DELTA-TERRAXX horizontal

Application

Waterproofed surfaces should be cleaned thoroughly so as to avoid damage to the waterproofing after the drainage sheet has been laid out. In green roofs the waterproofing should either be equipped to resist root penetration or be covered by a protective sheet.

Simply roll out the drainage sheet on top of the waterproofing or the surface, with the permanent-filtration geotextile facing up. Use a utility knife to cut sheets to length

To make an overlap, lift the cloth edge of the neighbouring sheet, push the connecting sheet underneath it, pull off the non-stick paper of the adhesive tape, and glue the sheets together.

If a sheet needs to be extended lengthwise, push the extension sheet under it by at least 20cm.

To keep sheets from slipping they may be held together with DELTA®-HAFTNÄGEL.

Drainage sheets installed in soil-covered roofs are capable of bearing the weight of a wheelbarrow directly and that of a wheel-loader when covered by a soil layer of no less than 20cm.

Material

A studded membrane made of special, high-density polyethylene and PP non-woven fabric.

Properties

Being of a double-layered material, DELTA-TERRAXX can be laid quickly from the roll, without having to change the soil; with 400 kN/M² is it extremely robust.
With a width of 2.4m the membrane is perfect for very quick installation.
The self-adhesive overlap edge ensures that overlaps are permanently and securely fixed.

Technical data

Stud height	approx. 9mm
Pressure resistance	approx. 400kN/m²
Volume of air between the studs	approx. 7.9 l/m²
Temperature resistance	-30°C to +80°C
Roll size	12,5 m x 2,4 m
Geocomposite for use in drain systems	D + F
Tensile strength	(EN 10319) MD 6kN/m CMD 6kN/m
Discharge behaviour	(EN 918) 40 mm
Characteristic opening width	(EN ISO 12956) 150 µm
Water permeability	(EN ISO 11058) 8 · 10^-² m/s within the level: (EN ISO 12958) 3.1 · 10^-³ m²/s at 20kN/m²