[CCMC 13628-R] CCMC Canadian code compliance evaluation

It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as a prefabricated foundation wall for housing and small buildings in accordance with the conditions and limitations stated in this evaluation, complies with the following code:

National Building Code of Canada 2010

The above opinion is based on the evaluation by the CCMC of technical evidence provided by the evaluation holder, and is bound by the stated conditions and limitations. For the benefit of the user, a summary of the technical information that forms the basis of this evaluation has been included.

Product name

Product description

The product is a prefabricated, insulated precast foundation wall. The foundation walls are formed from 34.4 MPa normal weight concrete containing synthetic fibres. The walls consist of a 44.5-mm-thick exterior face shell that is monolithically cast with 260-mm-wide top and bottom bond beams and 57-mm × 190-mm concrete studs at 610 mm on centre (o.c.). The shell is bonded to 63.5-mm- or 127-mm-thick polystyrene insulation on the inside face. Each stud is wrapped with 25.4-mm-thick expanded polystyrene insulation on 3 exposed sides and faced with a galvanized steel channel for interior finish fastening. Two chase openings are provided in each stud for plumbing and electrical wiring. Wall panels are available in heights of 1 219 mm, 2 489 mm, 2 743 mm and 3 048 mm, and in various lengths.

Manufacturing plants

This evaluation is limited to products produced at the following plants:

Product evaluated by the CCMC Indicates that the product from this manufacturing facility has been evaluated by the CCMC

The CCMC’s compliance opinion is bound by this product being used in accordance with the conditions and limitations set out below.

• The precast foundation walls are for housing and small buildings as directed by Part 9, Housing and Small Buildings, of Division B of the NBC 2015.
• Soil type, drainage characteristics of the soil, frost depth and loadbearing capacity must be determined prior to using the precast foundation walls.
• The precast foundation walls are to be used only in buildings of light-frame construction that are no more than three storeys in building height, with a maximum floor-to-floor height of 3 m, and containing only a single dwelling unit.
• The axial compressive load applied is limited to 109.453 kN/m.
• The design is applicable for seismic zones with S_a(0.2) ≤ 1.2.
• Exterior surfaces of foundation walls below ground level must be dampproofed in accordance with Subsection 9.13.1., General (Dampproofing, Waterproofing and Soil Gas Control), of Division B of the NBC 2015.
• The builder must prepare site conditions in accordance with Superior Walls Builder Guideline Booklet, MAN42-9027.
• Foundation walls and footings must be installed on stable soils with an allowable bearing pressure of 75 kPa or greater.
• Minimum footing widths must comply with Table 4.2.2.1 of this Report or comply with Subsection 9.15.3. of Division B of the NBC 2015.
• The maximum load applied to a brick ledge is restricted to 42.320 kN/m.
• The foundation must be well drained in accordance with Subsections 9.14.3., Drainage Tile and Pipe, or 9.14.4., Granular Drainage Layer, of Division B of the NBC 2015.
• The proposed wall system must be used with floor systems not exceeding loads and spans as directed by the Subsection 9.4.2. of Division B of the NBC 2015.
• Backfill must be placed in such a way as to avoid damage to the wall and the waterproofing protection.
• The backfill material with surcharge must not exceed 1 602 kg/m²/m.
• The on-site concrete basement floor must be poured prior to backfilling.
• The top of the foundation wall must be supported by the first floor prior to backfilling.
• Where hydrostatic pressure exists, waterproofing must be provided in accordance with Subsection 9.13.3. of Division B of the NBC 2015.
• Installation of the product must be completed by a person certified by Superior Walls of America, Ltd.

This evaluation is based on demonstrated conformance with the following criteria:

The evaluation holder has submitted technical documentation for the CCMC’s evaluation. Testing was conducted at laboratories recognized by the CCMC. The corresponding technical evidence for this product is summarized below.

Design requirements

Table 2. Footing design requirements for the product^{Footnote (2)}

Minimum depth and width of 13-mm clean crushed stone footing (mm)Footnote (3)
Construction type (assumed wall loading)		Soil loadbearing capacity (kPa)
		75		100		150		≥ 200
		Depth	Width	Depth	Width	Depth	Width	Depth	Width
Conventional light-frame construction	1 storey (16.05 kN/m)	102	378	102	378	102	378	102	378
	2 storeys (26.29 kN/m)	153	437	102	378	102	378	102	378
	3 storeys (42.34 kN/m)	331Footnote (1)	642	204Footnote (1)	496	102	378	102	378
Masonry veneer over light-frame construction	1 storey (21.91 kN/m)	102	378	102	378	102	378	102	378
	2 storeys (39.41 kN/m)	305Footnote (1)	613	178	466	102	378	102	378
	3 storeys (58.38 kN/m)	534Footnote (1)	877	331Footnote (1)	642	153	437	102	378

Table 3. Lateral support and sill plate anchorage of product to wood-frame floors

Top of foundation wall fastening schedule
Backfill height	Joist height	Sill plate bolting	Brace and block spacing	Number of solid blocks required	Minimum distance of blocking
2.286 m to 2.896 m	≥ 254 mm	One 12.7-mm bolt at 609.6 mm o.c.	1 220 mm o.c. and 305 mm from the interior of each corner	3	1 524 mm
2.286 m to 2.896 m	< 254 mm	One 12.7-mm bolt at 609.6 mm o.c.		2	1 220 mm
0 m to 2.286 m	Any height	One 12.7-mm bolt at 1 219.2 mm o.c.		1	610 mm