Polythene sleeved mineral wool and intumescent fire barrier for rainscreen systems.
Polythene sleeved mineral wool and intumescent fire barrier for rainscreen systems. Allows ventilation and drainage of the cavity under service conditions, whilst providing up to 120 minutes fire resistance performance.
Features and benefits:
The brackets should be securely mechanically fixed to the internal wall at maximum 500 mm centres using non-combustible fixings.
VRB 120 requires the additional installation of four x 75 mm long course wound 'pigtail' screws impaled though the outer intumescent facing side of the product at 250 mm centres. The pigtail screws should protrude by a maximum of 25 mm, making contact with the rear of the rainscreen cladding, to ensure that an open continuous ventilated airspace is maintained. Consult manufacturer's literature for further installation information.
P12/360 Mineral wool rigid batts
P12/40 Mineral wool rigid batts
AIM VRB 120
AIM Polythene sleeved wall cavity barrier
For vertical compartmentalisation.
Standard product features
Total cavity size less 25 mm.