pipe insulation

More unidentified pipe lagging in my undercroft. Please see pic below - what is this stuff? Any chance it contains asbestos? Or is it some sort of mineral wool? Any advice welcome!

I'm new to the forum so apologies for any daft questions. Was clearing out my undercroft the other day and came across what looks like some old pipe insulation. Photos attached, brown in colour, there are bits of it all over the place so must break up easily. Don't know how long it's been there...

hi I am installing a cooker hood in the kitchen. My problem (potentially) is that the 150mm hole I’ll have to make in the outside wall is within an inch of two 22mm central heating pipes. The problem being is that of ensuring those pipes are sufficiently insulated, although there will, of...

Good afternoon, im looking at the Kooltherm FM Pipe Insulation but am not sure how to calculate what thickness I need for out central heating, I downloaded a PDF from their website but it made no sense to me, does anyone have an easy to follow guide for assessing the thickness needed? The...