PHIUS Latest Exam Questions With Complete Solutions
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Course
PHIUS
Institution
PHIUS
You are performing an energy model of a house intended for four inhabitants. There are 5 bedrooms and the interior conditioned floor area is 2200 s.f. PHIUS requires a Primary Energy limit of 3840 kWh/ for certification. What is the Specific Primary Energy limit for this house? - ANS 35.7 k...
PHIUS Latest Exam Questions With
Complete Solutions
You are performing an energy model of a house intended for four inhabitants. There are 5
bedrooms and the interior conditioned floor area is 2200 s.f. PHIUS requires a Primary Energy
limit of 3840 kWh/person.yr for certification. What is the Specific Primary Energy limit for this
house? - ANS 35.7 kBTU/sf.yr
An architect on a passive house project team in Chicago proposes glazing units with R-5 (U-0.2)
glazing. Chicago's ASHRAE 99% design temperature is 4.4°F. What will the interior surface
temperature of the glazing be at that design temperature? Round as needed to two (2) places
for your final result. Do not add surface films to the given R-value of the glazing. - ANS
58.59 °F
A window has the following attributes
Uglazing = 0.09 Btu/hr.ft2 .°F
Uframe = 0.14 Btu/hr.ft2 .°F
Window Width = 3ft
Window Height = 5ft
Frame Thickness = 3in
Psi spacer = 0.023 Btu/hr.ft .°F
Psi install = 0.015 Btu/hr.ft .°F
Calculate installed U value of the window (Uw-installed). Do NOT use rounding during the
calculation. Round manually to the 3rd decimal place for the result. (Select the Best Answer) -
ANS Uw installed = 0.140 BTU/hr.ft2 .F
You wish to compare the annual heat loss through two different wall assemblies you are
considering for a passive house enclosure. Wall 1 has an R-value of R-20 (hr.ft2.F/Btu). Wall 2
has an R-value of R-40 (hr.ft2.F/Btu). The project's climate has 4000 Heating Degree Days and
the net exterior wall area is 2000 ft2. What is the difference in annual heat loss between the two
assemblies? (Select the Best Answer) - ANS 4800 kBtu
A PHIUS+ retrofit for a small office building in Jacksonville, FL with 5000 ft2 interior conditioned
floor area has an outdoor concrete terrace of 50 ft length on the second floor. The terrace is not
thermally broken. A serious thermal bridge remains at the terrace after having planned for an
exterior insulation finish system to meet PHIUS+ requirements. The thermal bridge coefficient
for
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