Test 2 Illinois Roofing Questions with
All Correct Answers 2025-2026
Updated.
Which statement most accurately describes structural metal panel roofing assemblies? - Answer
Underlayment is recommended if a structural metal panel is used directly over a solid substrate.
What is the purpose of metallic coating on steel that is used in a low slope roofing system? -
Answer To decrease the rate of oxidation
How does oil canning occur in a low slope metal panel roofing system? - Answer From
distortions in the flatness of the metal
Which of the following is most accurate about SPF? - Answer SPF should be applied when
the deck temperature is 50 degrees or higher.
What damage can result if SPF roof systems are applied in misty or foggy conditions? - Answer
Carbon dioxide can cause blistering of the roof membrane
Which of these most accurately describes waterproofing? - Answer Treating s surface to
prevent passage of water under hydrostatic pressure.
Which of these most accurately describes damp proofing methods? - Answer It is designed
to resist capillary action
Which of these is most commonly used for copings in a low slope metal roofing system? -
Answer Metal caps to weatherproof the top of a parapet wall.
Which statement most accurately describes flashings? - Answer Dissimilar metals that can
have a galvanic reaction should be isolated.
What kind of flashing would you use on the downslope of a chimney where you're installing a
tile roof? - Answer Apron flashing
All Correct Answers 2025-2026
Updated.
Which statement most accurately describes structural metal panel roofing assemblies? - Answer
Underlayment is recommended if a structural metal panel is used directly over a solid substrate.
What is the purpose of metallic coating on steel that is used in a low slope roofing system? -
Answer To decrease the rate of oxidation
How does oil canning occur in a low slope metal panel roofing system? - Answer From
distortions in the flatness of the metal
Which of the following is most accurate about SPF? - Answer SPF should be applied when
the deck temperature is 50 degrees or higher.
What damage can result if SPF roof systems are applied in misty or foggy conditions? - Answer
Carbon dioxide can cause blistering of the roof membrane
Which of these most accurately describes waterproofing? - Answer Treating s surface to
prevent passage of water under hydrostatic pressure.
Which of these most accurately describes damp proofing methods? - Answer It is designed
to resist capillary action
Which of these is most commonly used for copings in a low slope metal roofing system? -
Answer Metal caps to weatherproof the top of a parapet wall.
Which statement most accurately describes flashings? - Answer Dissimilar metals that can
have a galvanic reaction should be isolated.
What kind of flashing would you use on the downslope of a chimney where you're installing a
tile roof? - Answer Apron flashing
