TECHNICAL RESEARCH
INDUSTRY EDUCATION
Builder Guide to Site and Foundation Drainage – Best Practices for Part 9 Houses
Description This guide outlines current industry best practices for Part 9 buildings with respect to site drainage, foundation drainage, and below-grade building envelope assemblies. It provides direction for builders, homeowners, and building officials, and emphasizes basic building code requirements and best practices. The guide also addresses conditions which may be faced on more challenging sites (due to local geology, climate, or topography), discusses soil gas control, and provides guidance on maintenance and drainage remediation for existing buildings. Increasing the level of awareness in the industry about the importance of site and foundation drainage is a key goal. The aim is to ultimately reduce the risk of post-construction water ingress into below-grade spaces which is an increasing issue for warranty providers, insurers, and homeowners. Impact This guide educates homeowners and builders on the key strategies and approaches to reducing post-construction water ingress into below-grade spaces for Part 9 buildings in British Columbia.
Guide available online at www.bchousing.org
Status:
Audience: Builders, contractors,
developers, designers, and building officials
48 HOUSING RESEARCH & EDUCATION PROJECT HIGHLIGHTS | JULY 2021
Made with FlippingBook - Share PDF online