Green Building Forum - Are all 'grey beads' the same?

Are all 'grey beads' the same?

Osprey — Mon, 09 Jan 2023 15:03:02 +0000

I am looking into CWI for my 1920s house, and apparently bonded EPS beads would be the best solution. However, I see a lot of references to graphite/platinum/grey beads, and a wondering if all beads were pretty much the same now, or if I should be looking for anything specific.

For instance, my local installer claims to use Evobead, which claims to have the appropriate 0.033 W/mK thermal rating, but just seems to say the beads are 'grey'. Otherwise, I need to go to a local branch of a national company for e.g. Thermabead 'carbon bead', or similar.

My normal preference would be to go for a local company.

Anybody have any thoughts/knowledge on this? Thanks.

Are all 'grey beads' the same?

Osprey — Thu, 12 Jan 2023 12:37:19 +0000

As far as I can find out, the answer to my question is 'Yes' - apart from claimed percentage use of recycled materials.

Are all 'grey beads' the same?

tony — Thu, 12 Jan 2023 18:10:50 +0000

ðŸ‘

Are all 'grey beads' the same?

jms452 — Sat, 14 Jan 2023 09:33:53 +0000

Check the certificate and check the lamda value is << 0.04W/mK

We used ecobead - also grey and also 0.033
https://springvale.com/ecobead/