Glass fibre insulation Semi-cut for easy installation between timbers 3 Roll sizes stocked Loft roll insulation stocks levels are continuously changing at Glanvilles and while Isover is our normal stocked product, there maybe occasions where we have to offer a substitute brand to fulfil your order, which may be a slightly larger/smaller roll size, however, you will still pay the same per mtr rate. If your order is affected by this, a member of our team will call you to discuss the options
