Bitumen Sarking Felt

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Maintenance and Cleaning

Types

Maintenance / Cleaning

Cleaning Frequency

Reinforced Bitumen Sheets classified as type 1F to BS 747: 2000 or type 1 to ASTM D 6221-00. Reinforcement of jute hessian.

In some cases the occurrence of membrane failure can be prevented by a planned program of periodic maintenance & inspection.

Inspection:

Annual inspection for underlay defect.

None

Reinforced Bitumen Sheets not manufactured to BS 747: 2000, Type 1F or Type 1 to ASTM D6221-00.