2 owens corning 703 fiberglass acoustical board is the preferred product for use as the core insulation for acoustical wall and ceiling panels.
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The center of panel insulation value for dow corning s vip is r 39 per inch but a standard 2 x 4 panel provides approximately r 30 per inch overall.
For polyurethane pur and polyisocyanurate pir foam insulation systems our high performance surfactants boost energy efficiency.
For insulated panels and boards we offer polyurethane systems that are lightweight increase energy efficiency improve longevity and meet the most demanding industry requirements.
In brick or concrete masonry walls it can deliver continuous r30 insulation while maintaining a thin wall design.
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The panel offers five to 10 times better thermal resistance than conventional insulation materials while providing design flexibility improving aesthetics and saving space.
Barrier ultra r tm box kits are also available.
Because of the construction the panels have thermal bridging at the edges much like windows and as a result the whole panel r value is lower than that of the center.
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The reasons for the popularity of the 2 703 fiberglass panels mainly has to due with the panels ability to absorb both mid and high range frequencies while being lightweight rigid and economically.
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For general information on insulation testing see insulation testing.