[CCMC 12344-R] CCMC Canadian code compliance evaluation

From: National Research Council Canada

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Code compliance opinion

It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as a system to install thermal insulation in accordance with the conditions and limitations stated in this evaluation, complies with the following code:

National Building Code of Canada 2015

Code provision Solution type
9.25.2.2. Insulation MaterialsAcceptable
9.25.2.4. Installation of Loose-Fill InsulationAcceptable

Ontario Building Code

Ruling No. 94-04-04 (12344-R) authorizing the use of this product in Ontario, subject to the terms and conditions contained in the Ruling, was made by the Minister of Municipal Affairs and Housing on 1994-09-28 (revised 2014-10-27) pursuant to s.29 of the Building Code Act, 1992 (see Ruling for terms and conditions). This Ruling is subject to periodic revisions and updates.


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 information

Product name

WallBAR

Product description

The product consists of cellulose fibre insulation that is manufactured in accordance with CAN/ULC-S703-09, “Standard for Cellulose Fibre Insulation (CFI) for Buildings,” and that incorporates approximately 0.5% by weight of powdered adhesive, which is added during the manufacturing process.

 

This product is evaluated for use in typical wood-frame constructions using either 38 mm × 89 mm or 38 mm × 140 mm studs at 400 mm or 600 mm on centre (o.c.). The wall is provided with a polyethylene vapour barrier on the inside and permeable or semi-permeable sheathing material such as waferboard, fibreboard, glass-fibre thermal insulating sheathing or plywood on the outside.

The insulation is injected into the stud cavities by one of two methods:

  1. Through a polypropylene/polyester woven fabric netting (WallNET®) that is stapled to the face of the studs and plates, which would hold the cellulose insulation in its place (see Figure 1). The vapour barrier is installed afterward in this method.
  2. Through the polyethylene vapour barrier, where vertical splines, horizontal strapping or a combination of both is applied to the vapour barrier prior to installing the cellulose insulation (see Figure 2).

The insulation is applied in a dry state at a density of 45 kg/m3 or in a damp state with a moisture content of 15 ± 4% of dry weight at a density of 48 kg/m3 (with a range of ± 10%). To apply moisture, the dry insulation is misted with water during the installation process to cause the fibre to meld at interstitial points, forming a cohesive mat.

The installation for sloped and cathedral ceilings is the same as for walls (see Figure 3), except that there is a ventilation system. The insulation is always dry-blown into cavities, and for areas that are longer than 3 m the insulation must be blown in by stages.

 

detail drawing of “WallBAR” being injected through netting.
Figure 1. “WallBAR” with netting
  1. Polypropylene/polyester woven fabric netting
  2. Staples
  3. Injection hose
  4. Cellulose insulation

 
detail drawing of “WallBAR” being injected through a 0.15mm polyethylene vapour barrier.
Figure 2. “WallBAR” through vapour barrier
  1. Splines (if applicable)
  2. 25 mm × 50 mm strapping (if applicable)
  3. Staples
  4. Injection hose
  5. Cellulose insulation
  6. 0.15 mm polyethylene vapour barrier

 
detail drawing of “WallBAR” being used for sloped and cathedral ceilings.
Figure 3. “WallBAR” for sloped and cathedral ceilings
  1. Continuous ventilated air space
  2. Roof sheathing
  3. Corrugated cardboard or expanded polystyrene air flow vents
  4. 25 mm × 76 mm furring at 400 mm spacing
  5. Netting or vapour barrier retaining membrane
  6. WallNET® (stapled to strapping)
  7. Insulated cavity
  8. Roof rafter or truss
  9. Continuous ventilated air space
  10. Minimum 19 mm × 38 mm strapping

Site-manufactured product

This is a site-manufactured product; it is finished on site following the pouring or pneumatic installation of raw materials produced at the manufacturing plant(s) below.

Manufacturing plants

This evaluation is valid only for products produced at the following plants:

  • Edmonton, Alberta, Canada

  Conditions and limitations

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

  • The installation of the product must be done by an installer who is certified by CCI Manufacturing Inc. and is performed in accordance with the manufacturer’s installation manual, “WallBAR Insulation System,” December 2016. Installers must carry a certificate bearing their signature. The manufacturer-certified installer is responsible for ensuring that the installation work is carried out in a workmanlike manner and in accordance with recommendations provided by CCI Manufacturing Inc.
  • The product can be applied using any commercially available blowing equipment. The application density can vary depending on the type of blowing apparatus used. The installer should be consulted for the correct application density.
  • The vapour barrier must be resealed with a patch according to the manufacturer’s installation manual.
  • The insulation must be kept away from heat-emitting devices, such as recessed light fixtures, by 75 mm; chimneys and propane or natural gas sources by 50 mm; or the distance required by the local authority having jurisdiction (AHJ).
  • The installer must ensure that the moisture content of the lumber is not greater than 19% after the installation in accordance with Article 9.3.2.5., Moisture Content, of Division B of the NBC 2015. The moisture content of the wood frame must be verified and recorded by the installer with a moisture meter after installing the insulation.
  • The system can only be used in cathedral ceilings that incorporate a ventilation system constructed in accordance with Subsection 9.19.1., Venting, of Division B of the NBC 2015.
  • Air flow vents for sloped ceilings can be manufactured with 175 B or C unwaxed corrugated cardboard, or expanded polystyrene with a minimum 8 mm thickness at a density of 16 kg/m3, or by stapling WallNET® netting to the face of 25 mm × 50 mm (or better) strapping fastened to the edge of the rafter/truss. Venting should be fastened to roof rafters, truss chords, truss webs, strapping or sheathing using 12 mm staples. The area over the top plate of the exterior wall must be blocked to prevent insulation from spilling into the soffit area.

  Technical information

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

Evaluation requirements
Criteria number Criteria name
CCMC-TG-072129.03-15ACCMC Technical Guide for Sprayed Mineral/Cellulose Fibre Insulation in Walls with Netting
Material requirements

Thermal insulation

The thermal insulation used is “Weathershield Cellulose Insulation/Global Insulation,” CCMC 09218-L, which is compliant with CAN/ULC-S703-09.

Performance requirements

Moisture content, bulge and density

The results for density and moisture content were determined from material taken from three wall cavities with the same dimensions. The insulation was installed in accordance with the manufacturer’s instructions at densities ranging from 48.5 kg/m3 to 51 kg/m3 for dry applications and from 50 kg/m3 to 52.5 kg/m3 for damp applications. Samples from each cavity were taken, conditioned and then weighed to give the results shown in tables below.

Dry application results of testing bulge and density of the product
Property Unit Requirement Result
Bulge mm Max. 13 mm 5
Density kg/m3 ± 10% Pass

 

Damp application results of testing the bulge, density, and moisture content of the product

Property

Unit

Requirement

Result

Bulge

mm

Max. 13 mm

1

Density

kg/m3

± 10%

Pass

Moisture content

%

15

12.6

 

Results of testing the thermal resistance of the product

Property

Density (kg/m3)

Thermal Resistance at 89 mm (m2·K/W)

Thermal Resistance at 140 mm (m2·K/W)

Dry

45

2.33

3.67

Damp

48

2.33

3.67

Administrative information

Disclaimer

This evaluation is issued by the Canadian Construction Materials Centre (CCMC), a part of the Construction Research Centre at the National Research Council of Canada (NRC). The evaluation must be read in the context of the entire CCMC Registry of Product Assessments and the legislated applicable building code in effect.

The CCMC was established in 1988 on behalf of the applicable regulator (i.e., the provinces and territories) to ensure—through assessment—conformity of alternative and acceptable solutions to regional building codes as determined by the local authority having jurisdiction (AHJ) as part of the issuance of a building permit.

It is the responsibility of the local AHJs, design professionals, and specifiers to confirm that the evaluation is current and has not been withdrawn or superseded by a later issue. Please refer to the website or contact:

Canadian Construction Materials Centre
Construction Research Centre
National Research Council of Canada
1200 Montreal Road
Ottawa, Ontario, K1A 0R6
Telephone: 613-993-6189
Fax: 613-952-0268

The NRC has evaluated the material, product, system or service described herein only for those characteristics stated herein. The information and opinions in this evaluation are directed to those who have the appropriate degree of experience to use and apply its contents (i.e., AHJs, design professionals and specifiers). This evaluation is only valid when the product is installed in strict compliance with the stated conditions and limitations of evaluation and the applicable local building code. In circumstances where no applicable local building permit is issued and that no confirmation of compliance ‘for use in the intended field application’ is undertaken, this evaluation is null and void in all respects. This evaluation is provided without representation, warranty, or guarantee of any kind, expressed, or implied, and the NRC provides no endorsement for any evaluated material, product, system or service described herein. The NRC accepts no responsibility whatsoever arising in any way from any and all use and reliance on the information contained in this evaluation with respect to its compliance to the referenced code(s) and standard(s). The NRC is not undertaking to render professional or other services on behalf of any person or entity nor to perform any duty owed by any person or entity to another person or entity.

Language

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In the case of any discrepancy between the English and French version of this document, the English version shall prevail.

Copyright

© 2021 Her Majesty the Queen in Right of Canada, as represented by the National Research Council of Canada.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the CCMC.

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