Let's have a look at the whole external wall system

Why A2-s1,dO are preferred over a straight A1 when specifying facade membranes?

Learning from Grenfell

Since the Grenfell Tower fire, there has been a great deal of time and effort spent understanding fire and smoke control that is needed in times of an unfortunate building fire. The use of combustible cladding highlighted what a high-rise building fire can create through intense fire, dense smoke and hot burning droplets.

Euroclass A1 or A2 should be the norm now.

For architects and façade engineers Euroclass A1 or A2 products should be the norm for non-combustibility or limited combustibility of an outer wall system particularly for high-rise buildings.
Installing an A2-s1,d0 vertical wall system is recommended within the ADB part 4 guide.

A2-s1,dO preferred over A1

Which functionality is essential for the lifetime and safety of a building?

Architects when specifying a vertical wall membrane as part of the façade system, should consider a membrane that is A2-s1,d0 for limited fire, limited smoke and no hot droplets, that is also breathable, water proof to W1with high UV protection.

Whilst an A1 membrane gives us the fire, smoke and hot droplets control we seek, it does not offer the other attributes of breathability to remove moisture from the building, offer the rain coat or water proofness to the outer wall and give the UV protection that an open façade will need.

A2-s1,dO preferred over A1

Doing the right thing for the occupants of the building

When it comes to a building's cost and safety, then all the above attributes should be considered.

An Euroclass A2-s1,d0 membrane, breathable, water proof, with UV protection has to be better than the current ADB guide of having membranes “exempt” from being Euroclass A2, this by definition allows a Class B-s3 membrane to be acceptable within a A2 wall system.

When membranes were made exempt from an outer wall system it took into account damp course and roof membranes, these are not considered as part of the outer wall system. Vertical wall membranes should no longer be part of the “exempt” list as Class A2-s1,d0 membranes are now available. Do not wait for ADB changes. Do the right thing now by selecting an A2-s1,d0 water proof and breathable membrane for your façade system.

Further topics

Learn more about maximum fire safety and creativity for your full façade system with Stamisol Safe One façade breather membrane Class A2-s1,d0

UK fire regulations for façades

Why all materials, which are part of an external wall should achieve a class A2-s1,d0 including facade membranes. Let's check, what experts say and why fire safety is everyone’s responsibility when designing or installing façades.

Read more...

UK fire regulations for façadesWhy all materials, which are part of an external wall should achieve a class A2-s1,d0 including facade membranes. Let's check, what experts say and why fire safety is everyone’s responsibility when designing or installing façades.Read more...
UK fire regulations for façadesWhy all materials, which are part of an external wall should achieve a class A2-s1,d0 including facade membranes. Let's check, what experts say and why fire safety is everyone’s responsibility when designing or installing façades.Read more...

The first façade membrane A2-s1,d0

Stamisol Safe One expands the design freedom for architects in creating facades with maximum fire safety:
— Life-saving membrane by being Euroclass A2-s1,d0
— Resistance to water penetration W1
— Excellent UV resistance, ideal for both open and closed façades

Read more...

The first façade membrane A2-s1,d0Stamisol Safe One expands the design freedom for architects in creating facades with maximum fire safety: — Life-saving membrane by being Euroclass A2-s1,d0— Resistance to water penetration W1— Excellent UV resistance, ideal for both open and closed façadesRead more...
The first façade membrane A2-s1,d0Stamisol Safe One expands the design freedom for architects in creating facades with maximum fire safety: — Life-saving membrane by being Euroclass A2-s1,d0— Resistance to water penetration W1— Excellent UV resistance, ideal for both open and closed façadesRead more...
New

Applications Façades A2

Stamisol Safe One can be used both for closed and partially open vertical façades with up to 50 mm joints or an open area up to 50 % especially for apartment blocks higher than 11 meters, hospitals, retirement homes, rehab centres, universities, schools, nurseries and building floor extensions.

Read more...

Applications Façades A2Stamisol Safe One can be used both for closed and partially open vertical façades with up to 50 mm joints or an open area up to 50 % especially for apartment blocks higher than 11 meters, hospitals, retirement homes, rehab centres, universities, schools, nurseries and building floor extensions.Read more...
Applications Façades A2Stamisol Safe One can be used both for closed and partially open vertical façades with up to 50 mm joints or an open area up to 50 % especially for apartment blocks higher than 11 meters, hospitals, retirement homes, rehab centres, universities, schools, nurseries and building floor extensions.Read more...

RIBA APPROVED CPD WEBINAR SEPTEMBER

Stamisol offers a RIBA Approved CPD Webinar: Euroclass A2 Vertical Membranes - how to achieve maximum fire safety Euroclass A2 for your complete external wall system with Stamisol Safe One façade breather membranes, especially for high-rise and high-risk buildings.
5th September 12:00 - 13:00

See full content of presentation...

RIBA APPROVED CPD WEBINAR SEPTEMBERStamisol offers a RIBA Approved CPD Webinar: Euroclass A2 Vertical Membranes - how to achieve maximum fire safety Euroclass A2 for your complete external wall system with Stamisol Safe One façade breather membranes, especially for high-rise and high-risk buildings.5th September 12:00 - 13:00
See full content of presentation...
RIBA APPROVED CPD WEBINAR SEPTEMBERStamisol offers a RIBA Approved CPD Webinar: Euroclass A2 Vertical Membranes - how to achieve maximum fire safety Euroclass A2 for your complete external wall system with Stamisol Safe One façade breather membranes, especially for high-rise and high-risk buildings.5th September 12:00 - 13:00 See full content of presentation...

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