Chestershield Underslating Felt is suitable for use under tiles or slates, particularly where the felt is not fully supported by boarding.
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
The felt can be repaired if damaged during construction, but routine inspection or maintenance once the roof has been finished is not practicable.
Manufactured in accordance with BS EN 13707:2004+A2:2009 – Flexible sheets for waterproofing. Reinforced bitumen sheets for roof waterproofing.
Effects of Light and Heat
This felt is not for exposure to ultra violet light for lengthy periods, but it does provide weather protection to the building underneath until the tiles or slates are fitted. We do recommend tiles or slates to be fitted as soon as practicably possible. On the finished roof the felt is unaffected by temperatures ranging from summer heat to freezing conditions in winter.
Handling and Storage
The felt should be handled carefully. Though more robust than non-reinforced felts, the rolls should be stored on end on a flat surface and protected from damage. The felt can be damaged by sharp objects or implements and care should be taken once the felt is laid.
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.
UKCA certified & CE Marked to EN 13707:2004+A2:2009.
CE Certificate Number: 0086-CPR-595938.
UKCA Certificate Number: 0086 CPR 753192.
Chestershield is manufactured in accordance with BS EN ISO 9001:2015 – Quality Management Systems (QMS).