CHROMIX Admixtures may contribute to earning LEED® points under the Sustainable Sites category: 7.1 Heat Island Effect, Non-Roof for New Construction, Existing Building, Schools and Core and Shell by having a Solar Reflectance Index (SRI) of at least 29 or greater as measured by ASTM E903 or ASTM C1549. Learn more.

Below are Solar Reflectance Index ("SRI") values for standard CHROMIX Colors.*
Note that SRI values from field installations can differ from those listed due to the materials used, finishing practices such as excessive burnishing, and a variety of other conditions. The color achieved is influenced by local materials. Scofield's Technical Data Sheet requires that a mockup be done under actual jobsite conditions using each color. Prior to beginning the job itself, each SRI should be determined and approved by a commercial laboratory that is equipped to perform SRI testing in accordance with acceptable ASTM standards.

Note: plain gray concrete has an average SRI of 35.
Click here for the CHROMIX Admixtures SRI chart in PDF format.

CHROMIX Admixtures color	SRI**
5130 Spring Beige	31
5234 Summer Beige	43
0288 Autumn Beige	40
6063 Winter Beige	38
3987 Porcelain Gray	44
4821 Shady Red	23
1266 Cool Gray	27
5238 Sunbaked Clay	29
C-29 Dusty Mauve	43
C-11 Desert Sand	39
C-20 Limestone	52
C-25 Sombrero Buff	51
C-26 Antique Cork	42
C-12 Mesa Beige	47
C-21 Adobe tan	32
C-15 Coachella Sand	45
C-27 Westwood Brown	24
C-13 Tawny Pink	42
C-22 Coral Red	36
C-32 Quarry Red	35
C-31 Shadow Slate	24
C-14 French Gray	24
C-24 Charcoal	12
C-34 Dark Gray	10
1019 Bridgeport Beige	43
4662 Santa Fe Tile	39
1014 Canyon Tan	40
1067 Fiesta Red	34
3292 Navajo Red	29
5402 Taos Taupe	31
4302 Roman Tile	32
1015 Estruscan Tile	29
5460 Timberline Tan	36
1734 English Rose	36
3410 Nutmeg Brown	26
5265 Surrey Beige	33
1010 Brownstone	18
1589 Durango Brown	28
3237 Musky Mulberry	27
1017 Barcelona Brown	25
1906 Fennel green	38
5059 Sorrento Red	31
1677 Eldorado Tan	36
6213 Golden Maize	44
3172 Moonlight Gray	29
1078 Chicory Spice	14
5178 Stetson Buff	29
4959 Smoky Plum	13

*Note that these are derived from laboratory tests using medium gray cement using a mix design of 5.5 sacks per cubic yard without pozzolans or other supplemental cementitious material.

**SRI values are calculated following ASTM E 903 and E 891 (100-point ordinate method), then the E 1980 SRI calculator following R. Levensen of LBNL using a materials emittance of 0.90 and typical ambient meteorological parameters.