SOLID WALL (INTERNAL)

How To Install

Internal Solid Wall Installation

Attach a timber frame to the existing solid wall by installing the correct size vertical battens (see chart) to the wall at a maximum of 600mm centres. Batten at the top and bottom of the wall, and around any doors or windows. SuperFOIL can then be applied directly to battens either horizontally or vertically.

When applying horizontally, start at the bottom of the wall working upwards with each layer. For vertical installations, start at the top of the wall and roll the insulation downwards. 

When fitting the insulation, ensure to keep the product taut whilst stapling into place. Staples should be placed at regular intervals of 50mm-100mm. Then simply cut the SuperFOIL to the required length and repeat the process with the next layer, ensuring a minimum of a 50mm overlap between joints.

At the floor & ceiling trim SuperFOIL allowing for a small overlap, seal the joins using SuperFOIL superior foil tape.

Ensure all joints, tears or cuts are sealed fully using SuperFOIL 100m foil tape to achieve an airtight finish. 

To finish the installation, install the correct size counter battens on top of the SuperFOIL to create an air gap. The internal finish is then fixed onto the battens in line with manufacturer’s recommendations.

Dachausbau, Wärmeschutz, Dachkammer
ProductMinimum Batten SizeStaple Size Required
SF19+38mm20mm
SF4050mm30mm
SF6063mm40mm

Ideal Products For Internal Applications

SF19+-3

SuperFOIL SF19+

  • 2.53 R VALUE

    R Value of 2.53 When used in a roof

  • 45mm THICK

    1.5m Wide by 10m Long

SF40-3

SuperFOIL SF40

  • 3.7 R VALUE

    R Value of 3.7 When used in a roof

  • 65mm THICK

    1.5m Wide by 10m Long

SF60-3

SuperFOIL SF60

  • 4.48 R VALUE

    R Value of 4.48 When used in a roof

  • 100mm THICK

    1.5m Wide by 8m Long

Choose Your Solution

Use the charts below to find the ideal combination of insulations for your project

Internal Wall - Diagram2
SuperFOIL Product Below Rafters SuperFOIL Product Above Rafters
No Additional Insulation SF19BB SF40BB
No Additional Insulation N/A 0.41U 0.26U
SF19+ 0.34U 0.26U 0.20U
SF40 0.26U 0.17U 0.14U
SF60 0.20U 0.14U 0.12U
SuperFOIL Product Mineral Wool / Glass Fibre / Sheeps Wool - 0.044W/mK
No Additional Insulation 25mm 50mm 75mm 100mm 125mm 150mm 175mm 200mm 225mm 250mm 275mm 300mm
SF19+ 0.34U 0.29U 0.25U 0.23U 0.20U 0.19U 0.17U 0.16U 0.15U 0.14U 0.13U 0.12U 0.12U
SF40 0.26U 0.23U 0.20U 0.19U 0.17U 0.16U 0.15U 0.14U 0.13U 0.12U 0.12U 0.11U 0.10U
SF60 0.20U 0.19U 0.17U 0.16U 0.15U 0.14U 0.13U 0.12U 0.11U 0.11U 0.10U 0.10U 0.09U
SuperFOIL Product Mineral Wool / Glass Fibre / Sheeps Wool - 0.037W/mK
No Additional Insulation 25mm 50mm 75mm 100mm 125mm 150mm 175mm 200mm 225mm 250mm 275mm 300mm
SF19+ 0.34U 0.28U 0.24U 0.22U 0.19U 0.17U 0.16U 0.15U 0.14U 0.13U 0.12U 0.11U 0.11U
SF40 0.26U 0.22U 0.20U 0.18U 0.16U 0.15U 0.14U 0.13U 0.12U 0.11U 0.11U 0.10U 0.10U
SF60 0.20U 0.19U 0.17U 0.16U 0.15U 0.14U 0.13U 0.12U 0.11U 0.11U 0.10U 0.10U 0.09U
SuperFOIL Product Mineral Wool / Glass Fibre / Sheeps Wool - 0.032W/mK
No Additional Insulation 25mm 50mm 75mm 100mm 125mm 150mm 175mm 200mm 225mm 250mm 275mm 300mm
SF19+ 0.34U 0.28U 0.24U 0.21U 0.18U 0.16U 0.15U 0.14U 0.13U 0.12U 0.11U 0.10U 0.10U
SF40 0.26U 0.22U 0.19U 0.17U 0.16U 0.14U 0.13U 0.12U 0.11U 0.11U 0.10U 0.09U 0.09U
SF60 0.20U 0.18U 0.16U 0.15U 0.13U 0.12U 0.12U 0.11U 0.10U 0.10U 0.09U 0.09U 0.08U
SuperFOIL Product PIR Foam Board - 0.022W/mK
No Additional Insulation 25mm 50mm 75mm 100mm 125mm 150mm 175mm 200mm 225mm 250mm 275mm 300mm
SF19+ 0.34U 0.26U 0.21U 0.18U 0.16U 0.14U 0.13U 0.12U 0.11U 0.10U 0.09U 0.09U 0.08U
SF40 0.26U 0.21U 0.18U 0.16U 0.14U 0.12U 0.11U 0.10U 0.10U 0.09U 0.08U 0.08U 0.07U
SF60 0.20U 0.17U 0.15U 0.13U 0.12U 0.11U 0.10U 0.09U 0.09U 0.08U 0.08U 0.07U 0.07U
SuperFOIL Product Phenolic Foam Board - 0.019W/mK
No Additional Insulation 25mm 50mm 75mm 100mm 125mm 150mm 175mm 200mm 225mm 250mm 275mm 300mm
SF19+ 0.34U 0.25U 0.21U 0.17U 0.15U 0.13U 0.12U 0.11U 0.10U 0.09U 0.09U 0.08U 0.08U
SF40 0.26U 0.21U 0.17U 0.15U 0.13U 0.12U 0.11U 0.10U 0.09U 0.08U 0.08U 0.07U 0.07U
SF60 0.20U 0.17U 0.15U 0.13U 0.12U 0.10U 0.10U 0.09U 0.08U 0.08U 0.07U 0.07U 0.06U

FIXING DETAILS

Floor Junction

At the floor junction, overlap the SuperFOIL onto the floor substrate and seal with SuperFOIL Foil Tape and mastic where possible to ensure an airtight finish. 
Fix the product with timber battens installed around the perimeter of the floor. 

Ceiling Junction

At the ceiling junction, overlap the SuperFOIL onto the ceiling and seal with SuperFOIL Superior Foil Tape and mastic where possible to ensure an airtight finish.
Fix the product with timber battens around the perimeter of the ceiling. 

Pipes,Vents & Holes

At penetrations such as vent ducting, pipework etc, SuperFOIL should be trimmed to ensure there are no gaps around the penetration.
Using 100mm Superior Foil Tape ensure the SuperFOIL is well sealed around the penetration to create an airtight barrier. This can be achieved by using small sections of tape and working around the penetration.

Window & Door Detail

Install SuperFOIL using the correct method for your application.
To finish installation around windows & doors, simply trim the SuperFOIL up to the frame and staple the insulation to the surrounding framework where possible.
Finish installation by sealing all joints with SuperFOIL 100mm Foil tape. 

Attach SuperFOIL to rafters using correct method for your application.
At the purlin, cut the SuperFOIL to the correct length to be able to be passed underneath the purlin with a small amount of product on the opposite side.
Join the next piece of insulation, ensuring to tape the joint with SuperFOIL 100mm foil tape.
Finish the installation by installing counter battens directly on top of the SuperFOIL to the rafters.

Install SuperFOIL using correct method for your application.
To finish installation around skylights or Dormer windows, simply trim the SuperFOIL up to the frame and staple the insulation to the surrounding framework where possible.
Finish installation by sealing all joints with SuperFOIL 100mm Superior foil tape.

UNSURE WHERE TO START?

Our FREE guide gives you all the information on saving time and money when insulating your home, and how to really make a difference to the comfort of your rooms.

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