2018 Building Thermal Design

Question 1

Aluminium foil insulation has

a.
higher R-value for the downward radiative heat than the upward radiative heat
b.
the same R-value for radiative heat from all different directions
c.
lower R-value for the downward radiative heat than the upward radiative heat
d.
the same R-value for both downward and upward radiative heat

Answer 1

Higher R-value for the downward radiative heat than the upward radiative heat

Question 2

Double-glazed windows
a.
have higher R-value than single-glazed windows but windows are commonly a weak part of building envelope for thermal resistance
b.
have higher R-value than single-glazed windows, insulated walls and roofs
c.
have lower R-value than single-glazed windows, insulated walls and roofs
d.
have higher R-value than single-glazed, so more wall areas of an Auckland house can be covered by double-glazed windows

Answer 2

Have lower R-value than single-glazed windows, insulated walls and roofs

Question 3

Which of the following passive controls can be applied to improve indoor thermal comfort for both over-heated and under-heated conditions?

a.
Mass effect
b.
passive solar heating
c.
mass effect with night ventilation
d.
mass effect and passive solar heating

Answer 3

Mass Effect