Delta Systems incorporating DELTA® membranes to keep hydrostatic pressure away from walls, ceilings and floors keeping living spaces dry and insulated.
Delta systems can be used on domestic and/or commercial properties from small scale basement conversions to major public works, such as the London Underground. The channel tunnel for example claims over 70,000m² of DELTA®-MS.
The main components of the system are the membranes themselves. These are manufactured from virgin HDPE which is thermally alkaline stabilised. The stud heights vary between 4mm for DELTA®-FM, 8 mm for DELTA® MS 500 & DELTA® PT-Lath to 20 mm for DELTA® MS 20. The cavity created by the membrane contains between 5 and 10 Litres of space respectively. This is known as either the “Air gap” or the “Drained Cavity”, in wet situations. The cavity drain system forms a waterproof inner lining to the walls and floor whereby the water or dampness is collected and managed via a sump/pump station.