CodeChronicle

OBC 2006 Division B

9.14.4.

Version 0 — in force 31 December 2006

In force
Verified · covered Verified against the 2006-12-31–2007-04-01 consolidation, whose range covers the query date. How to read this

Provenance

OBC 1997 · continues from 9.14.4. — Pro

Base · O. Reg. 350/06 · ext← current

Original — base regulation

OBC 2012 · continues as 9.14.4. — Pro

9.14.4. — Granular Drainage Layer

Content not available for this version.

9.14.4.1. — Type of Granular Material

(1) Granular material used to drain the bottom of a foundation shall consist of a continuous layer of crushed stone or other coarse clean granular material containing,

(a) not more than 10% of material that will pass a 4 mm sieve, and

(b) no pyritic material in a concentration that would adversely affect its stability or the performance of assemblies separating dissimilar environments.

Text · e-Laws consolidated snapshot

9.14.4.2. — Installation

(1) Granular material described in Article 9.14.4.1. shall be laid on undisturbed or compacted soil to a minimum depth of not less than 125 mm beneath the building and extend not less than 300 mm beyond the outside edge of the footings.

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9.14.4.3. — Grading

(1) The bottom of an excavation drained by a granular layer shall be graded so that the entire area described in Article 9.14.4.2. is drained to a sump conforming to Article 9.14.5.2.

Text · e-Laws consolidated snapshot

9.14.4.4. — Wet Site Conditions

(1) Where because of wet site conditions soil becomes mixed with the granular drainage material, sufficient additional granular material shall be provided so that the top 125 mm is kept free of soil.

Text · e-Laws consolidated snapshot