Further technical information such as composition and manufacture, size and weight, performance and sitework...

Composition and manufacture

Kingspan nilvent® comprises a laminated three-layer polyolefin construction. The top layer provides protection from UV rays and mechanical damage. The middle layer is the functional layer. The bottom layer provides abrasion resistance. Kingspan nilvent® has a Light Grey upper surface. It is manufactured to the highest standards under a quality control system approved to ISO 9001:1994.

Size and weight

Roll length: 50m. Width: 1.5m. Thickness: 0.5mm.
Area per roll: 75m2.
Weight: 0.13kg/m2.
Roll weight: 11.25kg.


Kingspan nilvent® achieves a longitudinal and transverse tensile strength of 9.5N/mm2 when tested in accordance with BS EN ISO 527-1:1996. It achieves nail tear strength of 224N in transverse direction, and 292N in longitudinal direction when tested in accordance with BS EN 12310-1:2000. Kingspan nilvent® achieves a Mullen burst strength of 570kN/m2 when tested in accordance with BS 3137:1972 (1995).

Effect of fire

The use of Kingspan nilvent® does not affect the fire rating of a roof construction.

Moisture properties

Kingspan nilvent® achieves a water-vapour resistance of 0.17MNs/g when tested in accordance with BS 3177:1959. It achieves a liquid water-penetration resistance of >2m when tested in accordance with BS EN 20811:1992.


Products are as standard CFC/HCFC free with zero Ozone Depletion Potential (ODP).

View Product Entry
Kingspan Insulation

Kingspan Insulation

Insulation boards for low energy low carbon buildings. Optimum, premium and high performance rigid insulation products for building fabric applications, including roofs, walls and floors.

Our range of insulation boards includes Kooltherm,...
View company profile
T(01544) 388 601
 01544 387 382 Tech Dept.
F(01544) 388 888
WVisit Kingspan Insulation's website
 Visit the Kingspan Insulation U Value Calculator
 Pembridge, Leominster, Herefordshire, HR6 9LA

Products by this Company

Make an enquiry