Evaluation Report CCMC 13618-R
REX™ Wrap Fortis

Table of Contents

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MASTERFORMAT:
07 25 10.07
Evaluation issued:
2012-05-16
Re-evaluated:
Never
Revised:
2012-08-17
Re-evaluation due:
2015-05-16
Re-evaluation in progress
No


1. Opinion

It is the opinion of the Canadian Construction Materials Centre (CCMC) that “REX™ Wrap Fortis”, when used as a breather-type sheathing membrane in accordance with the conditions and limitations stated in Section 3 of this Report, complies with the National Building Code 2010:

  • Clause 1.2.1.1.(1)(b), Division A, as an alternative solution that achieves at least the minimum level of performance required by Division B in the areas defined by the objectives and functional statements attributed to the following applicable acceptable solutions:
    • Article 9.27.3.2. Sheathing Membrane Material Standard

This opinion is based on CCMC's evaluation of the technical evidence in Section 4 provided by the Report Holder.

Ruling No. 12-14-284 (13618-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 2012-08-01 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.

2. Description

The product is made up of 2 layers: a non-woven polyester and a polyethylene blown film with a polyester/polyethylene mesh, which are bonded together with a hot melt adhesive resulting in a total thickness of 0.18 to 0.23 mm. The product is available in rolls in various widths and lengths. The rolled material is applied over exterior sheathing material (with the printed side out) so that it forms a continuous envelope around the entire building.

3. Conditions and Limitations

CCMC's compliance opinion in Section 1 is bound by the “REX™ Wrap Fortis” being used in accordance with the conditions and limitations set out below.

  • The product can be used as a breather-type sheathing membrane under commonly used types of exterior cladding to reduce the risk of water infiltration. The main purpose is to create a continuous envelope around the occupied areas of residential or light commercial construction. Such continuity is achieved by overlapping or sealing the product either to itself using CCMC-evaluated contractor sheathing tape, or to other construction materials using an acoustical sealant.
  • The product must be installed with the printed side facing out and must be protected from exposure to ultraviolet (UV) radiation from the sun within 60 days.
  • The product must be installed with a minimum 10 mm air space between the sheathing membrane and the cladding, unless the cladding has been deemed to not require an air space (i.e. deemed by CCMC or deemed by building officials based on past cladding performance).
  • It should be noted that a concealed air space exceeding 25 mm in width must contain proper fire stopping in accordance with Subsection 9.10.16., Fire Blocks, of Division B of the NBC 2010.
  • The product must be installed according to Article 9.27.3.3., Required Sheathing Membrane and Installation, of Division B of the NBC 2010 and the manufacturer's instructions. If they differ, then the installation requirements of the NBC 2010 takes precedence.

4. Technical Evidence

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

4.1 Prescriptive Requirements

4.1.1 Sheet Width (tolerance)

Table 4.1.1
PropertyUnitRequirementResult
Sheet width (tolerance) mm ≥ –6 –2.3 (Pass)

4.2 Performance Requirements

4.2.1 Performance Properties

Table 4.2.1
PropertyUnitRequirementResult
Tensile strength N/mm ≥ 3.5 6.7
Breaking forcemachine direction (MD) N ≥ 180 307
cross direction (XD) ≥ 160 217
Water vapour permeanceFootnote 1(original sample) ng/Pa·s·m2 ≥ 170 402
Water ponding (original)Footnote 2 – No leakage Pass
Tensile strength (% retention of original)after UV exposure % ≥ 90 93.3
after UV exposure and humidity ≥ 80 93.6
after UV exposure, humidity and heat aging ≥ 70 92
Water vapour permeance after UV exposure and heat aging ng/Pa·s·m2 ≥ 170 196
Water ponding after UV exposure, humidity and heat aging – No leakage Pass
Notes to Table 4.2.1:
Footnote 1

ASTM E 96/E 96M-10, “Water Vapor Transmission of Materials” (Desiccant Method).

Return to footnote 1 referrer

Footnote 2

The water ponding test requires that the membrane retain 25.4 mm of water with no passage of water through the membrane for two hours.

Return to footnote 2 referrer

Report Holder

Alpha ProTech
301 South Blanchard Street
Valdosta, GA 31641
U.S.A.

Telephone:
229-242-1931
Fax:
229-242-1947
Email:
sales@alphaprotech.com
Web:
www.alphaprotech.com

Plant(s)

Valdosta, GA, U.S.A.

Disclaimer

This Report is issued by the Canadian Construction Materials Centre, a program of NRC Construction at the National Research Council of Canada. The Report must be read in the context of the entire CCMC Registry of Product Evaluations, including, without limitation, the introduction therein which sets out important information concerning the interpretation and use of CCMC Evaluation Reports.

Readers must confirm that the Report is current and has not been withdrawn or superseded by a later issue. Please refer to the CCMC web site, or contact the Canadian Construction Materials Centre, NRC Construction, National Research Council of Canada, 1200 Montreal Road, Ottawa, Ontario, K1A 0R6. Telephone (613) 993-6189. Fax (613) 952-0268.

NRC has evaluated the material, product, system or service described herein only for those characteristics stated herein. The information and opinions in this Report are directed to those who have the appropriate degree of experience to use and apply its contents. This Report is provided without representation, warranty, or guarantee of any kind, expressed, or implied, and the National Research Council of Canada (NRC) provides no endorsement for any evaluated material, product, system or service described herein. NRC accepts no responsibility whatsoever arising in any way from any and all use and reliance on the information contained in this Report. 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.