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The Water Cooler
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Best home insulation?
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<blockquote data-quote="-Pjackso" data-source="post: 3231946" data-attributes="member: 8119"><p>That article is terrible. They are trying to sell you something.</p><p>R-value is merely the ability to resist heat-flow. </p><p></p><p></p><p>Rawhide,</p><p>What you are wanting is a heat-load analysis - and the respective costs ($) to supplement the heat loss (or gain).</p><p>It will be strongly dependent on your proposed home design, orientation, air-infiltration factors, windows (solar-gain), etc.</p><p>Your builder (or architect) should have software to help determine this. (If not, ask other builders)</p><p></p><p>Open-cell foam insulation has approximately the same value as fiberglass insulation. </p><p>Current building practices uses 'house wrap' to cut down on air-infiltration (regardless of insulation type), so the advantage of foam isn't as pronounced anymore.</p><p></p><p></p><p>More insulating R-value is better (of course) and will have a long-lasting passive effect of reduced heating costs.</p><p>If you want an ROI estimate - then talk to your builder. </p><p>Have them run the simulations based on multiple build scenarios (foam, fiberglass, and oversized walls w/fiberglass, etc).</p></blockquote><p></p>
[QUOTE="-Pjackso, post: 3231946, member: 8119"] That article is terrible. They are trying to sell you something. R-value is merely the ability to resist heat-flow. Rawhide, What you are wanting is a heat-load analysis - and the respective costs ($) to supplement the heat loss (or gain). It will be strongly dependent on your proposed home design, orientation, air-infiltration factors, windows (solar-gain), etc. Your builder (or architect) should have software to help determine this. (If not, ask other builders) Open-cell foam insulation has approximately the same value as fiberglass insulation. Current building practices uses 'house wrap' to cut down on air-infiltration (regardless of insulation type), so the advantage of foam isn't as pronounced anymore. More insulating R-value is better (of course) and will have a long-lasting passive effect of reduced heating costs. If you want an ROI estimate - then talk to your builder. Have them run the simulations based on multiple build scenarios (foam, fiberglass, and oversized walls w/fiberglass, etc). [/QUOTE]
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