This tool displays the impact of glazing geometry and U-value on occupant thermal comfort during winter months. It shows when it is possible to eliminate perimeter heat in cases where the glazing is ratio is small enough and U-Value is low enough to ensure warm interior glass temperature and thermally comfortable occupants.
More specifically, it quantifies thermal discomfort from both overall mean radiant heat loss to the cold glass as well as cold downdraft from the glass, which can cause local discomfort
Use the web version of the tool
Use the Rhino / Grasshopper plugin of the tool
Glazing and Winter Comfort Tool (GPL)
Copyright (c) 2013-2016, Payette Architects
The Glazing and Winter Comfort Tool is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
The Glazing and Winter Comfort Tool is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with the Glazing and Winter Comfort Tool; If not, see here.
@license GPL-3.0+ http://spdx.org/licenses/GPL-3.0+
Alejandra Menchaca
Andrea Love
Lynn Peterman
Vera Baranova
The Center for the Built Environment including:
Shichao Liu
Stefano Schiavon
Toby Cheung