b'BELOW-GRADE WATERPROOFINGinstallation. Sheet applied membrane and the associatedaround the pipe will get compressed and deformedgussets would not be appropriate for this application. while applying the pressure, thus compromising the2.Pre-insulated hot and cold non-metallic water pipes withwaterproofing continuity.a waterproof, corrugated HDPE jacket: Within one footAn alternative solution involves applying a liquid-applied from the exterior face of the concrete foundation wall, thewaterproofing onto the jacket and the wall waterproofing corrugated HDPE jacket needs to be replaced with a roundmembrane. The intent is shown in Photos 12 & 13. In this conduit to provide a suitable substrate to extend the water- case, the adequate bond between the liquid-applied membrane proofing membrane onto. Some pre-insulated pipe manu- and HDPE jacket, as well as the associated chemical compat-facturers can accommodate such a detail as part of theiribility, must be verified before proceeding. Another alternativeTORO ALUMINUMaccessories. The round conduit and the corrugated jacketand promising solution for this specific application involves aMagazine Adsthen need to be clamped, sealed and waterproofed properlyproprietary round, flange-type waterproof boot that is installed at the one-foot mark. The latter should involve the advicearound the jacket (Photo 14). The boot is sealed onto the jacket of the pipe manufacturer. Such sealing demands specialwith several lines of compatible sealant. The below-grade water-attention as water that bypasses the conduit can enter theproofing membrane will then be extended onto the flange. For building, and it can also compromise the pipe insulation. new construction projects, the boot would be in one piece. 3.Main HWS and HWR pre-insulated metal pipes with aWhen dealing with existing conditions, the boot comes in two half-circle pieces, as shown in Photo 14, with the seams sealed thin-walled HDPE jacket: Mechanical engineers tend towith several lines of compatible sealant. specify a product called Link-Seal for around these pipes, which is a modular, elastomer mechanical sealing device.Unlike the first pipe scenario where the below-grade water-The Link-Seal is placed inside the gap between the concreteproofing continuity will be achieved onto the actual pipe, in wall and HDPE jacket, and then water sealing is intendedscenarios 2 and 3, the waterproofing continuity is achieved to be achieved by exerting mechanical pressure against theonto the jacket/liner of the pre-insulated pipe, and not the pipe THE LEADER IN pipe jacket and the concrete. When it comes to applica- itself. This means that any incidental water that bypasses the tions such as pre-insulated pipes, this water sealing methodjacket can enter the building by tracking along the insulation WINDOW WALLSTHE LEADER would not be recommended as the insulation and the jacketbetween the jacket and the pipe. As such, it is critical that the AND DOORS IN WINDOW WALLS AND FOR CONDOS, OFFICES AND HOTELSDOORSACROSS NORTH AMERICA.CURTAIN WALL. WINDOW WALL. RAILINGS. (866) 3207307TOROGROUPOFCOMPANIES.COM FOR CONDOS, OFFICES AND HOTELS ACROSS NORTH AMERICA.CURTAIN WALL.WINDOW WALL.RAILINGS. (866) 3207307TOROGROUPOFCOMPANIES.COMPHOTOS 12, 13, & 14 (FROM BORNIT WEBSITE).THE LEADER IN WINDOW WALLS AND DOORSFOR CONDOS, OFFICES AND HOTELS ACROSS NORTH AMERICA.CURTAIN WALL. WINDOW WALL. RAILINGS.(866) 3207307TOROGROUPOFCOMPANIES.COM18 BCBEC ELEMENTSA BCBEC PUBLICATIONMagazine AdTORO 54356 Copyright 2022 Joey Ai. All rights reserved.'