How To Install Roof Insulation Batts

The batts are located side to side on the rafter of the roof.

How to install roof insulation batts.

If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top. When installing energise each batt by giving it a light shake and gently bouncing it on its side to help the batt expand to the thickness specified on the label. Keep measuring cutting and installing until all of your roof has been covered. Standard r3 5 ceiling insulation batts are 185mm thick so depending on the roof pitch the batts may touch the underside of your roof at the edges of your ceiling.

However you need to leave an air gap of 20mm between the insulation and your roof. 430mm or 580mm work progressively around the perimeter of the building room. The key to a quality insulating job is tight fitting batts that completely fill the stud cavity with no voids or gaps. Push batts all the way to the back of each stud space and then pull out the front edges until they re flush with the face of the studs.

In new homes we recommend installing a combination of foil faced roofing blanket and roof batts if you live in an existing home then consider installing another layer of roof insulation on top of the existing batts. Both materials make a great physical barrier between the interior building and the metal roof. Installinsulation diyrenovations ceilinginsulation homeinsulation andrew from pricewise insulation shows you how to install ceiling insulation batts in a. For best results install the insulation with the top surface up.

Standing on your step ladder feed the first piece of insulation between the ceiling joists until it is laid flat. Fit insulation tightly between joists but do not compress insulation. Run the unfaced strips perpendicular to the joists and butt each strip tightly together to form an airtight blanket of insulation. Fiberglass batts or glass mineral wool metal roof insulation.

Insulation should be installed right to the eaves so the batt is 50mm over the outside wall. Roof insulation helps to reduce energy consumption by preventing heat loss during winter and heat gains during summer. The right way to insulate attics and cathedral ceilings with batts using certain t. Use wooden rod or other non conductive poker.

Check the joist width to determine the correct insulation batt width. Make sure to keep it away from any lights. You can do top quality work with only a few basic tools.