(ie) a home 20′x20′ with 8′ sidewalls 1 door 3′x6′ and 4 windows 2′x3′ with an envelope of fiberglass verse’s foam what would be the energy savings per year per product?
The difference between these two products will depend on their U-values. First you need to know the thermal conductivity of each material. Then you need to determine also the thicknesses of each material. Then you will get the thermal resistance of each material by dividing the thickess over the specified thermal conductivity of material. And finally, the inverse of thermal resistance is the U-value which determines the performance of each insulating material.The lower the value means the product gives a better insulation performance for the building.
Energy Savings per year will depend to a lot of factor. Since that you’ve given already the dimension of the building, we need also to detemine the function of the structure, base material, A/C performance etc…
is there a formula to measure the difference between fiberglass insulation and spray polyurethane foam?
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The difference between these two products will depend on their U-values. First you need to know the thermal conductivity of each material. Then you need to determine also the thicknesses of each material. Then you will get the thermal resistance of each material by dividing the thickess over the specified thermal conductivity of material. And finally, the inverse of thermal resistance is the U-value which determines the performance of each insulating material.The lower the value means the product gives a better insulation performance for the building.
Energy Savings per year will depend to a lot of factor. Since that you’ve given already the dimension of the building, we need also to detemine the function of the structure, base material, A/C performance etc…
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