[CCMC 14126-R] CCMC Canadian code compliance evaluation

• HP+^™ XR Series: WALLTITE^® CM01 polyurethane foam sprayed between wood studs (installed at 406 mm (16 in.) o.c. and 609 mm (24 in.) o.c.) and over metal or wood girts supporting Neopor^® Graphite Polystyrene (GPS) board. Figure 1 and Figure 2 in Air barrier system details show the assembly with horizontal metal girts and Figure 3 and Figure 4 show the assembly with horizontal wood girts.
• HP+^™ XR-S Series: the same wall assembly as HP+^™ XR Series with the exception of a 12.5-mm-thick (½ in.) plywood or OSB sheathing installed between the wood studs, the horizontal girts and the Neopor^® Graphite Polystyrene (GPS) board. The “S” designation stands for seismic, however, the seismic performance evaluation is beyond the scope of this evaluation.

Principle material in the plane of airtightness

• WALLTITE^® CM01 (CCMC 14100-L) spray-applied, polyurethane foam insulation by BASF Canada Inc.
  When installed as part of the designated ABS, WALLTITE^® CM01 spray-applied polyurethane foam serves a double function in the wall assembly:
  1. as the principal plane of airtightness of the designated ABS; and
  2. as a thermal insulation.
  The use of the spray-applied polyurethane foam as a thermal insulation is evaluated in CCMC 14100-L. The foam insulation consists of two components:
  • Elastospray^® 8000A isocyanate; and
  • a polyurethane resin identified as WALLTITE^® CM01.
  The two components are mixed on-site by an installer approved by BASF Canada Inc. to install the insulation product. The resulting product is a spray-applied polyurethane with an assigned long-term thermal resistance value of 1.82 (m²·K)/W per 50 mm. The colour of the finished product is purple. When the foam insulation serves as the principal component in the BASF Canada Inc. proprietary ABS, it must be installed at a minimum thickness and density, which are specified in the Air barrier system section in the Conditions and limitations section of this evaluation.

Accessories for continuity of the ABS

• transition membrane at frame rough openings (see Figures 5, 6, 7 and 8 in Air barrier system details)^{Footnote (1)}:
  • 3M^™ Air and Vapour Barrier 3015, a proprietary elastomeric flashing with acrylic adhesive manufactured by 3M Canada Company; or
  • HP+^™ Flash, a one-component elastomeric liquid-flashing membrane manufactured by BASF used in conjunction with Tyvek^® HomeWrap^™ breather type sheathing membrane (CCMC 12808-R).
• sealant: (see Figures 1, 2, 3 and 4 in Air barrier system details):
  • MasterSeal^® NP1^™, a one-component elastomeric polyurethane sealant manufactured by BASF, for use on the exterior side of the wood frame along the horizontal joint between:
    • the sill plate and rim board;
    • the rim board and subfloor;
    • the subfloor and bottom plate;
    • the bottom plate and 38 × 140 studs; and
    • the top plates.
    MasterSeal^® NP1^™ is also for use along the vertical joint between:
    • the studs;
    • the header lumbers; and
    • at corners of the window/door rough frame opening.
    The use of MasterSeal^® NP1^™ on the interior side is along the joint between the frame of the windows and doors, and the rough frame opening.

Component for wind load resistance^{Footnote (2)}

• in the HP+^™ XR Series: Neopor^® Graphite Polystyrene (GPS)^{Footnote (3)}, a moulded expanded polystyrene board with bead technology manufactured by BASF used as a backing for the installation of WALLTITE^® CM01.
• in the HP+^™ XR-S Series: 12.5-mm-thick (½ in.) plywood or OSB sheathing used as a backing for the installation of WALLTITE^® CM01.eturn to footnotreferrerReturn to footnote

The durability assessment of WALLTITE^® CM01 (the principal material of the ABS) has demonstrated sufficiently low air permeance at a thickness of 25.4 mm and a minimum field density of 39 kg/m³ (also called in-place density), which meets the intent of Subsection 9.25.3., Air Barrier Systems, of Division B of the NBC 2010 and NBC 2015 for buildings with an indoor relative humidity (RH) of 35% or less. For buildings with a higher RH (e.g., swimming pools and museums), additional assessment is required in accordance with Part 5, Environmental Separation, of Division B of the NBC 2010 and NBC 2015.

The evaluation of HP+^™ XR and XR-S Series – Air Barrier System is limited to wood-frame construction meeting the requirements of Part 9, Housing and Small Buildings, of Division B of the NBC 2010 and NBC 2015. The air leakage rate of the tested wall assemblies, following structural aging, met the rating A1 (less than 0.05 L/(s·m²) at a pressure difference of 75 Pa) when tested in accordance with CAN/ULC-S742-11, “Air Barrier Assemblies – Specification.” The wall assemblies have demonstrated sufficient strength to resist wind loads for use in Part 9 buildings in geographical locations where the wind pressure is Q_1/50 ≤ 1 000 Pa for a maximum building height of 12 m. The Q_1/50 corresponds to the 1-in-50-year wind pressure return period published in Appendix C of Division B of the NBC 2010 and NBC 2015. For applicability of the ABS rating and durability of the components, in wood frame construction beyond Part 9, the stamp of an engineer is required for acceptance by the authorities having jurisdiction (AHJs). See Additional data in the Technical information section of this evaluation.

For ensuring air leakage control and strength in the field, the ABS must be installed in locations where the wind pressure is equal to or lower than the aforementioned wind pressure limits and installed in the field by BASF-trained installers/contractors following the BASF Canada Inc.-specified ABS installation manual entitled HP+^™ Wall System – Technical Installation Manual (revision date 8 May 2019). Additional construction details and drawings provided in the HP+^™ Wall System – 3D Field Assembly Guide (version 2019-05-01) for the HP+^™ XR Series and HP+^™ XR-S Series must also be followed. Additional field installation requirements are described below in the sections "Air barrier system - field quality assurance" and "Thermal insulation - field quality assurance". A copy of the BASF Canada Inc. installation instructions must be available on the job site at all times during the installation for review by building officials. All installers of WALLTITE^® CM01 must present their Caliber certification card upon request by the building official.

See Air barrier system details of this evaluation for examples of the tested wall assemblies.

The product must be identified with the manufacturer’s name and logo, and the phrase “CCMC 14126-R.”

When HP+^™ XR and XR-S Series – Air Barrier System is applied as the designated ABS, BASF Canada Inc. requires that the installer be BASF Canada Inc.-trained and that Caliber conducts the necessary follow-up inspections to ensure that the certified contractors are performing the necessary field quality control (for example, quality check on the application of the transition membrane, sealant and spray foam as per CAN/ULC-S705.2-05, “Thermal Insulation – Spray Applied Rigid Polyurethane Foam, Medium Density – Application”).

Caliber conducts periodic audits to ensure:

• the approved accessories are being used;
• proper installation of the transition membrane by conducting periodic tension testing as part of the BASF Canada Inc.-specified quality control;
• proper continuity details and substrate conformance as part of the quality control procedure for the product;
• proper application of the WALLTITE^® CM01 spray-applied polyurethane foam insulation; and
• the daily work records are maintained for the ABS installation.

All results must be recorded on the Caliber daily worksheet for the HP+™ XR and XR-S Series – Air Barrier System.

When WALLTITE^® CM01 is applied as a spray-foam insulation, the material must be manufactured on site by qualified installers trained by BASF Canada Inc. with field inspections carried out by Caliber. Caliber certifies BASF Canada Inc.’s training program and provides follow-up inspections to ensure installations are in accordance with CAN/ULC-S705.2.

The product must be installed in accordance with the manufacturer’s installation manual. A copy of this manual must be available on the job site at all times during the installation. All installers must present their Caliber certification card and daily work record upon request by the building officials.

Note: the BASF Canada Inc. field quality assurance program calls for periodic audits of the installers. These audits usually consist of random inspections. Some larger projects are subject to mandatory inspections. Building officials may contact BASF Canada Inc. (866-474-3538) and request an inspection for a specific job site if they deem it necessary. In cases where the installation is deemed non-conforming by Caliber/BASF Canada Inc. and the non-conformance is not remedied by the installer, Caliber/BASF Canada Inc. will inform the owner/architect/building official of the non-conforming installation.

See CCMC 14100-L for additional limitations on the installation of the WALLTITE^® CM01 spray-foam product.

Elastospray^® 8000A isocyanate and the polyurethane resin WALLTITE^® CM01 must have their containers (i.e., drums) identified by the phrase “CCMC 14126-R” and “CCMC 14100-L,” respectively.

The results of the air leakage tests conducted on three representative specimens (wall assemblies) are summarized below in the table "Results of testing HP+™ XR and XR-S Series – Air Barrier System." The original full-scale wall assemblies testing was carried out with WALLTITE^® v.3 as previously evaluated by CCMC. The performance resulting from these tests has been deemed applicable to WALLTITE^® CM01 – Air Barrier System.  

The durability test results of the ABS components are summarized below in the table "Results of durability testing of components in the HP+™ XR and XR-S Series – Air Barrier System." WALLTITE^® CM01 met the CCMC air permeance durability requirements and is deemed to be an adequate foam for the air barrier system application.

The performance of the product has been tested in accordance with the CCMC technical guide for qualification for use as an ABS.

To qualify, a confirming ABS must:

• have an acceptable low air leakage rate;
• be continuous;
• be durable;
• have sufficient strength to resist the anticipated air pressure load; and
• be buildable in the field.

Air leakage rate

Durability of air barrier system components

Data in this Section does not part from the CCMC's opinion in the Code compliance opinion section previously stated in this evaluation.

Air leakage

The following test data are provided for information purposes only as the CCMC opinion of the product compliance with NBC 2010 and NBC 2015 stated in this evaluation is limited to a maximum building height of 12 m for Part 9 buildings. For the applicability of the ABS rating and durability of the components, in wood frame construction beyond Part 9, the stamp of an engineer is required for acceptance by the AHJs.

The third-party testing laboratory that conducted the air leakage tests in compliance with CAN/ULC-S742 also reported the following sustained hourly wind pressure loads and corresponding building heights beyond 12 m:

1. Q_1/50 sustained hourly wind pressure load 0.450 kPa (450 Pa) and building height of 60 m;
2. Q_1/50 sustained hourly wind pressure load 0.550 kPa (550 Pa) and building height of 20 m;
3. Q_1/50 sustained hourly wind pressure load 0.650 kPa (650 Pa) and building height of 20 m;
4. Q_1/50 sustained hourly wind pressure load 0.750 kPa (750 Pa) and building height of 20 m; and
5. Q_1/50 sustained hourly wind pressure load 0.850 kPa (850 Pa) and building height of 20 m.

The tested wall specimens did not lose their integrity during the wind pressure loading.

Specimens tested for qualifying system detail

The first four figures below outline the original full-scale wall specimens tested with WALLTITE^® v.3, which represent typical construction details to be reproduced in the field as part of the installation of BASF Canada Inc.’s proprietary HP+™ XR and XR-S Series – Air Barrier System. The last fivefigures below depict the continuity details of the ABS at penetrations. The representative specimens tested also contained defects (e.g., Neopor^® Graphite Polystyrene (GPS) defects, etc.) to verify the sensitivity of the ABS to these possible field defects and allow for tolerances. See the HP+™ Wall System – Technical Installation Manual (revision date 8 May 2019) and HP+™ Wall System – 3D Field Assembly Guide (version 2019-05-01) for complete details.

HP+™ XR Series wall system, (metal girt) opaque wall

HP+™ XR Series wall system, (metal girt) window and floor

Since a concrete base is built as part of the tested wall specimens to represent the foundation wall, a sill plate gasket was installed at the joint between the concrete base and wood sill plate to comply with Sentence 9.23.7.2.(2), Levelling and Sealing of Sill Plates, of Division B of the NBC 2010 and NBC 2015.

Masonry veneer anchors and service penetrations (various types of pipe) were introduced in the tested wall specimen HP+™ XR Series (metal girt).

HP+™ XR Series wall system, (wood girt) opaque wall

HP+™ XR Series wall system, (wood girt) window and floor

Masonry veneer anchors and service penetrations (various types of pipe) were introduced in the tested wall specimen HP+™ XR Series (wood girt).

HP+™ XR Series wall system, wall/window details MasterSeal Sealant (caulking) and self-adhesive membrane

HP+™ XR Series wall system, wall/window details HP+™ Flash with Tyvek^® HomeWrap™ breather type sheathing membrane

The transition membrane HP+™ Flash was not part of the original full-scale testing, but has demonstrated sufficient adhesion strength and durability performance to be used with HP+™ XR and XR-S Series – Air Barrier System. Other polyethylene-based membrane evaluated by the CCMC can be used in conjunction with the HP+™ Flash.

HP+™ E, X and XR Series wall system, penetration details