The Debovent Perfoval Perforated Roof Underlay for Torch on Felt is a 16m x 1m perforated membrane designed to provide ventilation beneath torch on felt roofing systems. It helps reduce the risk of trapped moisture and blistering in flat roof constructions.

Key Features

• Perforated roof underlay for torch on felt
• 16m long x 1m wide roll
• Helps ventilate beneath roofing felt
• Suitable for flat roof build-ups

Uses

• Providing a venting layer under torch on felt roofs
• Reducing moisture build-up in flat roofing systems
• Helping limit blistering beneath felt coverings