Permo Light

Product Code: KU0043-04-05-1

Permo Light

Product Code: KU0043-04-05-1

Limits air leakage in a sealed roof application.

BBA approved low resistance membrane.

Product Description

Permo Light is a strong 3-layer vapour permeable roofing underlay suitable for warm and cold pitched roofs. This membrane allows the roof structure to breathe and is weathertight. It is suitable for cold non-ventilated tiled or slated roofs of any conventional plan and size.

Area of application

Suitable for Cold and Warm Roofs.

All zones with taped headlap.

Installation Tips

Permo Light should be installed in line with the details set out in the BBA approved certificate and the terms laid down in BS5533

An unsupported underlay should provide a drape between rafters sufficient enough to ensure that water will run away from the batten fixing nail penetrations allowing draining from the eaves gutter

Contact between the membrane and the roof covering should be avoided during and after installation



Features
Product code
KU0043-04-05-1
Roof Type
Pitched Roofing
Product Category
Vapour Permeable
Subcategory
Membranes
Product Family
Permo
Width
1.1 m
Length
250 m
Weight
8 kg
Packaging
Coverage per roll
55 m2
Pallet quantity
20
Packaged weight
160 kg
Technical Data
Colour
Grey
Material
Polypropylene
Material Description
A spunbond polypropylene, a white spunbond polypropylene and a linear low-density polyethylene film.
Roof type application
Cold and Warm Roof
BBA Standard Applicable - Cold roof
00/3749
BBA Standard Applicable - Warm roof
99/3622
Roof type for BBA standard
Cold Ventilated and Warm Non-Ventilated Pitched Roof Systems
Water vapour transmission (SD value)
0.03m
Water vapour resistance (MNs/g value)
0.15 MNs/g
Water vapour permeability
1350 g/m2 /day
Weight per m²
145
Wind zones BS5534 2014 Annex A
1-3
Tensile Strength Longitude
264
Tensile Strength Transverse
210
Nail Tear Strength Longitude
116
Nail tear strength Transverse
96
Fire rating
E
Installation temperature
-40°C to + 80°C
UV Stability
4 months
Certification
BBA, CE IAB
Technical Data
Colour
Grey
Material
Polypropylene
Material Description
A spunbond polypropylene, a white spunbond polypropylene and a linear low-density polyethylene film.
Roof type application
Cold and Warm Roof
BBA Standard Applicable - Cold roof
00/3749
BBA Standard Applicable - Warm roof
99/3622
Roof type for BBA standard
Cold Ventilated and Warm Non-Ventilated Pitched Roof Systems
Water vapour transmission (SD value)
0.03m
Water vapour resistance (MNs/g value)
0.15 MNs/g
Water vapour permeability
1350 g/m2 /day
Weight per m²
145
Wind zones BS5534 2014 Annex A
1-3
Tensile Strength Longitude
264
Tensile Strength Transverse
210
Nail Tear Strength Longitude
116
Nail tear strength Transverse
96
Fire rating
E
Installation temperature
-40°C to + 80°C
UV Stability
4 months
Certification
BBA, CE IAB
Features
Product code
KU0043-04-05-1
Roof Type
Pitched Roofing
Product Category
Vapour Permeable
Subcategory
Membranes
Product Family
Permo
Width
1.1 m
Length
250 m
Weight
8 kg
Packaging
Coverage per roll
55 m2
Pallet quantity
20
Packaged weight
160 kg

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