Can someone clarify the ASHRAE Fundamental 2017 (SI Units) (See Below) Indoor and Outdoor film resistances. The manual states that it comes from Table 3 and in the description of table 3 it states "Table 3 provides effective resistance values for plane (i.e., generally flat) air spaces that are enclosed within an assembly." So the values listed below should be found in the table.
- How do you determine the direction of heat flow (I'd assume for a wall it's horizontal)
- What mean temperature do I use
- What air space to use?
Give the values 0.030 and 0.120 I figured I could reverse out the logic. But 0.120 is not even listed in Table 3?