Novel green roofing membrane system made with recycled leftover paint

Leftover paint is considered as a hazardous material and is associated with costly disposal around the world. In this study, a novel green roofing membrane system having a primered composite overlay incorporating leftover paint was developed and experimentally evaluated. Its performance was compared with that of more conventional low-slope roofing systems. The experimental program included static puncture, dynamic impact, peeling, pull-off and exposure to fire testing. Two series of specimens were tested: unaged specimens cured at normal conditions and accelerated-aged specimens exposed to cold and arid conditions for different time periods. Results indicated that the primered composite overlay significantly improved the static puncture resistance, dynamic impact performance and fire resistance. The peeling and pull-off test results mainly depended on the method of installation for the single-ply membranes. The fully adhered system showed best performance. The exposure condition did not induce significant changes in measured properties by the end of the investigated period. It is demonstrated that beneficiating leftover paint in producing roofing systems can consume large volumes of this hazardous waste, yielding significant economic and environmental benefits and enhanced roofing membranes.

Novel green roofing membrane system made with recycled leftover paint Journal Articles