Code Library › Volume 1 › Section 9.20 — Masonry and Insulating Concrete Form
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.20.17.1.Thickness of Flat Insulating Concrete Form Walls

(1) The thickness of concrete in flat insulating concrete form walls not in contact with the ground shall be (a) not less than 140 mm, and (b) constant for the entire height of the wall.
← Previous9.20.16.1. Corrosion Resistance of ConnectorsNext →9.20.17.2. Reinforcement for Flat Insulating Concrete Form

Common questions about this part of the code

How must brick veneer be supported and tied to a house in Ontario?How thick do above-grade masonry walls have to be in Ontario?What are the Ontario Building Code rules for above-grade ICF walls in houses?

Understand this provision in seconds

BUILDAiD Assist explains any article of the building code in plain English — with exact citations, exceptions and related requirements.

Try BUILDAiD Beta

Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.