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Chesterfelt 3B Bonding Glass Fibre Underlay 20m x 1m Roll
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Delivery:
IN STOCK. Next Day Delivery (if ordered before 13:00)
Key Features:
- Finish: Glass reinforced, Sanded Finish
- Colour: Black
- Roll size: 1m x 20m
- Thickness: 2mm
- Weight: 1.75kg/m2
- Composition: Glass reinforced traditional bitumen membrane
- Application: First Layer, tack down underlay
- Standards: EN 1928:2000 Method A
Description:
Traditionally Manufactured Intermediate Waterproofing Layer.
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.
When incorporated in a suitably designed and installed multi-layer system, maintained in accordance with BS 8217:2005 – Reinforced bitumen membranes for roofing, Chesterplus 3B will provide reliable performance.
• Suitable as both an underlay and intermediate layer on a built-up flat roof
• Can be used as underlay under shed felts and shingles
Suitability
To complete a full system, Chesterplus 3B is fitted above the venting layer and is overlayed with a suitable Chesterfelt capsheet membrane. When used as part of a multi-layer built up roofing system, it provides reliable waterproofing protection and is suitable for use on a wide range of buildings.
Installation Guidelines
This product should be installed in accordance with manufacturer recommendations and all relevant national standards and codes of practice, including BS 8217:2005 – the code of practice for reinforced bitumen membranes for roofing.
Standards
Manufactured in accordance with BS EN 13707:2004+A2:2009 – Flexible sheets for waterproofing. Reinforced bitumen sheets for roof waterproofing.
Certification
UKCA certified & CE Marked to EN 13707:2004+A2:2009.
CE Certificate Number: 0086-CPR-595938.
UKCA Certificate Number: 0086 CPR 753192.
Quality Assurance
Chesterplus 3B is manufactured in accordance with BS EN ISO 9001:2015 – Quality Management Systems (QMS).
Downloads & Data Sheets:

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Delivery:
IN STOCK. Next Day Delivery (if ordered before 13:00)
Key Features:
- Finish: Glass reinforced, Sanded Finish
- Colour: Black
- Roll size: 1m x 20m
- Thickness: 2mm
- Weight: 1.75kg/m2
- Composition: Glass reinforced traditional bitumen membrane
- Application: First Layer, tack down underlay
- Standards: EN 1928:2000 Method A
Description:
Traditionally Manufactured Intermediate Waterproofing Layer.
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.
When incorporated in a suitably designed and installed multi-layer system, maintained in accordance with BS 8217:2005 – Reinforced bitumen membranes for roofing, Chesterplus 3B will provide reliable performance.
• Suitable as both an underlay and intermediate layer on a built-up flat roof
• Can be used as underlay under shed felts and shingles
Suitability
To complete a full system, Chesterplus 3B is fitted above the venting layer and is overlayed with a suitable Chesterfelt capsheet membrane. When used as part of a multi-layer built up roofing system, it provides reliable waterproofing protection and is suitable for use on a wide range of buildings.
Installation Guidelines
This product should be installed in accordance with manufacturer recommendations and all relevant national standards and codes of practice, including BS 8217:2005 – the code of practice for reinforced bitumen membranes for roofing.
Standards
Manufactured in accordance with BS EN 13707:2004+A2:2009 – Flexible sheets for waterproofing. Reinforced bitumen sheets for roof waterproofing.
Certification
UKCA certified & CE Marked to EN 13707:2004+A2:2009.
CE Certificate Number: 0086-CPR-595938.
UKCA Certificate Number: 0086 CPR 753192.
Quality Assurance
Chesterplus 3B is manufactured in accordance with BS EN ISO 9001:2015 – Quality Management Systems (QMS).
Downloads & Data Sheets:

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