Safe One® A2 - A2 Limited-combustible Breather Membrane - Breather Membranes
Verified by manufacturer 7 days ago
Euroclass A2-s1,d0 limited-combustible breather membrane for use in vertical wall installations behind closed or partially open facades & rainscreens. Suited to high-rise & high-risk builds.
Application
SAFE ONE® A2 is suitable for all vertical wall applications including partially open cladding with joints up to a maximum 50mm and an overall UV exposure of 50%. SAFE ONE® A2 can also be used in roof applications.
Storage & handling:
Handle the membrane with care. Ensure that the membrane is not folded or creased. Store the membrane horizontally away from sunlight in a cool, dry sheltered store. Store Glue cartridges upright.
Installation:
A continuous, solid supporting structure or framework must be provided for all applications. The supporting structure can be wood, aluminium, steel or concrete. SAFE ONE® A2 achieves a fire rating Euroclass A2-s1,d0 when free hanging or when directly installed on a supporting structure with a flame-retardant classification of A1 or A2.
The black coated side faces to the outside.
Do not glue the whole membrane surface. Create glue lines /gird lines maximum 600 mm vertical or 600 mm horizontal centres.
Patch any damaged areas using membrane cut into a circle shape so that the corners do not peel back. The circular patch should be 25 mm larger than the damaged area.
Overlaps:
- It is possible to fix the membrane mechanically with staples.
- Seal overlaps using Stamcoll Safe Glue Cartridge 310 mls.
- Vertical laps should be 50 mm minimum.
- Horizontal laps should be 50 mm minimum. Each cartridge covers approx 8 LM with a 8 mm bead.
- Stamcoll Safe Glue Cartridge is tested as a system with SAFE ONE® A2 to EN 13501-1
- Store glue in a warm environment. Do not use below 5℃ or over 40℃
Description
SAFE ONE® A2 is a limited-combustible breather membrane which is Euroclass rated A2-s1,d0.
SAFE ONE® A2 is the optimum solution for use behind open-jointed rainscreen facades. Combining long-term UV stability with a plain black and unbranded finish. It can be used behind cladding with gaps up to 50mm and a maximum overall exposure of 50%.
This membrane comes with a market-leading range of attributes including winning the 2022 CIBSE Façade & Design Engineering award.
The W1 water tightness rating makes SAFE ONE® A2 suitable for use on both wall and roof applications.
Features and benefits:
- A2-s1,d0 limited-combustible breather membrane.
- Independently tested to EN 13501-1.
- Compliant for use in high-rise and high risk buildings.
- Compliant to Approved Document B.
- Plain black unprinted for use behind open-jointed rainscreen facades with a gap up to 50 mm.
- W1 water tightness rating.
- Excellent breathability.
- 7,000 mm waterproofing.
- UV resistance 5,000 hours extremely heat resistant (up to 250℃).
- Winner of the 2022 CIBSE Façade & Design Engineering award.
- 10 year warranty.
- CE approval.
General information
Color | Black |
Material | Glass Fibre |
Shape | Other Guidance for specification option: Roll. |
Length | 20000 mm |
Width | 2650 mm |
Warranty description | Lifetime Guidance for specification option: Lifetime guarantee for non-combustibility. Ten year Guidance for specification option: Ten year warranty for UV resistance (Safe One®). |
Uniclass | |
CAWS | H65/235 Vapour-permeable underlay H67/24 Vapour-permeable underlay H64/22 Vapour-permeable underlay H61/22 Vapour-permeable underlay H41/120 GRP double-skin insulated panel cladding H41/110 GRP single-skin cladding H60/22 Vapour-permeable underlay P10/65 Breather membrane H91/305 Vapour-permeable underlay H31/55 Breather membrane H60/235 Vapour-permeable underlay H30/50 Breather membrane H22/20 Breather membrane H21/20 Breather membrane H65/22 Vapour permeable underlay P10/320 Breather membrane H31/280 Breather membrane H30/350 Breather membrane H22/130 Breather membrane H21/130 Breather membrane H67/290 Vapour-permeable underlay H64/307 Vapour-permeable underlay H92/785 Breather membrane H62/235 Vapour-permeable underlay H61/235 Vapour-permeable underlay |
Specification data - Vapour-permeable sheets
Standard | To BS EN 13859-1.Guidance for specification option: Flexible sheets for underlays for roofs. To BS EN 13859-2.Guidance for specification option: Flexible sheets for underlays for walls. |
Performance criteria | |
Water vapour properties | To EN ISO 12572, <0.30 m. |
Fire performance | To EN 13501-1, class A2-s1,d0. |
Tensile properties | 1400 N/50 mm (MD); 1400 N/50 m (CD). |
Class (minimum) | W1. |
Material | Glass-fibre. |
Form | Non-woven. |
Weight (minimum) | 310 g/m². |
Colour | Black. |
Roll size | 2.65 x 20 m. |
Roll weight | 18.0 kg. |
Sustainability data
Material | Glass Fibre |
Literature
Literature type
Safe One® - Declaration of Performance R4-9
Safe One® A2 - Technical Datasheet R3-2
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