There is 150mm of insulation in my loft that needs an additional 150mm on top of the existing 150mm to meet the new Energy performance certificate standard. I have the new insulation from B&Q on site. The area is 40m2 I have a loft ladder but no light fitted in the loft. The existing insulation is a little displaced where we have had spotlights fitted, this would need to be relaid and the new laid on top of the existing.
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