IKO Glass APP Universal Underlay – Torch-Applied Roofing Underlay Roll 16m x 1m

The IKO Glass APP Universal Underlay is a professional-grade torch-applied roofing underlay designed for use on flat and low-pitched roofs. Manufactured with a glass-fibre reinforced carrier and coated in high softening point APP modified bitumen, it delivers durable, flexible, and reliable performance beneath roofing membranes.

The underside is finished with a flame-dispersible polyethylene film, enabling safe and controlled torch application. This makes it a trusted choice for roofing contractors and trade users requiring consistent installation and long-lasting protection.

For Safe2Torch installation guidance, please visit our dedicated information hub.

Key features & benefits

APP torch-applied roofing underlay
Glass-fibre reinforced base for added strength
High softening point bitumen for improved heat resistance
Strong, flexible, and durable construction
Suitable for professional roofing applications

Technical information

Base type: 60 g/m² Glass Fibre

Size & weight

Roll size: 16 m x 1 m
Weight: 32 kg

Green Roofing Felt

IKO Top Sheet Roofing Felt | 10m Slate Green

IKO Roofing Felt | 8m Green | 8m x 1m

IKO Roofing Felt | 10m Green

IKO Adesso App Torch-On Cap sheet | 8m x 1m

IKO GLASS FIBRE UNIVERSAL APP TORCH-ON UNDERLAY 16M SAND FINISH