What building component protects structural sheathing from bulk water infiltration? - ANS Water-resistive barrier
Which of the following choices is the most significant benefit of high-performance windows? - ANS Results in low building peak loads
What is a pressure-equalized r...
What building component protects structural sheathing from bulk water infiltration? - ANS
Water-resistive barrier
Which of the following choices is the most significant benefit of high-performance windows? -
ANS Results in low building peak loads
What is a pressure-equalized rain screen? - ANS A space, open at both ends to facilitate
air circulation, between the cladding and structural sheathing of a wall or roof
Which of these technologies holds the most promise to reduce energy use and climate change
in an economical way? - ANS Energy conservation
What is the maximum recommended temperature difference between interior surfaces and
interior air in PHIUS Certified buildings? - ANS 7.2 degrees Fahrenheit
Which two of the following materials would you classify as Class I vapor retarders? - ANS
Polyethylene sheeting, Kraft paper laminated with aluminum foil
Which two of the following choices are the most dominant factors affecting the rate of diffusion
through a building assembly? - ANS Vapor pressure, Perm rating of building materials in
the assembly
Which three factors determines the amount of sensible heat transferred by building envelope air
leakage in the standard air-leakage calculation? - ANS Volumetric heat capacity of the air,
Temperature difference between indoor and outdoor air, envelope air-tightness
Which three statements are true about domestic hot water systems in PHIUS Certified
buildings? - ANS Air-source heat pump water heaters will cool the space/room they're
located in, Domestic water heating efficiency in PHIUS+ buildings is typically better than in
conventional buildings, PHIUS+ buildings are required to follow EPA WaterSense distribution
requirements. Therefore, hot water distribution systems may store no more than 0.5 gallons of
water between hot water sources and hot water fixtures.
, Which two of the following statements is true about large multi family passive buildings? - ANS
They have a more favorable surface area to volume ratios than single-family passive houses,
They tend to be more dominated by internal loads compared to the single-family passive houses
Which of the following materials is hydrophobic? - ANS Mineral wool
What is the total R-value you can specify for a 3.5-inch fiberglass batt if the insulation is
specified as R-3/in? - ANS 10.5
What type of HRV uses layers of parallel air channels in its heat exchanger?
Select one:
a. Cross-flow HRV
b. Transverse-flow HRV
c. Enthalpy-wheel HRV
d. Crossover-type HRV
e. Counterflow HRV - ANS E. Counterflow HRV
Which four of the following factors are required to calculate annual heating demand for a PHIUS
Certified building? - ANS U-values of the building enclosure components, Ventilation and
infiltration rates, Psi values and corresponding lengths of thermal bridges, heating degree hours
At saturation, which of the following choices has the same numerical value as the dew point? -
ANS The wet-bulb temperature
Which of the following is a synonym for a Class I vapor retarder? - ANS Vapor barrier
In a residential building, what is the annual limit for source energy use per occupant, according
to the PHIUS CORE 2021 standards? - ANS A variable target, based on the project's
occupant and unit density
Which three of the following building components provide the most protection from rain for a
building? - ANS Flashing, Water-resistive barrier, Rain gutters and downspouts
Which three are true about air-tightness layers in PHIUS Certified buildings? - ANS They
may also serve as vapor retarders, They limit airflow through building assemblies, They must
leak no more than 0.060 CFM50 per square foot of thermal enclosure surface area
Which of the following cities has the highest latent cooling load?
A. Portland, Oregon (Climate zone 4C)
B. Seattle, Washington (Climate Zone 4C)
C. Las Vegas, Nevada (Climate Zone 3B)
D. Boise, Idaho (Climate Zone 6B)
E. Miami, Florida (Climate Zone 1A) - ANS E. Miami, Florida (Climate Zone 1A)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller DocLaura. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.39. You're not tied to anything after your purchase.
