SuperFOIL SF40 is a high performance multi foil insulation offering exceptional value for money. It has been tested to the highest standards and is fully certified for use in the UK.

SuperFOIL SF40 maximises roof and wall insulation within an efficient amount of space.It has radiant reflective properties, reflecting unwanted heat from solar gain in summer and enhancing insulation in winter.

If you are looking to buy SuperFOIL SF40 by Boulder Developments, Your can purchase with confidence through Online Insulation, knowing that your order is very important to us.

Product Specification:

• Constructed from 36 layers of interlaced materials
• Has a tested R value of 3
• 58 in roofs & 4.04 in walls
• Ideal for new build, extensions and conversions and can be easily retrofitted as it does not waste valuable and expensive space
• Can be used to create an airtight barrier, unlike conventional glass fibre
• SF40 is air-tight and has a life expectancy of 50+ years
• Reduces dependency on chemical foam products and their associated gas emissions
• Compatible with all insulations
• To Super Insulate' existing glass fibre, add one layer of SF40 to maximise energy savings

Key Features:

SF40 SuperFOIL has BBA Agrément &LABC Registered System Approval.
SF40 SuperFOIL has a BBA certified R value of 3.47 in pitch roofs & 3.91R in walls.
Dupont ultra efficient nano coating technology.
SF40 SuperFOIL also acts as a radiant barrier to reflect excessive heat gain during the summer months as well as insulating throughout the year.
DUET Installation An over and under the rafter application consisting of two layers of SuperFOIL. SF40 + SF40 provides a U-value of 0.14.
COMBI Installation Use SuperFOIL with any other insulation including mineral wool or foam board to achieve any required insulation U-value.
SF40 SuperFOIL is ideal for use in walls and roof structures in new build and in renovation, refurbishment / extension projects.
SF40s technical specification means high performance from a small footprint.
Easy installation results in minimal waste. Superfoil is manufactured with 40% recycled materials and is recyclable at the end of its useful life.

Additonal Information:

Water Vapour Resistance 1200MNs/g
Resistance to water penetration W1
Flexibility at low temp. -40c
Tensile Properties - Length (After Ageing) 635 N/50mm
Tensile Properties - Width (After Ageing) 580 N/50mm

Fire Performance:

Reaction to Fire (Euroclass) - Class E (behind plasterboard)

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