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BCC Ruling No. 15-20-1409

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Ruling No.: 15-20-1409
Application No.: B 2015-16

 

BUILDING CODE COMMISSION

IN THE MATTER OF Subsection 24(1) of the Building Code Act, S.O. 1992, c. 23, as amended.

AND IN THE MATTER OF Sentence 1.3.1.2.(1) of Division A, of the Building Code of Regulation 350/06, as amended, (the “Building Code”).

AND IN THE MATTER OF an application by Albert Schepers, for the resolution of a dispute with Peter Valore, to determine whether the proposal to use alternative methods of calculating the snow load for the design of trusses for an as-constructed greenhouse provides sufficiency of compliance with Sentence 1.3.1.2.(1) of Division A, of the Building Code, and Sentence 2.2.2.4.(1) of the National Farm Building Code of Canada 1995, at 1475 County Road 34 East, Town of Kingsville, Ontario.

APPLICANT

Albert Schepers
GS Engineering Consultants Inc.
Windsor, Ontario

RESPONDENT

Peter Valore
Chief Building Official
Town of Kingsville, Ontario

PANEL

Tony Chow, Chair
Leslie Morgan
Susan Friedrich

PLACE

City of Toronto, Ontario

DATE OF HEARING

July 23, 2015

DATE OF RULING

July 23, 2015

APPEARANCES

Albert Schepers
GS Engineering Consultants Inc.
Windsor, Ontario
Applicant

Peter Valore
Chief Building Official
Town of Kingsville, Ontario
Respondent

RULING

 

1. Commission Ruling

It is the decision of the Building Code Commission that the proposal to use alternative methods of calculating the snow load for the design of trusses for an as-constructed greenhouse does not provide sufficiency of compliance with Sentence 1.3.1.2.(1) of Division A, of the Building Code, or Sentence 2.2.2.4.(1) of the National Farm Building Code of Canada 1995, at 1475 County Road 34 East, Town of Kingsville, Ontario.

2. Reasons

  1. Sentence 1.3.1.2.(1) of Division A, of the Building Code states, “Except as provided in Sentences (2) to (4), farm buildings shall conform to the requirements in the CCBFC, ‘National Farm Building Code of Canada”. Sentence 2.2.2.4.(1) of the National Farm Building Code of Canada 1995 states, “Where a heating and drainage system is installed to prevent the accumulation of snow and water, the supporting structure for the light transmitting roof area of greenhouses of low human occupancy shall be designed for a uniform snow load of not less than 0.7kPa”.

    The Commission heard evidence and testimony that 0.7kPa was not achieved in the load test conducted for the proposed trusses.

  2. Sentence 4.1.7.1.(1) of the 1997 Building Code provides the formula for determining the specified loading due to snow accumulation. The formula consists of a factored ground snow load plus a 1:50 rain load. The CCBFC permits a greenhouse with low human occupancy to be designed for a uniform snow load of not less than 0.7 kPa but does not exempt the rain load. The Commission heard evidence and testimony that the calculation provided by the engineer in determining the specified snow load did not include the rain load.

  3. The Commission heard evidence and testimony that the subject building, as built, does not conform to the approved building permit drawings.

  4. No compensating measures were offered.

  5. Although lower snow loads may be acceptable in other countries, the Commission did not hear sufficient rationale to support using lower snow loads than required by the Ontario Building Code.

Dated at the City of Toronto this 23rd day in the month of July in the year 2015 for application number B 2015-16.

Tony Chow, Chair

Leslie Morgan

Susan Freidrich