Blue roof substrate

This expanded clay aggregate has been developed as a substrate/growing medium, to be used as part of the BauderBLUE STORMsub roof system. The single grade particles are used with other Bauder drainage products to provide a SUDS solution at roof level. The SUB-RE UK substrate is typically used below a Bauder green roof build up. The SUB-RE UK substrate provides an additional depth of substrate for the vegetation in the green roof systems. The substrate’s large void ratio allows high levels of water storage making it a suitable blue roof void layer.

This product does not require a Declaration of Conformity (DoC) or Declaration of Performance (DoP).

Technical data sheet

Product information

Characteristic Test method Unit Value
Size EN 1848-1 mm 4-8
Weight (saturated)   Kg/m³ 450
Weight (dry)    Kg/m³ 350
Compressive strength EN 1848-1 kPa 320-620

All further technical information is stated on the data sheet.