How To Fit Insulation Between Roof Rafters
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How to fit insulation between roof rafters. Time to get the insulation finished and get this place warm. The flexible nature of gmw means that the roll or batts can be accurately cut and friction fitted between the rafters thereby minimising air gaps and maximising thermal performance. For rolled insulation place it between roof rafters. Using rigid boards as opposed to wool is a much more precise.
Where the insulation does not fill the total rafter depth the low emissivity foil facings can gain additional thermal benefit from the air spaces they face into. If you have a solid floor covering the roof rafters use the claw end of a hammer to pull the floor up in several locations and blow the insulation under the boards. Your rigid boards will need to be cut to fit the gaps between the rafters. I want to insulate my roof deck soffit ridge vents from the attic there is currently no insulation there.
A utility knife cuts through insulation well. 4 push the insulation in place between the. I don t want to mess with baffles batts because distances between the rafters vary and there are some more rafters added someone messed up the framing so baffles wouldn t work. For a ventilated roof fix battens on the inside of the rafters 50mm from the underlay to leave vented air spaces.
Replace the floorboards and then spray more insulation on top of it. Isover glass mineral wool gmw is another option for the between rafter insulation either as a roll or batt. Check out our how to video at the link below. Alternatively using a thermal laminate featuring rigid pir insulation pre bonded to a plasterboard means fitting the insulation and ceiling lining in one operation reducing storage cutting and fixing.
Measure the space between the rafters where the insulation will be placed and cut the insulation boards marginally wider than the space to ensure a friction fit upon installation. Isover glass mineral wool gmw is another option for the between rafter insulation as a roll or batt. When they are cut ensure there is a.