Crack sealing is performed to prevent water from infiltrating our street surfaces through cracks in the road surface. Over time the water will disturb or break down the road base causing additional cracking, alligatoring (extreme cracking) and eventually base failure (sinking and crumbling) of the road surface. If the streets are allowed to alligator or even worse, base failure, this would require a base repair or reconstruction of the street to bring it back to a fair or better state.
Proper crack sealing is without question the most cost effective and important part of our preventative maintenance program. Cracks are prepared for sealing using highly compressed air to blow out and clean the cracks; a torch is also used to burn vegetation that may be growing in these crevices. Cracks are then sealed with a very hot Asphaltic rubber that adheres to the walls and fills the cracks.