Insulating concrete and foamed concrete can be used as insulation on a steel roof deck. Both these concretes must also include board insulation. Which board insulation is used and why is board insulation necessary when the concrete has insulating value?
What will be an ideal response?
Expanded polystyrene (EPS) board insulation is sandwiched between two pours of insulating (or foamed) concrete.
The reason for the use of EPS board is that its R-value (of 4.0 per inch) is much higher than the R-value of
insulating concrete (approximately 1.5 per inch).
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The distance between the graduations on the sleeve of a micrometer is ________ of an inch
A) .001 in. B) .025 in. C) .0001 in. D) .040 in.
Describe a hole table.
What will be an ideal response?
Because of the downward force produced by the condenser's fan, ____________________ bearings are typically used on the condenser's fan motor.
Fill in the blank(s) with the appropriate word(s).