Boost ventilation in your roof space with the Timloc Felt Lap Vent. Designed to separate lap joints in roofing felt or membrane, this solution increases airflow and effectively combats condensation in cold roof voids. Plus, it can be easily retrofitted after loft insulation upgrades.

• Discrete profile design
• Easy installation
• 2 spring clips to secure each unit in place
• Injection Moulded recycled Polypropylene
• Manufactured to British Standards: BS EN 9001 and BS EN 14001

Installation

Allowing ventilation between roofing felt/membranes is secondary to eaves and/or ridge ventilation

• Lap vent simply slots between roof felt/membranes laps
• Position the lap vent clips facing down to hang on the edge of the roofing felt/membrane when in position
• Install one lap vent into every alternate rafter space at low level
• If further ventilation is required, install one lap vent into every rafter space at low level and/or into lap joints at higher levels
• The lap vents should be fitted to both sides of the roof space in order to provide cross-flow ventilation
• Installing lap vents alone will not meet m minimum roof ventilation requirements. For guidance and regulations on roof space ventilation please refer to British Standard BS5250

N.B. By specifying the lap vent, you acknowledge that the wind uplift loads on the tiles/slates and driving rain resistance of the membrane can be adversely affected