ACFoam®-IV LTTR | Atlas Roofing Corporation

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LTTR Values: ACFoam-IV

LTTR-Value	Thickness		RSI*	PCS/PKG	Metal Deck Flute Spanability
	in	mm			in	mm
3.0 6.0 12.1 15.3 17.2 18.5 19.1 20.4	0.5 1.0 2.0 2.5 2.8 3.0 3.1 3.3	12.70 25.40 50.80 63.50 71.12 76.20 78.74 83.82	0.53 1.06 2.13 2.69 3.03 3.26 3.36 3.59	46 48 24 19 17 16 15 14	N/A 2.625 4.375 4.375 4.375 4.375 4.375 4.375	N/A 66.68 111.13 111.13 111.13 111.13 111.13 111.13
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. 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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