1 Room utilization â Actual room time used during a case(s) divided by total free time for a given room.  Block utilization â Actual room time used during a case(s) divided by total allocated amount of time for a surgeon. Block time allocation is usually set aside for specific surgeons, but can also be defined for the group they belong to or the surgical service(s) the surgeon is associated with.
The most common insulation materials are fiberglass, cellulose and foam. Insulation types include loose fill, batts, rolls, foam board, spray board and vapor barriers. Tip: The type of insulation you need depends on which is currently installed and the required R-value. Blown-in/loose fill. 1  Usually made of fiberglass or cellulose (recycled paper fiber) 2  Blown or sprayed into place with pneumatic equipment. 3  Ideal for hard-to-reach areas such as attics.  Can fill wall cavities and installed over existing insulation.
Attic fan. A powered attic ventilator, or attic fan, is a ventilation fan which regulates the heat level of a building's attic by exhausting hot air. A thermostat is used to automatically turn the fan off and on, while sometimes a manual switch is used. An attic fan can be gable mounted or roof mounted. Additional vents are required to draw in fresh air as the hot air is exhausted. Attic fans are typically used in warmer months, when temperatures in an attic can exceed 120 Â°F. A fan may be installed in an