Built-up flat roofing systems
An EXT.F.AA fire rated roofing system intended for both new work and overlay projects. Offering different warranty packages dependent on the underlay option selected. This will
ensure that you can tailor the system to your client’s requirements, and come in on budget.
SIGnature built-up flat roofing is a versatile system, which includes fire-rated torch-on cap sheets to provide safe, effective, long-lasting and guaranteed solutions for new or repair work. It is a proven system and is ideal for use on cold or warm roofs in most market sectors, including education, healthcare and commercial. SIGnature built-up flat roofing is our recommended system for specification in the CIF improvement for schools and academies initiative.
The SIGnature Torch On Cap Sheet is a fire retardant formulation, polyester reinforced, SBS, torch applied finishing layer. This cap sheet is utilised on both the 20 and 25 year systems and will achieve an EXT.F.AA fire rating as standard. It is available in two mineral finishes, black or green.
There are two different underlays that can be utilised within the system and it is this that will dictate the warranty period.
*Both of these underlays can be directly applied to a torch receivable Insulation Board
only, without the requirement of a venting base layer.
Other products used to provide a complete system dependent on specification and roof type:
Universal Torch On Venting Underlay
To be used as the venting base layer on all overlays to bitumen substrates where a partial bond is required.
To be used as the nailing prep layer on a Timber Deck Vapour
Control Layer (Torch Applied)
To be used over a primed substrate beneath the Insulation to prevent moisture contamination.
Self Adhesive Vapour Control Layer
To be used over a primed substrate beneath the insulation to prevent moisture contamination.
Quick Dry Primer
To be used to prime all timber and old bitumen surfaces prior to torch application.
Self Adhesive Primer
To be used to prime the roof surface