California energy code windows

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Amendment styling: Highlight changes enacted by your local jurisdiction. Never miss important differences made to the code. Code diagrams: Unpack the code through illustrations and descriptions. Features Overview. A reliable and up-to-date source of codes. Rapidly and efficiently calculate project parameters. Glass firmly supported on all four edges shall be glazed with minimum laps and edge clearances set forth in Table TABLE Over 50 sq.

Resilient Setting Material 4 Not Required Required Glass edge clearance in fixed openings shall not be less than required to provide for wind and earthquake drift. Glass retainers such as metal, wood or vinyl face stops, glazing beads, gaskets, glazing clips and glazing channels shall be of sufficient strength and fixation to serve this purpose.

Resilient setting material shall include preformed rubber or vinyl plastic gaskets or other materials which are proved to the satisfaction of the building official to remain resilient. The design of vertical glazing shall be based on Equation For glass sloped 30 degrees 0.

For glass sloped more than 30 degrees 0. The design of sloped glazing shall be based on Equation For designs outside the scope of this section, an analysis or test data for the specific installation shall be prepared by a registered design professional.

Section Sloped Glazing and Skylights. This section applies to the installation of glass and other transparent, translucent or opaque glazing material installed at a slope more than 15 degrees 0. Sloped glazing shall be any of the following materials, subject to the listed limitations.

For monolithic glazing systems, the glazing material of the single light or layer shall be laminated glass with a minimum mil 0. For multiple-layer glazing systems, each light or layer shall consist of any of the glazing materials specified in Item 1 above.

Exception: In monolithic and multiple-layer sloped glazing systems, the following applies: Fully tempered glass installed without protective screens where glazed between intervening floors at a slope of 30 degrees 0.

Screens are not required below any glazing material, including annealed glass, where the walking surface below the glazing material is permanently protected from the risk of falling glass or the area below the glazing material is not a walking surface. Any glazing material, including annealed glass, is permitted to be installed without screens in the sloped glazing systems of commercial or detached noncombustible greenhouses used exclusively for growing plants and not open to the public, provided that the height of the greenhouse at the ridge does not exceed 30 feet mm above grade.

Screens shall not be required in individual dwelling units in Groups R-2 , R-3 and R-4 where fully tempered glass is used as single glazing or as both panes in an insulating glass unit, and the following conditions are met: 4.

Each pane of the glass is 16 square feet 1. The highest point of the glass is 12 feet mm or less above any walking surface or other accessible area. Each pane of glass is 16 square feet 1.

The highest point of the glass is 12 feet mm or less above a walking surface or other accessible area. The design of skylights shall be based on Equation For 0. Section Safety Glazing. Except as provided in Sections Glass-block walls shall comply with Section Louvered windows and jalousies shall comply with Section Use is only permitted by the exception to Section Exceptions: For other than tempered glass, manufacturer's designations are not required, provided the building official approves the use of a certificate, affidavit or other evidence confirming compliance with this code.

Tempered spandrel glass is permitted to be identified by the manufacturer with a removable paper designation. Multipane glazed assemblies having individual panes not exceeding 1 square foot 0. The locations specified in Sections Exceptions: Glazed openings of a size through which a 3-inch-diameter 76 mm sphere is unable to pass. Decorative glazing. Glazing materials used as curved glazed panels in revolving doors. Commercial refrigerated cabinet glazed doors. Exceptions: Decorative glazing.

Where there is an intervening wall or other permanent barrier between the door and glazing. Where access through the door is to a closet or storage area 3 feet mm or less in depth. Glazing in this application shall comply with Section Glazing in walls on the latch side of and perpendicular to the plane of the door in a closed position in one- and two-family dwellings or within dwelling units in Group R Glazing in an individual fixed or operable panel that meets all of the following conditions shall be considered a hazardous location: The exposed area of an individual pane is greater than 9 square feet 0.

The bottom edge of the glazing is less than 18 inches mm above the floor. The top edge of the glazing is greater than 36 inches mm above the floor. One or more walking surface s are within 36 inches mm , measured horizontally and in a straight line, of the plane of the glazing. Where a horizontal rail is installed on the accessible side s of the glazing 34 to 38 inches to mm above the walking surface.

Outboard panes in insulating glass units or multiple glazing where the bottom exposed edge of the glass is 25 feet mm or more above any grade , roof, walking surface or other horizontal or sloped within 45 degrees of horizontal 0.

Glazing in guards and railings, including structural baluster panels and nonstructural in- fill panels , regardless of area or height above a walking surface shall be considered a hazardous location. Exceptions: The side of a stairway , landing or ramp that has a guard complying with the provisions of Sections and Glazing 36 inches mm or more measured horizontally from the walking surface. Fire department glass access panels shall be of tempered glass.

For insulating glass units, all panes shall be tempered glass. Testimonials Contact. Windows, Skylights and Title The Title 24 energy standards recognize three types of fenestration: Manufactured windows, glass doors, and skylights.

Manufactured windows, glass doors, and skylights are constructed of materials which are factory-cut or otherwise factory-formed with the specific intention of being used to fabricate a fenestration product. A manufactured fenestration product is typically factory-assembled before delivery to a job site. This is the most common type of fenestration in residential construction. Site-built fenestration is designed to be field-glazed or assembled in the field using specific factory-cut or otherwise factory-formed framing and glazing units.

These are more common in non-residential construction. The glazing contractor may also pre-assemble site-built fenestration at the shop before final installation. Examples of site-built fenestration include storefront systems, curtain walls, and atrium roof systems. Field-fabricated products are built on site using standard dimensional lumber or other materials not intentionally prepared for use as a fenestration product.

Improved Window Performance With the Title 24 energy standards update, the prescriptive maximum u-factor for all fenestration products windows, glass doors, skylights has been changed to 0.

For windows with NFRC ratings, these performance features are accounted for in the U-factor and SHGC ratings: Frame materials, design, and configuration including cross-sectional characteristics. Fenestration is usually framed in wood, aluminum, vinyl, or composites of these. The impact of climate change is accelerating, bringing an even greater need for buildings that are comfortable, efficient and resilient.

Each updated code guides the construction of buildings to better withstand extreme weather, lower energy costs and reduce climate and air pollution. Expanded adoption of new energy-efficient technologies will help reduce costs of the technology over time. For more information, view the executive summary and learn more at the standards web page. It has seven core responsibilities : developing renewable energy, transforming transportation, increasing energy efficiency, investing in energy innovation, advancing state energy policy, certifying thermal power plants, and preparing for energy emergencies.