ASHRAE STANDARD - 55R

BSR/ASHRAE Standard 55P, Thermal Environmental Conditions for Human Occupancy 2/24/03
Third Public Review Draft (Independent Substantive Changes to the Second Public Review)
for people not wearing shoes. Nor does itThis standard does not address acceptable floor temperatures
when people sit on the floor.
Figure 5.2.4.4-1. Local discomfort caused by warm and cool floors.
The limits for floor temperature are specified in Table 5.2.4.4-1. Alternatively, Figure 5.2.4.4-1 may be
used in conjunction with the PD limits from Table 5.2.4-1 to determine the allowable floor temperature
range.
TABLE 5.2.4.4-1. Allowable range of the floor temperature for the three classes of the thermal
environment.
Class
A
B
C
Range of surface temperature of the floor °C ( o F)
19 – 29 (66.2 - 84.2)
19 - 29 (66.2 – 84.2)
17 - 31 (62.6 - 87.8)
19