Answers are provided at the bottom of this column; don’t peek until you’ve finished the quiz.
1. True or false: In freezing climates, a drainback solar hot water system circulates ordinary water (without any antifreeze) through its solar collectors.
2. Which of the following statements best describes the “cold OSB problem”?
(a) OSB sheathing is more at risk when stud cavities are filled with thick insulation than thin insulation.
(b) When OSB gets very cold, the adhesive that binds the wood flakes may fail.
(c) OSB can fail if it is covered on the exterior with a thick layer of rigid foam.
(d) Researchers have not succeeded in developing an OSB sleeping bag.
3. The International Residential Code includes a table listing prescriptive requirements for insulation and windows. The column labeled “fenestration U-factor” shows:
(a) Minimum U-factors for windows.
(b) Maximum U-factors for windows.
(c) The confusion rate for readers with low Understanding Factors (i.e., low U-factors) who are forced to decipher code documents.
4. Which of these statements is true?
(a) No roof assembly can dry to the exterior.
(b) All roof assemblies can dry to the exterior.
(c) Some roof assemblies can dry to the exterior.
(d) Roofs in Seattle are always wet.
5. Which of these statements is most likely to be true for a certified Passivhaus?
(a) The house has Zehnder windows, a Siga heat-recovery ventilator, and Intus tape.
(b) The house has Intus windows, a Zehnder heat-recovery ventilator, and Siga tape.
(c) The house has Siga windows, an Intus heat-recovery ventilator, and Zehnder tape.
(d) The windows cost too much.
6. Compared to exhaust-only ventilation systems, heat-recovery ventilation (HRV) systems have several advantages. Which…