[CCMC 06292-R] CCMC Canadian code compliance evaluation
From: National Research Council Canada
Hambro Floor-Ceiling Assembly
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It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as a fire- and sound-rated floor-ceiling assembly in accordance with the conditions and limitations stated in this evaluation, complies with the following code:
National Building Code of Canada 2015
|ID||Code provision||Solution type|
|03-01-07-00-00-0-00||3.1.7. Fire-Resistance Ratings||Acceptable|
|03-01-08-00-00-0-00||3.1.8. Fire Separations and Closures||Acceptable|
|03-01-09-00-00-0-00||3.1.9. Penetrations in Fire Separations and Fire-Rated Assemblies||Acceptable|
|03-03-04-06-00-0-00||18.104.22.168. Sound Transmission||Acceptable|
|05-08-01-01-00-0-00||22.214.171.124. Required Protection||Acceptable|
|05-08-01-02-00-0-00||126.96.36.199. Determination of Sound Transmission Ratings||Acceptable|
|05-08-01-03-00-0-00||188.8.131.52. Compliance with Required Ratings||Acceptable|
|09-10-08-00-00-0-00||9.10.8. Fire Resistance and Combustibility in Relation to Occupancy,Height and Supported Elements||Acceptable|
|09-11-01-01-00-0-00||184.108.40.206. Required Protection||Acceptable|
The above opinion(s) is/are 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.
Hambro Floor-Ceiling Assembly
Hambro Floor-Ceiling Assembly is a floor-ceiling assembly composed of a concrete slab, steel joists, furring channels and gypsum boards. The concrete slab is, at minimum, 65 mm thick and minimally reinforced with an embedded 4.2 mm diameter wire mesh that is 150 mm × 150 mm. The minimum strength of the concrete at 28 days must be at least 20 MPa.
The steel joists are Hambro D500 open-web with temporary plywood deck (Figure 1 and Figure 3), Hambro D510 solid web (Figure 2), and Hambro MD2000 steel deck (Figure 4) with composite joists spaced typically at 1 260 mm on centre (o.c.). They may be spaced up to 1 830 mm (refer to the G524 fire test). The top chord is embedded 38 mm into the concrete slab. Galvanized steel furring channels that are 0.45 mm thick, 67 mm wide and 22 mm deep are secured to each joist with 1.2 mm diameter galvanized steel wire. The furring channels are installed perpendicular to the joists at 400 mm or 600 mm o.c., depending on the drywall (refer to the G524 fire test). Type C gypsum boards that are 12.7 mm or 15.9 mm thick are then fastened to the furring channels.
As an alternative to metal furring and gypsum wallboard, some designs use suspended ceilings with steel framing members and various types of lay-in panels as detailed in ULC publications and cUL listings.
For complete drawings, refer to the Underwriters’ Laboratories of Canada Floor and Ceiling Construction Design Nos. I506, I518 and I800 published in their “List of Equipment and Materials,” Volume II. For cUL Design No. G524, refer to the UL “Fire Resistance Directory” for Canada. For more information see Figure 1 and Figure 2.
This evaluation is limited to products produced at the following plants:
|Product name||Manufacturing plants|
|Calgary, AB, CA||St-Gédéon, QC, CA|
|Hambro Floor-Ceiling Assembly||Product evaluated by the CCMC||Product evaluated by the CCMC|
Product evaluated by the CCMC Indicates that the product from this manufacturing facility has been evaluated by the CCMC
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 product is permitted for use in construction where a fire-resistance rating is required for a floor assembly. Such a rating must be determined in conformance with CAN/ULC-S101, “Fire Endurance Tests of Building Construction and Materials.”
- The product is also permitted for use where a sound transmission class rating is required for floor construction. The sound transmission class rating provided in this report is for information only. The ASTC (apparent sound transmission class), STC (sound transmission class), FSTC (field sound transmission class) and IIC (impact insulation class) or AIIC (apparent impact insulation class) published in the report indicate that a proposed system may be able to achieve these results. To obtain the sound transmission class rating between units in buildings it must be determined in accordance with ASTM E 336-11, “Measurement of Airborne Sound Attenuation between Rooms in Buildings” or calculation carried out in accordance with Article 220.127.116.11., Detailed Method for Calculating ASTC, or Article 18.104.22.168., Simplified Method for Calculating ASTC, of Division B of the NBC 2015.
- The product must be installed by qualified installers.
- The product must be supported by a structure designed by a professional engineer skilled in structural design and licensed to practise under the appropriate provincial or territorial legislation.
- The product may be used in combustible or noncombustible construction where a fire-resistance rating is required only if the system has a ULC or cUL listing.
- Openings in the product must comply with limitations allowed by the G524 fire test.
- The product drawings and documents, which are related to span and spacing, must bear the authorized professional seal and signature of an engineer skilled in structural design and licensed to practise under the appropriate provincial or territorial legislation. The cUL G524, as published in the UL “Fire Resistance Directory” of Canada, must also bear the same authorized professional seal and signature of an engineer.
- The flanking wall assemblies shall be constructed in accordance with Article 22.214.171.124., Adjoining Constructions, of Division B of the NBC 2015. Table A-126.96.36.199.-C presents compliance options for the construction of vertically adjoining spaces.
This evaluation is based on demonstrated conformance with the following criteria:
|Criteria number||Criteria name|
|CCMC-TG-053113.01-15||CCMC Technical Guide for Fire and Sound Systems|
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.
Fire endurance testing was conducted by the Underwriters’ Laboratories of Canada (ULC). Sound transmission class ratings were determined by laboratories recognized by the CCMC and from results obtained in the field.
ULC fire rated assembly designs
|Design I506||Concrete slab thickness (mm)||Fire-resistance ratingTable footnote (1) (h)||Field sound transmission class (FSTC)|
|H Series joistTable footnote (2)||65||2||53|
|LH Series joistsTable footnote (2)||75||2||53|
|Design I518||Concrete slab thickness (mm)||Fire-resistance ratingTable footnote (1) (h)||Field sound transmission class (FSTC)|
|H Series joistTable footnote (2)||65||1.5||53|
|LH Series joistsTable footnote (2)||75||1.5||53|
|Restrained assembly ratingTable footnote (1) (h)||Unrestrained assembly ratingTable footnote (1) (h)||Thickness of sprayed fibre on D510 joist (mm)||Thickness of sprayed fibre on D500 joist (mm)||Concrete slab thickness (mm)||Field sound transmission class (FSTC)|
|Design||Concrete slab thickness (mm)||Height of truss (mm)||Fire-resistance ratingTable footnote (1) (mm)||Field sound transmission class|
|D500 and MD2000 truss||65||150||1 and 1.5||53|
|70||200||1.5 and 2||53|
|D510 truss||80||200||1 and 1.5||53|
Sound transmission class ratings
MD2000 and D500
|Design||Concrete slab thickness (mm)||Height of truss (mm) and deck||Furring channel||Gypsum board||Field sound transmission class (FSTC)|
|MD2000 truss||101.6 reinforced||203.2 with steel deck||406 mm on centre||12.7 mm Type C||52|
|D500 truss||63.5 reinforced||203.2 with plywood deck||406 mm on centre, isolated with 12.7 mm felt pad||12.7 mm Type C||54|
|101.6 reinforced||203.2 with plywood and 165 mm fibreglass insulation||406 mm on centre||2 layers 12.7 mm Type C||63|
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Use of Canadian Construction Materials Centre (CCMC) assessments
This assessment must be read in the context of the entire CCMC Registry of Product Assessments, any applicable building code or by-law requirements, and/or any other regulatory requirements (for example, the Canada Consumer Product Safety Act, the Canadian Environmental Protection Act, etc.).
It is the responsibility of the user to confirm that the assessment they are using is current and has not been withdrawn or superseded by a later version on the CCMC Registry of Product Assessments.
The National Research Council of Canada (NRC) has evaluated only the characteristics of the specific product described 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 (such as authorities having jurisdiction, design professionals and specifiers). This evaluation is valid when the product is used as part of permitted construction, respecting all conditions and limitations stated in the evaluation, and in accordance with applicable building codes and by-laws.
This evaluation is provided without representation, warranty or guarantee of any kind, expressed or implied, and the NRC provides no endorsement for any evaluated product. The NRC accepts no responsibility whatsoever arising in any way from any and all use of or reliance on the information contained herein or the use of any evaluated product. 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.
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© His Majesty the King in Right of Canada, as represented by the National Research Council of Canada, 2023
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