Torch-on Felt
Three Layer Torch-On Felt System
Tack Down Glass
Layer 3B
Underlay
Mineral Finish Cap Sheet
ChesterPlus 3B (20m x 1m)
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.
Key Features & Benefits
- 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.
Quality Assurance
Chesterplus 3B is manufactured in accordance with BS EN ISO 9001:2015 – Quality Management Systems (QMS).
LaserGold Underlay (12m x 1m)
Chesterfelt Laser Gold Underlay features a glass fibre core and is designed to be used as part of a torch-applied built-up roofing system. It incorporates SBS modified bitumen and has a light sanded finish on the upper surface. Waterproofing is achieved by saturating and coating both surfaces in bitumen.
When incorporated in a suitably designed and installed multi-layer system, maintained in accordance with BS 8217:2005 – Reinforced bitumen membranes for roofing. Code of practice, Chesterfelt Laser Gold Underlay may be expected to last in excess of 20 years.
Key Features & Benefits
- SBS modified bitumen for added flexibility
- Increased thickness and weight
- Integral part of Laser Gold system
- Life expectancy – In excess of 20 years
Suitability
Chesterfelt Laser Gold Underlay is a torch-applied underlay. When used as part of a multi-layer built up roofing system, it provides long-lasting waterproofing performance and is readily suited to a range of roofs, including those with high insulation values where considerable thermal movement is likely to occur.
Quality Assurance
Chesterfelt Laser Gold Underlay is manufactured in accordance with BS EN ISO 9001:2015 – Quality Management Systems (QMS).
Laser Gold Cap Sheet/Charcoal Mineral (8m x 1m)
Laser Gold is a multi-layered bituminised waterproof system designed for use on various types of flat roofing projects including new build and refurbishments, cold roofs and warm roofs using vapour control layers with insulation. This range of membranes feature a polyester core which is saturated and coated in SBS bitumen and the upper surface is finished with a choice of either light sand or slate mineral.
When incorporated in a suitably designed and installed multi-layer system, maintained in accordance with BS 8217:2005 – Reinforced bitumen membranes for roofing, the Laser Gold system may be expected to last in excess of 20 years.
Key Features & Benefits
- High Performance
- Polyester reinforced
- SBS modified bitumen
- Integral part of 20 year system
Suitability
The Laser Gold sand surfaced membrane may be used both as an under layer and a cap sheet. Where used as a cap sheet, suitable protection from ultraviolet light is required in the form of either premium grade solar reflective paint or suitable walkway type tiles which are suitable for use over bituminous system. Laser Gold polyester membranes can be relied upon to react in unison when combined in multi-layer built up roofing systems. Such combinations are readily applicable to roofs with high insulation values where considerable thermal movement is likely to occur.
Aesthetics
Laser Gold can be finished with a choice of coloured mineral slate, or alternatively with chippings, concrete or wooden slats allowing the building to blend in with its environment. A green roof option also promotes harmony between the building and its surrounding environment and improves the urban landscape.
Mineral Surface Protection
The upper surface of certain Laser Gold membranes is protected using mineral granules, which are sourced from natural quarrying. The colours of the minerals therefore can sometimes vary depending on seam depths and extraction positions within the quarry. However, after the effects of the weathering and ageing, any variations will become less visible.
Quality Assurance
Chesterplus 3B is manufactured in accordance with BS EN ISO 9001:2015 – Quality Management Systems (QMS).
Universal Underlay (16m x 1m)
Universal Underlay is a torch-applied underlay membrane which is designed to be used as part of a torch-applied built-up roofing system. It features a glass fibre core which is saturated and coated in SBS modified bitumen and the upper surface is finished in light sand.
When incorporated in a suitably designed and installed multi-layer system, maintained in accordance with BS 8217:2005 – Reinforced bitumen membranes for roofing, Universal Underlay may be expected to last in excess of 15 years.
Key Features & Benefits
- Waterproofing underlay
- Glass fibre core
- SBS modified bitumen
- Extra flexibility
Suitability
To complete a full system, Universal Underlay is fitted above the venting base sheet, or a suitable preparation layer, prior to the final waterproofing layer. When used as part of a multi-layer built up roofing system, it provides long-lasting waterproofing performance and is readily suited to various types of flat roofing projects, including new build and refurbishments, cold roofs and warm roofs using vapour control layers with insulation.
Quality Assurance
Chesterplus 3B is manufactured in accordance with BS EN ISO 9001:2015 – Quality Management Systems (QMS).
Deflector Plus 5 Cap Sheet (8m x 1m)
Deflector Plus 5 cap sheets are designed for use on various types of flat roofing projects including new build and refurbishments, cold roofs and warm roofs using vapour control layers with insulation. They feature a polyester core which is saturated and coated in SBS modified bitumen and the upper surface is finished with a choice of green or charcoal slate mineral.
When incorporated in a suitably designed and installed multi-layer system, maintained in accordance with BS 8217:2005 – Reinforced bitumen membranes for roofing, Deflector Plus 5 membranes may be expected to last in excess of 15 years.
Key Features & Benefits
- High performance
- Polyester reinforced
- SBS modified bitumen
- Integral part of 15 year system
Suitability
Deflector Plus 5 cap sheets can be relied upon to react in unison when combined in multi-layer built up roofing systems. Such combinations are readily applicable to roofs with high insulation values where considerable thermal movement is likely to occur.
Mineral Surface Protection
The upper surface of Deflector Plus 5 membranes is protected using mineral granules, which are sourced from natural quarrying. The colours of the minerals therefore can sometimes vary depending on seam depths and extraction positions within the quarry. However, after the effects of the weathering and ageing, any variations will become less visible.
Quality Assurance
Chesterfelt Laser Gold Underlay is manufactured in accordance with BS EN ISO 9001:2015 – Quality Management Systems (QMS).
General Information
Handling and Storage
The material should be stored vertically on a firm flat surface, and transported stood on end to avoid damage.
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.
Maintenance and Repair
Routine inspection, cleaning and maintenance of the roof membranes should be based on the recommendation in BS 8217:2005. Should it be damaged either during construction or at later date, then the repairs should be made using the same materials so that the performance of the built-up membranes is retained.
Standards
Manufactured in accordance with BS EN 13707:2004+A2:2009 – Flexible sheets for waterproofing. Reinforced bitumen sheets for roof waterproofing.
Health and Safety
Health and Safety should be observed at all times in accordance with HSE and industry guidance. Specific Risk Assessments and Method Statements should be produced by contractors where necessary to ensure Working at Heights, Fire Safety and Manual Handling rules are compliant with current law and regulations. Health and safety data sheets are available for all materials on request from Chesterfelt.
Certification
UKCA certified & CE Marked to EN 13707:2004+A2:2009.
CE Certificate Number: 0086-CPR-595938.
UKCA Certificate Number: 0086 CPR 753192.
Downloads
Technical Data Sheets can be found here (Link to Downloads section / sub section Torch on Felt)
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Home Building Plastics Ltd for Fascias, Soffits, Cladding, Guttering, Window Boards, Window Panels, Fascia Boards, Soffit Boards, Doors, Door Panels & Building Supplies in Welwyn Garden City, Waltham Abbey, Stevenage, Hatfield, Hertford, St Albans, Cheshunt, Hoddesdon, Harlow, Enfield, Sandy, Biggleswade, Bedford, St Neots and all surrounding areas