High compressive strength, laminar roofing boards for use on warm pitched roofs.
Designed as a warm pitched roof thermal insulation system, Rockfall Overlay Boards are produced from stone wool with a high compressive strength to span and cover the rafters. The thermal performance of the roof can be further enhanced through the use of Rockwool Flexi slabs between the rafters The system is an effective way of providing an excellent thermal and acoustic performance for domestic, commercial and industrial buildings through the use of non-combustible insulation.
Rockwool Rockfall Overlay boards are CE and Key marked in accordance with BS EN 13162.
Non-combustible, achieving a classification of A1 in accordance with BS EN 13501-1.
Rockwool insulation products do not contain blowing agents with an ozone depletion potential (ODP) or global warming potential (GWP), are CFC-HCFC-HFC free and 97% recyclable. They will not react with metal components or cause loss of plasticiser from PVC cables and pipes.
Rockwool Rockfall Overlay Boards
|Standard product features|
Thermal conductivity (λ):
To BS EN 13501, Class A1.
The incorporation of Rockfall in a roof can provide noise reduction of 40 dB or more, depending on construction details.