Reinforced waterproofing system for porous decks

DETAILED DESCRIPTION The present invention is premised on the realization that a reinforced rubberized asphalt built-up waterproofing system can be formed, even on a lightweight structural concrete surface, by applying as the first layer a preformed rubberized asphalt sheet.
The preformed sheet has a lower layer of tacky rubberized asphalt and an upper layer is the reinforced mesh embedded in the first layer.
This is applied to the surface such as a roof and pressed against the surface causing the rubberized asphalt layer to adhere to the surface at ambient temperature.
Subsequently, a protective layer such as a molten layer of rubberized asphalt is applied over the preformed sheet.
When this molten rubberized asphalt layer is applied to the preformed layer already adhered to the surface, it does not develop pockets or bubbles, nor does it develop pin holes in either the outer rubberized asphalt layer or the inner layer.
It remains tacky and flexible.
Further, this requires significantly less labor than prior rubberized asphalt roof surfaces.
Thus, the present invention provides a method to coat even lightweight structural concrete surfaces with a built-up reinforced rubberized asphalt surface.
The objects and advantages of the present invention will be further appreciated in light of the following detailed descriptions and drawing in which: