The board’s role
The board is made from recycled polyester and combines water retention and drainage functions. It forms part of a roof build-up above the waterproofing. The complete roof is considered as an assembly, rather than as the board alone.
The board and the system
A board result describes the tested component. A system result relates to a defined build-up and test conditions. This distinction matters when using data for design, comparison and purchasing.
What to check in a data sheet
Check the product identity, thickness and dimensions, test method, units and conditions. Similar-looking numbers may describe different things.
Already specified?
Tell us the product reference in the specification and what you need. Enquiries can concern an individual component or the complete system.