RValues Structural Insulated Panel Association

RAYCORE's 5 1/2 inch thick polyurethane SIP panel has an R-value of 42. That's 75 percent more R-value for half the price! To reach a similar R-value with a sandwich panel, you would have to purchase their 10 1/4 inch thick panel with an R-40 or their 12 1/4 inch thick thick panel with an R-48 insulation value.

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The overall, nominal R-value of an SIPs wall is a function of its thickness and the type of core insulation used. Typically EPS foam is R-4 per inch, XPS is R-5 per inch, and polyisocyanurate and polyurethane are approximately R-6.5 per inch (the higher R-value cores are correspondingly more expensive). Building Design and Planning Considerations

SIPs have higher Rvalues Residential Design

R-value is a measure of how well insulation resists the flow of heat or cold. The higher the R-value, the better the product's ability to serve as an effective thermal barrier. But, how exactly are SIPs able to achieve such high ratings? SIP Panels' Rigid Foam Insulation + OSB = superior insulating power

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PREMIER SIPS R-VALUES & U-FACTORS NOTE: See Detail Premier-102 and Technical Bulletins for additional R-value & U-Factor considerations. Both are available at www.premiersips.com. PREMIER SIPS WEIGHT Premier SIPS are typically manufactured with 7/16" OSB facings on both sides. Custom 5/8" or 3/4" OSB facings are available as an alternative.

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Insulation Types of Insulation When insulating your home, you can choose from many types of insulation. To choose the best type of insulation, you should first determine the following: Where you want or need to install/add insulation The recommended R-values for areas you want to insulate. Installing Insulation

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A Breeze to Install. SIPs are the simple way to build high-performance structures that meet or exceed building requirements and energy codes. SIP panels are the easiest method to reach standards for Air Infiltration, R-Values and Continuous Insulation while significantly reducing time and labor.

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Studies conducted by the Department of Energy show that fiberglass insulation in an attic rated at R-19 performed at R-9 when temperatures outside dropped to -8°F due to convective currents within the insulation. Meanwhile, the R-values for Structural Insulated Panels INCREASE. While SIPs are green, ACME Panel SIPs are even greener.

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In contrast, the rigid foam insulation used in SIPs actually performs better in colder temperatures. Expanded polystyrene with a stated R-value of R 3.9 per inch at 75°F was tested at R-4.2 at per inch at 50°F and R-4.4 per inch at 25°F. More importantly, because all types of SIPs have solid insulation completely

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R value is used to measure thermal resistance of walls, floors and ceilings. U value is the inverse of R value- 1/R value = U value, and 1/U value = R value.

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R-value was R-21 for a 6-inch SIP wall or 96% higher than the whole-wall R-value of R-11 for the 2x6-inch wall using theoretically R-19 fiberglass insulation. ORNL also tested a SIP structure side by side with a conventional 2x4 structure to evaluate air leakage. The SIP structure had only 7% the air leakage of the conventional structure.

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Note: The thermal resistance (R-value/RSI-value) and thermal transmittance (U-factor) values above are for an Insulspan SIP only at a mean temperature of 75 ° F (24 ° C) and do not include panel framing or connection material, interior/exterior cladding or finish materials and interior/exterior air films. Insulspan SIP wall and roof assemblies require fewer framing members than conventional.

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Structural insulated panels (SIPs) offer higher R-values, contributing to increased energy efficiency, lower heating and cooling costs, and enhanced comfort in buildings. What Is R-value? R-value, in the context of construction and insulation, refers to the thermal resistance of a material or assembly.

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R-Values with SIPs A SIP home or commercial building allows better control over indoor air quality because the airtight building envelope limits incoming air to controlled ventilation which filters out contaminants and allergens.

Comparison of the mean SIP values of RT prediction for 2013, with the... Download Scientific

SIP Calculated R-Values But R-value doesn't tell the whole story. Laboratory tests that determine R-value have little resemblance to how insulation actually performs in a home.

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Thermal R-Values of Insulspan SIP Structures The energy efficiency of insulation is most commonly measured by its R-value. R-value refers to the ability of a given material to resist thermal transfer. The higher the R-value, the more resistant the material is, the less energy you use, and the lower your energy bills. Jump to Insulspan Rating Charts