The Ontario Building Code | Required Underlay

9.30.2.1. Required Underlay

(1) A panel-type underlay shall be provided under resilient flooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring, parquet flooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring, ceramic tile, felted-synthetic-fibre floor coverings or carpeting laid over lumber subflooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring.

(2) A panel-type underlay shall be provided under resilient flooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring, parquet flooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring, felted-synthetic-fibre floor coverings or carpeting on panel-type subflooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring whose edges are unsupported.

(3) panel-type underlay shall be provided under ceramic tile applied with adhesive.

(4) panel-type underlay shall be provided under resilient flooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring on waferboard or strandboard subflooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring.