We have had a velux put in, nd carpenters coming to make tunnel. However we have to put the insulation around it. This has gone into a lean to pitched roof. Building control want to see the insutlaiton and have mentioned 140mm,
We can’t get our head around this. Do we put 140mm of rockwool up on the sides and tack onto the wood, or use masking tape to fix, then plasterboard over the top, slotting into the grooves? Or do we use that Celotex stuff, confused,
Help appreciated
We can’t get our head around this. Do we put 140mm of rockwool up on the sides and tack onto the wood, or use masking tape to fix, then plasterboard over the top, slotting into the grooves? Or do we use that Celotex stuff, confused,
Help appreciated