- Product Description
- For use as an underlay on roof pitches between 15 degrees and 45 degrees
- Glass reinforced
- Sanded finish
- Commonly used as an underlay beneath felt shingles
Chesterfelt 3B Underlay Bonding Felt 20mtr x 1mtr
A glass reinforced traditional bitumen membrane for use as an underlay.
It is recommended that an underlay such as 3B underlay, is applied on roofs with a pitch between 15 degrees and 45 degrees. Above 45 degrees the underlay is not required unless the building is in an exposed location.
Commonly used as an underlay beneath felt shingles
- Roll weight: 40kg
- Roll Dimensions: 20 mtr x 1 mt