LTTR Values Chart: ACFoam®-II
| LTTR-Value | Thickness | RSI* | PCS/PKG | Metal Deck Flute Spanability | ||
| in | mm | in | mm | |||
| 6.0 9.0 12.1 15.3 18.5 19.1 20.4 25.0 |
1.0 1.5 2.0 2.5 3.0 3.1 3.3 4.0 |
25.40 38.10 50.8 63.50 76.20 78.74 83.82 101.60 |
1.06 1.58 2.13 2.69 3.26 3.36 3.59 4.40 |
48 32 24 19 16 15 14 12 |
2.625 4.375 4.375 4.375 4.375 4.375 4.375 4.375 |
66.68 111.13 111.13 111.13 111.13 111.13 111.13 111.13 |
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LTTR (long-term thermal resistance) values were determined in accordance with CAN/ULC-S770 and ASTM C 1289. 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. 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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