Twice a year (spring and autumn), the following minimum maintenance work should be carried out to ensure that waterproofing remains in excellent condition and eliminate any problems when they first appear.

MINIMUM REGULAR MAINTENANCE FOR FLAT ROOFS - LIQUID-APPLIED WATERPROOFING SYSTEM
 
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MINIMUM REGULAR MAINTENANCE FOR DISTILLED BITUMEN AND POLYMER MEMBRANE WATERPROOFING SYSTEMS
 
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MINIMUM REGULAR MAINTENANCE FOR TPO/FPA SYNTHETIC MEMBRANE WATERPROOFING SYSTEM
 
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