?