Chesterfelt Chesterplus 3B Underlay Roofing Felt 20mtr

Chesterfelt Chesterplus 3B Underlay Roofing Felt 20mtr

Chesterplus 3B is a traditional pour and roll membrane which is normally installed as an immediate layer over suitable venting bases and finished with suitable Chesterfelt capping sheets. It features a glass fibre core which is saturated and coated in high quality bitumen. 3B is often used as a nailed layer on Plywood decks.

• Suitable as both an underlay and intermediate layer on a built-up flat roof


• Can be used as underlay under shed felts and shingles


• Sand finish