NORTH CAROLINA HOME INSPECTION
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What shingles on the roof area have the least amount of wear?
The Cap or ridge shingles
Weather deck is the material placed under what type of roof?
Wood Shingles
What determines the size of your roof gutters?
The average yearly rainfall in your area
Where are the most amount of leaks in a roof area?
At roof penetrations
Which shingle typically lasts the longest if installed correctly, and which
part of this shingle typically fails first?
Slate Shingles / the nails
What device is present on a heat pump but not on an A/C unit?
Reversing Valve
,What is it called when the outside temperature at which capacity of the
heat pump matches building heat loss?
Balance Point
What should the temperature drop be across the evaporator coil?
15 - 20 degrees
What data is required by the SOP when inspecting a central A/C unit?
Max Breaker, Tonnage, Age
What is the most common cause for frost on the line set?
Air filters are dirty
What components make up an A/C unit and where are they located?
Condenser Outside / Evaporator Coil Inside
What is it called when a refrigerant absorbs heat when changing from a
liquid to a gas? Also, does it happen inside or outside?
Endothermic / Inside
What is it called when a refrigerant releases heat when changing from a
gas to a liquid? Also, does it happen inside or outside?
,Exothermic / Outside
What is an A/C measured in?
Tonnage
What is heat measured in?
BTU / British Thermal Units
Where is the capacity and age found on an A/C unit?
Capacity - Model Number / Age - Serial Number
A heat pump should be tested in cooling mode only if the outside
temperature is at or above what temperature? What is the temperature if
it was in heat mode?
Above 60-65 degrees / Below 60-65 Degrees
What is the key factor of geothermal heat pumps?
Ground Loops
Which line of the A/C unit has to be insulated through its entire length?
Suction Line
What does SEER stand for?
, Seasonal Energy Efficiency Ratio
3 Main type of Rafters?
Purlins, Collar Tie, Knee Wall
What is the maximum diameter of a hole you're able to cut on a joist?
Fraction depth?
2" / 1/3
How much bearing do you need for a Joist?
1 ½" or rim board, 3" on beam
What 3 main types of foundations?
Basement, Crawl Space, Slab
What soil type are houses commonly built on?
Clay
What is usually the first thing you need to know when starting a house's
foundation?
Frost Depth
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