MarkhamBuilding InspectionsInspections
Energy Efficiency Of Manufactured Windows For Buildings Of Residential Occupancy
Published by City of Markham
This is the City of Markham’s document, as published on its website on 18 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice
- Type
- Guide
- Published by
- City of Markham
- Date
- January 1, 2025
- Also called
- Energy Efficiency of Manufactured Windows for Buildings of Residential Occupancy
- For
- builder
- Building types
- All building types
- Pages
- 5
- Instruments
- MMA Supplementary Standard SB-12, Energy Efficiency for Housing · CAN/CSA-A440.2, Fenestration Energy Performance · NFRC 100 · NFRC 200 · AAMA/WDMA/CSA 101/I.S.2/A440, North American Fenestration Standard/Specification for Windows, Doors, and Skylights
Overview
Builder Tip No. 55 of the City of Markham Building Standards Department, dated January 1, 2025 and updated to the 2024 OBC, filed with the City's housing tips under the 2024 Ontario Building Code. It quotes Article 12.2.1.2., SB-12 Articles 1.1.1.3. and 3.1.1.9., and Articles 9.7.3.2. to 9.7.4.3. on window thermal performance, thermal breaks, U-values and temperature index, and manufactured windows under the North American Fenestration Standard. Its objective compares the prescriptive and performance methods, the energy rating of 80, EnerGuide for New Houses and ENERGY STAR for New Homes.
What it covers
- 12.2.1.2. Energy Efficiency Design
- SB-12- 1.1.1.3. Compliance Options
- SB-12- 3.1.1.9. Thermal Performance of Windows, Skylights and Sliding Doors
- 9.7.3.2. Heat Transfer Performance
- 9.7.3.3. Thermal Characteristics of Windows, Doors and Skylights
- 9.7.4. Manufactured Windows, Doors and Skylights
- 9.7.4.1. Application
- 9.7.4.2. General
- 9.7.4.3. Performance Requirements
- Objective
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