Be inspired by our projects View some of the projects carried out by our clients. If this is the first time you install our products, no worries, we offer you the support to install the Permavoid, trench drains and Romac sewer sleeves and fittings. Filter by category Clamps and couplings Permavoid Rubber edging Sewer baskets Surface drainage Green roof Permavoid Rehabilitation of the Victoriaville cycle path Permavoid Green roof - Mcgill University Pavilion Permavoid