Chesterflex 125
Traditional Pour and Roll Underlay Membrane
Chesterflex 125 is a high performance underlay membrane used in multi-layer built up roofing systems. It features a polyester core which is saturated and coated in high quality bitumen, and has a light sand finish.
When incorporated in a suitably designed and installed multi-layer system, maintained in accordance with BS 8217:2005 – Reinforced bitumen membranes for roofing, Chesterflex 125 may be expected to last in excess of 10 years.
Key Features & Benefits:
• Long life
• High performance
• Polyester core
• Light sand finish
Accreditations and Certifications
| Product Code | Roll Length | Roll Width | Pallet Quantity |
|---|---|---|---|
| P511 | 16m | 1m | 30 rolls |
Suitability
To complete a full system, Chesterflex 125 is normally installed as an immediate layer over suitable venting bases and is finished with suitable Chesterfelt capsheet membranes. 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.
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.
Handling and Storage
The material should be stored vertically on a firm flat surface and transported stood on end to avoid damage.
Certification
UKCA certified & CE Marked to EN 13707:2004+A2:2009.
CE Certificate Number: 0086-CPR-595938.
UKCA Certificate Number: 0086 CPR 753192.
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.
Quality Assurance
Chesterflex 125 is manufactured in accordance with BS EN ISO 9001:2015 – Quality Management Systems (QMS).
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