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Email this pageDIVISION B - PART 7

APPENDIX A


to the First Round of Consultation on Potential Changes for the Next Edition of the Building Code

October - November 2010



PROPOSED AMENDMENTS TO DIVISION B, PART 7


CHANGE NUMBER

CODE REFERENCE

SUBJECT

TYPE

B-07-02-01

Div. B 7.2.2.2.(8)

Clarify and harmonize provisions for macerating toilet systems with mNPC.

OBC-mNPC

B-07-02-03

Div. B 7.2.3.1.(3)

Permit a cleanout on the fixture outlet pipe and a separate cleanout immediately downstream of the trap, where a trap is installed below the floor and is not accessible for cleaning.

OBC-mNPC

B-07-02-04

Div. B 7.2.3.2.(3)

Require grease interceptors to conform to the CAN/CSA B481 series standards.

Provincial

B-07-02-05

Div. B 7.2.5.5.(1)

Require polyethylene water pipe, tubing and fittings to be certified to Series 160 or greater.

OBC-mNPC

B-07-02-06

Div. B 7.2.5.10.(1)(h)

Delete reference to the CAN/CSA-B182.7, “PSM Type Multilayer Polyvinylchloride (PVC) Sewer Pipe Having Reprocessed-Recycled Content”. to harmonize with mNPC.

OBC-mNPC

B-07-02-07

Div. B 7.2.6.10.(1)

Permit stainless steel potable domestic water piping.

Provincial

B-07-02-08

Div. B 7.2.9.2.(4)

Revise Sentence 7.2.9.2.(4) as shown and relocate requirements for joints in copper tubes installed underground to new Article 7.3.3.12. To harmonize with mNPC.

OBC-mNPC

B-07-02-09

Div. B 7.2.10.7.

Add a new Article 7.2.10.7. to address the certification requirement of CSA/NSF 61 for linings and coatings of domestic water tanks that come into contact with potable water.

Provincial

B-07-02-10

Div. B 7.2 .10.14.(1)

Revise thicknesses of vent pipe flashing materials specified to harmonize with the thicknesses specified for sheet metal flashing in Sentence 9.26.4.2.(1).

OBC-mNPC

B-07-02-11

Div. B 7.2.10.17.

Reference the CAN/CSA-B483.1, “Drinking water treatment systems” standard.

Provincial

B-07-02-12

Div. B

Table 7.2.11.2.

Revise Table 7.2.11.2. to permit polyethylene water piping certified to Series 160 or greater.

Provincial

B-07-02-13

Div. B A-7.2.3.1.(3)

Add a sketch to the Appendix Note to clarify the cleanout requirements.

OBC-mNPC

B-07-02-14

Div. B

A-7.2.10.16.(1)

Revise Appendix Note to address trap siphonage to harmonize with NPC

OBC-mNPC

B-07-03-01

Div. B 7.3.3.8.(4)

Clarify that the underside of the floor flange is to be top of the finished floor surface after renovation or construction.

Provincial

B-07-03-02

Div. B 7.3.3.12.

Relocate requirements for joints in copper tubes installed underground to new Article 7.3.3.12. to harmonize with mNPC.

OBC-mNPC

B-07-03-03

Div. B 7.3.4.5.(5)

Clarify that “the hangers” shall be supported by metal rods (editorial), to harmonize with the mNPC

OBC-mNPC

B-07-03-04

Div. B 7.3.6.1.(6)

Add requirement for inspection and testing of a sewer lateral extension.

Provincial

B-07-04-01

Div. B

7.4.2.1.(4) - (5)

Limit vent pipe connections in a suds pressure zone to harmonize with the mNPC

OBC-mNPC

B-07-04-02

Div. B 7.4.2.2.(1)

Permit a direct connect to a storm drainage system if provisions are made to minimize storm sewage backup into the rainwater tank.

OBC-mNPC

B-07-04-03

Div. B 7.4.5.1.(4)

Add a new requirement for determining the size of a fixture trap.

Provincial

B-07-04-04

Div. B 7.4.6.4.(3)

Require the installation of a backwater valve on any fixture located below the upstream sanitary manhole cover when a residential building is serviced by a public sanitary sewer system that may be subject to backflow.

OBC-mNPC

B-07-04-05

Div. B 7.4.7.1.(10)

Clarify that a cleanout for a fixture drain serving a kitchen sink shall be installed as close as possible to the trap outlet and be readily accessible.

Provincial

B-07-04-06

Div. B 7.4.7.3.(5)

Reference CSA standard for manhole covers and catch basins where required

Provincial

B-07-04-07

Div. B 7.4.8.1.(1)

Clarify that every fixture drain is not required to have a minimum slope of 1 in 50. Harmonize with the mNPC

OBC-mNPC

B-07-04-08

Div. B 7.4.9.2.(4)

Clarify the size of discharge pipe serving a macerating toilet system. Harmonize with the mNPC

OBC-mNPC

B-07-04-09

Div. B Table 7.4.9.3.

Increase minimum standpipe and trap sizes to address changes in clothes washer designs and prevalence of front-loading machines with faster pump capacities. Harmonize with the mNPC

OBC-mNPC

B-07-04-10

Div. B 7.4.10.4.(2)

Add requirement for the minimum capacity of scupper drains

to harmonize with the mNPC.

OBC-mNPC

B-07-04-11

Div. B 7.4.10.4.(3)

Require emergency roof overflows or scuppers where the height of the parapet is more than 150 mm or exceeds the height of the adjacent wall flashing, to harmonize with the mNPC.

OBC-mNPC

B-07-04-12

Div. B 7.4.10.6.

Delete Sentence 7.4.10.6.(4) and Table 7.4.10.6.B to eliminate a discrepancy betweenTable 7.4.10.6.A. and Table 7.4.6.10.B.

Provincial

B-07-04-13

Div. B A-7.4.2.1.(4)

Revise figure for suds pressure zones in Appendix Note, to harmonize with the mNPC

OBC-mNPC

B-07-04-14

Div. B Table 7.4.10.9.

Harmonize the maximum permitted hydraulic load drained to a horizontal storm drainage pipe with the mNPC.

OBC-mNPC

B-07-05-01

Div. B 7.5.2.1.(1)

Revise Clause to clarify the requirements of wet venting.

OBC-mNPC

B-07-05-02

Div. B 7.5.2.1.(1)(g)

Revise Clause to harmonize with NPC

OBC-mNPC

B-07-05-03

Div. B 7.5.4.2.(1)

Revise Sentence to harmonize with NPC

OBC-mNPC

B-07-05-04

Div. B 7.5.6.3.(6)

Add a new Sentence(6) to address the length of vertical leg.

Provincial

B-07-05-05

Div. B Table 7.5.6.3.

Revise Table for the Length of Trap Arm, to harmonize with the mNPC

OBC-mNPC

B-07-05-06

Div. B 7.5.6.5.(8)

Revise Sentence to address the required size of shingled roof flashing when fabricated on site.

Provincial

B-07-05-07

Div. B Table 7.5.7.1.

Revise Table for the Minimum Permitted Size of Vent Pipe Based on Size of Trap, to harmonize with the mNPC.

OBC-mNPC

B-07-05-08

Div. B 7.5.7.3.(2)

Replace the references to Tables 7.5.8.3. and 7.5.8.4. with references to Tables 7.4.10.6.A., 7.4.10.6.B., 7.4.10.7. and 7.5.8.1. to harmonize with the mNPC.

OBC-mNPC

B-07-05-09

Div. B 7.5.8.3.(1)

Clarify vent sizing, to harmonize with the mNPC.

OBC-mNPC

B-07-05-10

Div. B Table 7.5.8.4.

Revise the hydraulic loads in Table 7.5.8.4. match the loads in Table 7.4.10.6.A.. Harmonize with the mNPC.

OBC-mNPC

B-07-06-01

Div. B 7.6.1.1.

Clarify that good engineering practice for the design, fabrication and installation of potable water systems includes the ASHRAE Handbooks.

OBC-mNPC

B-07-06-03

Div. B 7.6.2.4.(8)

Clarify the type of backflow prevention devices required on residential buildings with access to an auxiliary water supply.

Provincial

B-07-06-04

Div. B 7.6.2.4.(9)

Require premise isolation for buildings or facilities with a potential moderate health hazard.

Provincial

B-07-06-05

Div. B 7.6.3.1.

Delete minimum flow pressures in Table 7.6.3.1.

Add fixture unit values for fixtures found in modern plumbing systems.

OBC-mNPC

B-07-06-06

Div. B 7.6.3.1.(1)

Require reference to the manufacturer’s specifications to determine the operating pressure of plumbing supply fittings.

OBC-mNPC

B-07-06-08

Div. B 7.6.3.2.

Add hydraulic load of urinals and water closets with direct flush valves.

OBC-mNPC

B-07-06-09

Div. B 7.6.3.4.(2)

Harmonize requirements for the minimum size of a water pipe serving a fixture with the mNPC.

OBC-mNPC

B-07-06-10

Div. B 7.6.3.4.(3)

Relocate and clarify requirements for supply pipe connections to harmonize with the mNPC.

OBC-mNPC

B-07-06-11

Div. B 7.6.3.4.(4)

Add a generic method for the sizing of a hot and cold water delivery system for one or two dwelling units or row houses that does not require professional involvement.

OBC-mNPC

B-07-06-12

Div. B 7.6.3.5.

Clarify that water flow velocities exceeding the values stated in Sentence 7.6.3.4.(4) may be used, provided the manufacturers recommendations are followed.

OBC-mNPC

B-07-06-14

 

Div. B A-7.6.5.

Add an Appendix Note to clarify hot water temperature requirements.

Provincial