What sort of insulation is in my cavity walls?

[@dannymurphy1779]

Thanks that is really helpful, I remember I had about 10 of those holes on the back wall of my last house, made the wall look rather unsightly!

[@Domesticsurveys]

Thanks for the nice comment we do this for fun, so it is appreciated!

[@johnf3326]

We have that urea formaldehyde stuff. Its wierd! Just sort of disintegrates when you handle it. Don't know how good it is but obviously it can't be easily removed and replaced with something different

[@wajopek2679]

We have the same stuff. I’m hesitant to replace it and basically think something is better than nothing