How Duroid Building Foils work

A full range of Duroid Building foils is carried in Western Australia. From the standard light duty through to the new safetop a super heavy-duty foil to with stand the harshest elements.

 

Why Duroid Building Foil?

Building foils offer both an insulation and water resistant lining to walls and roofs and are the most cost efficient form of insulation available. They feature high thermal reflectivity and low emissity, keeping a home cooler in the summer and warmer in the winter. Foils also reduce the transfer of water vapour in the walls and roofs where it may cause damage to mass insulants and the building structure.
Building foils can be used separately as insulation, vapour barrier, sarking, support sheet, or in conjunction with fibrous material such as acoustic insulation.

Features and Benefits of Duroid Building Foils

• Strong, flexible and durable during installation.
• Long lasting - Correctly installed, they will last the life of the building.
• Impermeable to water and water vapour.
• Approved fire retardant to the Australian standards.
• Offer thermal insulation with high reflectivity and low emmisity.
• Protect building interiors from drafts and wind driven dust
• An excellent barrier for heat flow by radiation, convection and conduction.
• Provide a high degree of resistance to the passage of water vapour
• Prevent damage to mass insulants from condensation.
• Scuff resistant on one or both sides (depending on what type of foil is used). This feature ensures ease of handling and avoidance of damaging during installation.
• When installed in industrial buildings as an exposed internal roofing lining, the reflectivity is increased by 40%, resulting in improved and more even light distribution and savings on lighting costs.

Coverage and Roll Size

All Duroid Building Foils are available in the following roll sizes:

• 1350mm x 60m
  Area per roll 81m² , coverage 72m²
• 1350mm x 30m
  Area per roll 40.52m² , coverage 36m²
• 1350mm x 20m
  Area per roll 27m² , coverage 24m²

Performance

Med duty 839 Reinforced Foil

Flammability Test AS 1530, Part 2, 1973
Spread Factor	0
Speed Factor	0
Heat Factor	1
Flammability Index	1

Tensile Strength (ASTM D828)
Longitudinal Direction	9.1 kN/m
Transverse Direction	6.3 kN/m

Water Vapour Permeance (ASTM E96 Procedure E )
Creased	< 1.13 ng/Ns
Uncreased	< 2.26 ng/Ns

Beach Puncture Resistance (T.A.P.P.I T803m)	1.3J
Reflectivity of Foil Surface	0.95
Emissivity of Foil	0.05

All figures are averages only, not guaranteed minimums.
Testing Conditions: 22°C; 65% Relative Humidity.

Duroid Building Foil Product Range

*Certified to Australian Standard
**Finely Perforated to control moisture and prevent condensation, particularly in timber frame structures.

The difference between these grades is the physical strength due to one or two layers of kraft, type of reinforcing and weight of fire retardation adhesives. Certified heavy weight and heavy weight and medium foils have 2 layers and are scuff resistant on both sides. The lighter grades are scuff resistant on one side only.

Each grade is available with or without antiglare coating. Anti-glare is a blue coating on top of the aluminium foil surface. The coating is applied to prevent sun glare during installation.

MSDS available on request.

 

For further information on this and all other products please contact us.