Installation Instructions
Earthwool® Multi-Use Roll is designed to be used over a range of applications, for detailed installation instructions refer to the specific install instructions linked to the application. These instructions should be read in conjunction with local standards AS 3999 or NZS 4246 and all applicable local, state and federal building regulations. Before you start installing, please make sure you are familiar with our Health and Safety Information contained in this document. Ensure that you use tools and equipment that are suitable for the intended application. This will include suitable safety equipment.
CEILINGS
Earthwool® Multi-Use roll can be used to insulate new or existing ceilings and an excellent product to top up exisitng ceiling insulation.
DO NOT START WORK UNTIL THE SITE IS SAFE!
Assess the ceiling condition and structure together with the method of installation you are to use based on the appropriate requirements established in the building code, site assessment and or plans provided.
TOOLS REQUIRED:
• Sharp knife for trimming insulation
• Ladder
• Suitable clothing (see our Health and Safety Information)
• Tape measure
• Non-conductive insulation stick for positioning insulation in hard to reach areas
• Kneeling board to span ceiling framing.
STEP 1
• Determine the most suitable product for your project and make sure that the product R-value meets your requirement. The product can be multi-layered to achieve the desired R-value.
• Where you have existing insulation that is level with the ceiling joists, you can install additional insulation over the top. Firstly, consider the condition of the existing insulation to check if suitable. It is recommended that this is installed at right angles to the existing insulation.
• Insulation is available in varying widths and thicknesses to suit most framing spaces.
• To calculate the number of packs needed, determine the area (m2) to be insulated by multiplying the length by the width or wall height. The number of m2 of insulation material is clearly marked on each pack. Divide the total area to be insulated by the m2 in a pack to determine the number of packs required (don’t forget to round up to the nearest whole pack). Allowances should be made for areas that are unable to be insulated.
STEP 2
• Don’t take the insulation out of the packaging until you’re in a position and ready to install.
• Before installation, gently agitate the insulation by gently shaking or bouncing it on its side until it recovers to the thickness stated on the label.
• Do not block ceiling vents and take care around downlights and other sources of heat. Consult the manufacturer’s instructions for appropriate clearances. Additional guidance is provided in AS 3999 and NZS 4246.
STEP 3
• Start installing the insulation at the far corners of the ceiling and work your way back towards the ceiling access.
• When installing insulation between ceiling joists, ensure you achieve a snug fit, avoiding any gaps.
• When installing insulation in truss roofs, ensure that insulation is firmly butted together to achieve a consistent layer of insulation without any gaps.
• Where required, use a sharp knife to cut the insulation to fit. It is important that when you cut the insulation that you avoid coming into contact with any electrical services.
• When installing insulation in a roof eave (i.e. where the roof joins the ceiling), make sure the insulation covers the top plate but is not in contact with the roof. It is important to maintain a 20mm gap between the roofing substrate and the insulation.
STEP 4
• Complete the final check of the insulation ensuring all areas have been insulated and that you have an even and consistent layer of insulation.
• Finish your project by removing all packaging from the ceiling and disposing of all rubbish and excess insulation responsibly.
STEP 5
• Once you have worked your way back to the ceiling access, make sure you insulate the ceiling access panel before exiting the roof space.
We recommend that once completed another person checks the work to ensure it has been installed according to required standards.
Earthwool® Multi-Use Roll is designed to be used over a range of applications, for detailed installation instructions refer to the specific install instructions linked to the application. These instructions should be read in conjunction with local standards AS 3999 or NZS 4246 and all applicable local, state and federal building regulations. Before you start installing, please make sure you are familiar with our Health and Safety Information contained in this document. Ensure that you use tools and equipment that are suitable for the intended application. This will include suitable safety equipment.
INTERNAL PARTITIONS AND EXTERNAL WALLS
• Earthwool® Multi-Use roll is an excellent product for the insulation of walls, available in 430mm and 580mm widths and can be cut to suit the stud spacings.
• Determine the width of insulation needed by measuring the typical distance between wall studs. When installing insulation between framing members, ensure that you achieve a snug fit avoiding any gaps, tucks and folds.
• It is recommended that you select products that have the same thickness as the cavity. In circumstances where the cavity is deeper than the product selected, adequate support must be provided.
• Without compressing, tuck insulation behind wiring, plumbing or ductwork whenever possible. Insulation can be partially cut or separated when fitting insulation behind wiring or plumbing fixtures.
DO NOT START WORK UNTIL THE SITE IS SAFE!
Assess the wall condition and structure together with the method of installation you are to use based on the appropriate requirements established in the building code, site assessment and or plans provided.
TOOLS REQUIRED:
• Sharp knife for trimming insulation
• Ladder
• Suitable clothing (see our Health and Safety Information)
• Tape measure
STEP 1
• Determine the most suitable product for your project. Walls can be insulated using rolls or batts.
• Insulation is available in varying widths and thicknesses to suit most framing spaces.
• To calculate the number of packs needed, determine the area (m2) to be insulated by multiplying the length by the width or wall height. The number of m2 of insulation material is clearly marked on each pack. Divide the total area to be insulated by the m2 in a pack to determine the number of packs required (don’t forget to round up to the nearest whole pack). Allowances should be made for areas that are unable to be insulated.
STEP 2
• Don’t take the insulation out of the packaging until you’re in position and ready to install.
• Before installation check that the product selected matches the specification.
• Ensure that the insulation has lofted to the nominal thickness, if required, gently agitate the insulation by gently shaking or bouncing it on its side until it recovers to thickness stated on the label.
• Where installing around wall lights or heat sources consult the appliance manufacturer’s instructions for appropriate clearances. Additional guidance is provided in AS 3999 and NZS 4246.
STEP 3
• When installing insulation between framing members, ensure that you achieve a snug fit avoiding any gaps, tucks and folds.
• It is recommended that you select products that have the same thickness as the cavity. In circumstances where the cavity is deeper than the product selected, adequate support must be provided.
• Make sure insulation fits snugly against top and bottom wall plates. The front face of the batt should be flush with the inside face of the framing.
• Where required, use a sharp knife to cut the insulation to fit. It is important that when you cut the insulation that you avoid coming into contact with any electrical services.
• For metal frame walls, install insulation according to the relevant building code. Friction fit one side of the roll into the metal C-channel and butt the other edge against the metal stud. Install insulation to cover the full height of the wall.
• Use off cuts to insulate small and hard to fit areas.
STEP 4
• Attention to detail is very important. Make sure all areas are insulated, behind electrical outlets, plumbing and services.
• Seal all penetrations in exterior walls with insulation or foam sealants.
STEP 5
• Complete a final check of the installation ensuring all areas have been insulated and that you have an even and consistent layer of insulation.
• Finish your project by removing all packaging and disposing of all rubbish and excess insulation responsibly.
We recommend that once completed another person checks the work to ensure it has been installed according to required standards.
(Last Updated : December 2023)