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Wallbarn Protecto-Drain 20P Geo is a water-storing drainage membrane, suitable for both extensive and intensive green roofs.
Commonly used for extensive and green roof applications. It is laid on the sub floor, insulation or waterproofing membrane, before substrate layer.
Protection and drainage layer with geotextile fabric bonded to one side.
Features and benefits:
Color | Black Grey |
Finish | Studded |
Material | High density polyethylene (HDPE) Guidance for specification option: High density polyethylene (HPDE) with bonded Geotextile Polypropylene |
Shape | Square |
Length | 10000 mm |
Width | 2000 mm Bespoke Guidance for specification option: Other widths available on special order. Manufacturer guidanceThis product comes in 2 x 10 metre roll. |
Height | 20 mm |
Warranty description | 15 year |
Uniclass | |
CAWS | Q37/130 Extensive green roof J40/47 High-density polyethylene/ polypropylene studded cavity drain membrane R16/380 Geocomposite drainage sheet for fin drains Q37/350 Drainage layer Q37/120 Simple intensive green roof Q37/110 Intensive green roof J40/290 High-density polyethylene/ polypropylene studded cavity drain membrane |
SKU Code | PD-20PGEO-Z |
Filter layer | Polypropylene fleece. Guidance for specification option: 100 g/m². Manufacturer guidanceGeotextile material. |
Stud height | 20 mm. |
Sheet thickness | 20 mm. |
Weight (minimum) | 800 g/m². Manufacturer guidanceGeotextile membrane weight: 140 g/m². |
Colour | Black. |
Performance characteristics | |
Water storage capacity | 6 L/m². |
Flow rate | 8.54 L/s•m. Guidance for specification option: Water drainage capacity at 20 kPa. |
Fire performance | Class E. |
CompressiveStrength | 150 kN/m². |
Temperature resistance | -30°C to +80°C. |
Roll length (minimum) | 10 000 mm. Guidance for specification option: As standard. Bespoke. Guidance for specification option: Consult manufacturer and insert requirements. |
Width (minimum) | 2000 mm. |
Material | High density polyethylene. Guidance for specification option: 700 g/m². Manufacturer guidanceStudded membrane material. |
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Material | High density polyethylene (HDPE) Guidance for specification option: High density polyethylene (HPDE) with bonded Geotextile Polypropylene |
Expected Life | 25 year |