Insulated roof and wall breather underlay membrane.
Suitable for use as an insulating breather membrane.
An insulated roof and wall underlay membrane that is airtight and ventilated. When used in conjunction with standard insulation products, the product enhances U-values through an integrated insulation layer that is laminated to a high emissivity surface.
Manufactured using hydrophobic and self-extinguishing polyester fibre created from recycled material. Aluthermo RoofReflex® has integrated sealing tapes to maintain the airtight seal at all joints. Suitable for use below tiles and cladding.
Features and benefits:
Non-woven and recycled PE insulation
(w x l x d)
1.4 x 10 x 0.0037 m
H20/150 Sheet cladding
H20/155 Sheet cladding
H21/110 Vertical timber weatherboarding
H21/111 Horizontal timber weatherboarding
H21/115 Vertical timber weatherboarding
H21/116 Horizontal timber weatherboarding
H21/130 Breather membrane
H21/20 Breather membrane
H30/110 Fibre cement
H30/120 Fibre cement
H30/350 Breather membrane
H30/50 Breather membrane
H31/280 Breather membrane
H31/55 Breather membrane
H60/105 Clay roof tiling
H60/110 Clay roof tiling with counterbattens
H60/120 Concrete roof tiling
H60/125 Concrete roof tiling with counterbattens
H60/145 Clay vertical tiling
H60/155 Concrete vertical tiling
H61/105 Roof slating
H61/110 Roof slating with counterbattens
H61/120 Vertical slating
H62/105 Roof slating
H62/110 Roof slating with counterbattens
H62/120 Vertical slating
H62/125 Roof slating
H62/130 Roof slating with counterbattens
H62/140 Vertical slating
H62/145 Roof slating
H62/150 Roof slating with counterbattens
H64/110 Wood shingle/ shake roofing
H64/120 Wood shingle/ shake roofing with counterbattens
H64/130 Vertical wood shingle/ shakes
H65/105 Clay roof tiling
H65/110 Clay roof tiling with counterbattens
H65/115 Concrete roof tiling
H65/120 Concrete roof tiling with counterbattens
H65/125 Reconstituted slate roof tiling
H65/130 Reconstituted slate roof tiling with counterbattens
H65/135 Ceramic slate roof tiling
H65/140 Ceramic slate roof tiling with counterbattens
H67/110 Metal roof tiling
H67/120 Metal roof tiling with counterbattens
H67/130 Metal vertical tiling
H92/120 Rainscreen cladding
K21/111 Wood floating floor
M30/265 Building paper
P10/320 Breather membrane
P10/65 Breather membrane
To BS EN 13859-1.
To BS EN 13859-2.
CE-marked to EN 13859-1 and -2.
Surface area per roll
Operating temperature range
-40 to 80°C.
Fire resistance classification
Thermal core resistance (R-value)
0.0366 W/m·K to EN 12667.
Thermal resistance together with one unventilated air gap, wall (R-value)
Resistance to water penetration
W1 to EN 1928.
Water vapour transmission
Tensile property, longitudinal
Tensile property, traversal
150–275 N/50mm to EN 12311-1.
Resistance to tearing, longitudinal
Resistance to tearing, traversal
175–280 N to EN 12310-1
Standard deviation (Sd) value
<0.061 m (±0.01) to EN 12572:2003.
Resistance to air penetration
0.000 m³/m³.h.50.pa to EN 12114.
Novia Breather Membrane Lap Tape.
Country of material origin
Hydrophobic and self-extinguishing polyester fibre
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