Ventilation shims

NÖVLEK® ventilation shims ensure perfect ventilation of the underside of the boards, and prevent water retention at the contact point between board and joist. Using NÖVLEK® ventilation shims significantly improves durability and stability of the decking, and reduces the risk of the boards cupping.

The NÖVLEK® ventilation shim slips easily between the board and the joist to ensure their 5 mm separation, in order to ensure they are properly ventilated, and to avoid water retention.

BENEFITS

COMPLETE VENTILATION OF THE WOOD
ELIMINATES WATER RETENTION AREAS

COMPLETELY WATERPROOF
NON-POROUS MATERIAL

EXCEPTIONAL COMPRESSION
RESISTANCE

PROTECTION OF THE JOIST
WITH FULL CAPPING

JOIST COVERED AND INVISIBLE

EXTREMELY DURABLE

QUICK AND EASY TO INSTALL
POSITIONING STOPS

STACKABLE
SHIMMING AND LEVELLING

UNCOMPROMISING QUALITY
AND PERFORMANCE

COMPLIANCE DTU 51.4

The NÖVLEK® ventilation shim complies fully with the requirements of the NF DTU 51.4 standard as regards detachment of the board from its support and for shimming.

USE

In order to reduce the risk of water and moisture being trapped between boards and joists, it is strongly recommended that the board be detached from its supporting surface using the NÖVLEK® ventilation shims.

The ventilation shim is simply slipped between the board and the joist.

Cale de départ et de fin

The ventilation shims are supplied with start and end shims. Stainless steel screws are supplied to fix them to joists, so that they do not move when the first board is being adjusted.

Suitable for installation with screws or invisible fasteners.

The shims are suitable both for decking installed with conventional screws from above, or with invisible fasteners.

No matter what direction the joists are laid.

The shims are fitted on both the smaller or larger width of the joist.

Use as a wedge system

The shims stack and interlock to separate the joists from the ground or as a levelling shim.

RANGE

± 19m2*


Width: 65 mm
Thickness: 5 mm

*Estimate based on board thickness of 140 mm and joists centre to centre distance of 45 cm

± 6m2*


Width: 65 mm
Thickness: 5 mm

*Estimate based on board thickness of 140 mm and joists centre to centre distance of 45 cm