In the past few years, Wood I-Joists have been used in increasing numbers for building new homes. Quite simply, Prefabricated Wood I-joists are environmentally sensitive products. The design of prefabricated Wood I-joists allows a manufacturer to utilize smaller diameter, faster growing, and generally lower quality trees and still produce a quality product. Secondly, when compared to other building materials, production of wood materials uses less energy and produces less carbon than materials such as steel and concrete.
I-Joists are very strong when used as the manufacturer recommends. The web portion can be drilled to accommodate plumbing pipes and electrical wiring. The trouble begins when some “Moron” with a big hammer beats huge holes in the webbing with no regard for structural integrity or human safety. Large, non symmetrical holes are not allowed and severely compromise the structural integrity of the joists. The joists can sag and even break, compromising the structure of the floor and home. Tile and wood flooring can crack and break. Ceiling and walls can develop cracks. The cost of repair can be huge! Below are photos I took in 1 year old homes.
Luckily I discovered the problems before the one year builder’s warranty was up. The builder will have to pay for the costs of repair. Not my client.
Filed under: Structural Issues
