http://www.npower.com/web/diyloftinsulation/index.htm

We’ve got together with Build Center and Rockwool to bring you a hassle-free way to buy DIY loft insulation:
  • GREAT PRICES - Compare our £3 a roll promotional offer^ to DIY stores and you'll see that npower DIY insulation makes sense. Remember to compare the m2 price as loft rolls vary in size
  • FREE DELIVERY - Order online and delivery to your door will be included as part of the offer. Don’t waste your time and money making 4 or 5 trips to the DIY store.
  • QUALITY MATERIALS - Rockwool insulation is a sustainable product that delivers effective thermal performance
  • SAFETY KIT INCLUDED - Safety goggles, safety mask, gloves and Installation Guide (which you can also read below) supplied and delivered with your insulation