LTTR Values: Gemini™ Pre-Cut Crickets
| Marking | Packaging | Thermal Average | Thickness | Slope |
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| - | Pieces per Box | LTTR Value* | RSI** | in | mm | per ft | percent |
| X Y Q 2" |
4 2 2 2 |
6.0 12.1 9.0 12.1 |
1.06 2.13 1.58 2.13 |
0.5 - 1.5 1.5 - 2.5 0.5 - 2.5 2.0 |
12 - 38 38 - 63 12 - 63 50 |
1/4" 1/4" 1/2" N/A |
2% 2% 4% N/A |
| *LTTR (long-term thermal resistance) values were determined in accordance with CAN/ULC-S770 and ASTM C 1289, Annex A1. All test samples were third-party selected and tested by an accredited material testing laboratory. The LTTR€ˆresults were reviewed and authorized by FM€ˆApprovals and certified by the PIMA€ˆQuality Mark Program. The R-value (1.39) for 1/2 in. perlite was provided by ASHRAE Handbook, Fundamentals. The R-value (.28) for 1/4 in. glass-mat gypsum board was provided by the glass-mat gypsum board manufacturer. The R-value (1.3) of 1/2 in. high density wood fiberboard was provided by the wood fiberboard manufacturer. Atlas recommends multi-layering when desired insulation thicknesses are greater than 2.7 in. ** RSI is the metric expression of R-value (m2 • K/W). |
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Dimensions & Packaging: Gemini™ Pre-Cut Crickets
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Gemini Pre-Cut Crickets: 1/4" Slope Material Quantity Guide | 126 k | |
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Gemini Pre-Cut Crickets: 1/2" Slope Material Quantity Guide | 109 k |
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