All homes generate moisture from everyday activities like cooking and showering. When this moisture condenses in a cold loft it can eventually lead to costly problems like rotten roof timber.

Condensation in the loft is usually caused by inadequate ventilation. This can often be remedied quickly and easily if your loft has traditional lapped membrane or roofing felt behind the tiles.

The Felt Lap Vents are fitted inside the loft by simply clipping individual vents onto the edges of the felt or membrane close to the eaves.

Each felt lap vent creates an air gap delivering up to 3000mm2/m of ventilating airflow. When combined with existing roof space ventilation, fitting evenly spaced lap vents on both sides of the loft will fix most loft condensation problems.