iTP SafeOne (SF400)


Class A2 rated Housewrap breathable membrane

Flame Retardant Breathable Housewrap for all wall applications.

Engineered with superior flame retardant properties. It has excellent water vapour resistance and breathability.

Flame retardant materials are self-extinguishing, resistant to catching fire, reduce flammability, and inhibit, suppress or delay the production of flames.

SafeOne has a Class A2 (A2-s1,d0) fire rating.

Is suitable for use on 18m+ builds (11m+ in Scotland)

Can be used on partially open facades with gaps up to 50mm.


Available for delivery direct from the manufacturer with an approx. lead time of 2-3 days.

Availability Indicators

Priced on Application: Please contact me with your SafeOne requirements so I can check availability, lead times and costs.

iTP reserves the right to change stocked products - while we will do all we can to keep on top of changes, availability and lead times my vary.

  • Generally 1 to 3 working days for delivery
  • Generally 1 to 5 working days for delivery
  • Generally 5 to 10 working days for delivery
  • Special request or made to order item, allow extended lead times. Minimum order levels may apply.
  • Please call to check availability and approximate lead times

Delivery charges will be calculated at check-out. Please visit our Ordering From Us page for further details on minimum order levels and delivery charges. If you have any queries, please do not hesitate to contact me via our Contact Form or on 01903 899 898.

Product Application

Fire Retardant breathable housewrap membrane for wall applications

iTPs flame retardant Class A2 breathable housewrap membrane, SafeOne, is suitable for use in all wall applications as well as roofs.

Product Make-up

Core: SafeOne is multi-layer non-woven breathable coated fibreglass fabric with superior self-extinguishing and flame retardant properties.

Product Properties

Weight310 g/m² 
Roll Length20m 
Roll Width2.65m 

Product Performance

Flame RetardantClass A2-s1,d0 
Tensile StrengthMD 1400 / XD 1400 
Water Vapour Resistance0.6 MNs/g 
Water tightnessW1 

Safe One breather membrane is Class A2-s1,d0 when free hanging or directly installed on a supporting substructure with a flame retardant classification of A1 or A2.