Topic: | Re:Re: How do you know? | |
Posted by: | Tony Colliver | |
Date/Time: | 19/09/21 13:10:00 |
No, it doesn't *HAVE* to be combustible but fifty of my own hard-earned pounds says it nearly always is. In fact, I say "nearly" only because I don't have time to conduct some quick research based on this particular aspect. I'm still willing to put my money where my mouth is though as I have spent 30+ years taking a keen interest in such matters. Non-flammable (or, more realistically, *LESS* flammable) insulation alternatives are typically more expensive - not least because you have to install upwards of twice the thickness due to the 'U' values of the stuff usually being around half of the stuff that was used on Grenfell (and endless other places as well). Even rockwool will burn if it gets hot enough and it also has a nasty habit of sliding down within the cavity in which it is installed over time as well - thus rendering it almost useless (at least when installed inside cavity walls anyway). |