Designing Single family home in Hudson Valley New York. In wall plumbing can cause lots of issues for Thermal, Vapor, Water and Air Barriers.
Was thinking of using ABS for Waste and PVC for Vent would that be allowed?
The PVC to ABS would use “Oatley ABS To PVC Transition Green Cement”.
Plan is to have a small conditioned crawl space under bath, laundry, portion of kitchen, laundry and mechanical room. All plumbing drains and supplies would be run in the crawl space so would be accessible in future for service. The vents would be U-turn vents and connect in crawl space. Having the ABS be vent and PVC be waste would eliminate confusion.