Wright, John L.Sullivan, Harry F.2017-03-222017-03-221989VA-89-11-3http://hdl.handle.net/10012/11578© 1989 ASHRAE (www.ashrae.org). Published in ASHRAE Transactions, Volume 95, Part 2. For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAE's prior written permission.In cold climates the increased edge-glass heat transfer at the perimeter of a sealed glazing unit creates a special problem. This is where condensed water and frost most readily occur. One mechanism contributing to edge-glass heat transfer is edge-seal conduction. Very few data are available regarding the thermal resistance of the various edge-seal configurations that are commercially available. An experimental procedure has been devised whereby the thermal resistance of an edge-seal can be directly measured using a guarded heater plate apparatus. Results are reported for nine edge-seal test samples. In addition, results from similar tests provide measured thermal conductivities for four of the materials used in the construction of the edge-seal test samples and commercially available edge-seals.enMaterials scienceEnergy conservationEnergy consumptionGlazingThermal conductivityGlazing materialsDesignHeatersMeasuring instrumentsSealsTemperature measurementCoveringsBuilding systemsThermal InstrumentationEnergy utilizationArticle