CEC Promotes “Skinny” Triple Glazed Windows as Solution to Title 24’s Challenge

CEC Promotes “Skinny” Triple Glazed Windows as Solution to Title 24’s Challenge
Photo source
aamanet.org
The California Energy Commission (CEC) is seeking to improve energy efficiency through alternate products, such as the Thin Triple window.

During the AAMA Western Region Summit, Payam Bozorchami with the CEC discussed an important element of the 2019 California Energy Standard - the energy design rating (EDR) metric.

EDR, the ratio of Time Dependent Valuation (TDV) energy used by a proposed home to the TDV of a 2006 IECC-compliant home, can be used to determine compliance with the California Energy Standard (Title 24). The resulting EDR score ranges from 0 to 100, with zero being a full Zero Net Energy (ZNE) building, while 100 is an IECC-compliant building. It provides builders with flexibility to meet performance targets. Buildings compliant with the 2019 California Energy Standards will typically have EDR scores in the 15 to 27 range.

Increased window efficiency is a major element to improve the EDR score of the residential building envelope. Along these lines, Bozorchami described the advanced thin center glass triple pane window – a recent product development that achieves triple pane ratings within the typical thickness of a double pane window (~18 mm) by placing a thin (0.7 mm) glass layer between the standard outer layers (3 mm). Low-E coatings on surfaces 2 and 5, krypton gas fill and the use of a foam spacer rounds out the configuration. The U-factor is reduced from typically 0.33 to 0.25 or as low as 0.14 (R-7).

Because the design has the same dimensions and about the same weight as a double-pane window, it is an attractive solution that can be used in new products and to retrofit existing frames. Plus, the design can be produced at reasonable cost.

“The two manufacturers who are already making thin triple pane windows have reported no issues with testing, including structural, or shipments of these products,” said Bozorchami.

Formed in mid-2018, the California Partnership for Advanced Windows (C-PAW) facilitates market adoption of the Thin Triple solution. Additionally supported by Lawrence Berkeley National Labs and several state utilities, as well as cooperating window manufacturers, the organization offers an Online Resource Center (ORC) at energy.ca.gov/title24/orc.

In addition, the quarterly email Blueprint Newsletter offers clarifications on frequently asked questions; users may subscribe via energy.ca.gov/efficiency/blueprint. Also, to receive email updates on the California Energy Standards, sign up at energy.ca.gov/listservers.

600450 CEC Promotes “Skinny” Triple Glazed Windows as Solution to Title 24’s Challenge glassonweb.com

Others also read

The 17th International Glass Products, Glass Manufacturing, Processing & Materials Exhibition take place at Halls 5 & 6 Indonesia Convention Exhibition (ICE), Jakarta from 12 - 14 November 2019.
The world’s largest convening of green building and sustainability leaders takes place Nov. 19-22; registration is now open.
The 2020 Glazing Summit will take place on Thursday, October 8th at Edgbaston Stadium and Conference Centre.
The HEGLA Group, HEGLA TaiFin, HEGLA-HANIC and HEGLA boraident will be exhibiting jointly under the motto “Shaping the future and providing impulses for the present”.
The company will present its software for glass fabricators and window and door manufacturers.
At Guardian Glass, it’s part of our vision to help people improve their lives and to do so responsibly while consuming fewer resources.

From industry

Polígono Industrial El Bayo, parcela I, 19
24492 Cubillos del Sil León
Spain

10924 Granite Street, Suite 200
Charlotte, NC 28273
United States

NEWS RELATED PRODUCTS

Diamon-Fusion International, Inc.
Diamon-Fusion International, Inc.
Diamon-Fusion International, Inc.
Diamon-Fusion International, Inc.
Trex Commercial Products

Add new comment