DELTA®-TRELA ...

... is an elastic, air-gap textured breather sheet.

... can be used in all types of metal-clad pitched roofs and metal-clad walls.

... consists of a base sheet laminated with a 8 mm thick dimple-textured random-fibre mat.
... provides a permanent air gap under the cladding.

... drains off moisture.

... allows residual water vapour in rafters and sheathing to escape due to the high permeability (sd value apprx. 0.02 m) of the base sheet.

... reduces rain and hail pelting noise by up to 8 dB (certified by test report from Scientific and Technical Construction Centre, Brussels / Belgium).

... has closely spaced dimple texturing for reduced friction, permitting free thermal expansion and contraction of cladding.

DELTA®-TRELA is the optimum air-gap sheet for high-quality metal roofs.

Profit from DELTA® System.

Outside ... ... DELTA®-TRELA: the rugged air-gap / breather membrane composite. Protects immediately after installation and from there on out. Innen ... ... DELTA®-REFLEX vapour barrier sheet. The energy saver - rugged, highly flexible 4-layer composite material. Reflects heat and saves energy costs. Proven to reduce elec-trosmog. With the insulation system warranty. And of course a full range of specially designed accessories is available for the system.

... can be installed in any direction required, e.g. at structural details.