2022 NRCA Architectural Metal Flashing, Condensation and Air Leakage Control

Question 1

1. Roof systems designed for low-slope applications are used when roof slopes are at or less than _____.

A. 1:12
B. 2:12
C. 3:12
D. 4:12

Answer 1

1. C 17 and 217

Question 2

2. has a substantially higher coefficient of expansion than any other roofing metal except zinc.

A. Copper
B. Aluminum
C. Lead
D. Zinc

Answer 2

2. B 20

Question 3

3. The use of __________ in roof system applications is limited because of the vulnerability of cut edges.

A. Aluminized steel
B. Copper
C. Stainless steel
D. Galvanized steel

Answer 3

3. A 21

Question 4

4. is not one of the more common metal types used for copings.
   A. Copper
   B. Galvalume
   C. Zinc
   D. Extruded aluminum

Answer 4

4. C 55

Question 5

5. NRCA recommends valley metal for use with wood shakes or shingles be a minimum of __________ inches wide.
   A. 10
   B. 12
   C. 14
   D. 24

Answer 5

5. D 110

Question 6

6. Weatherproofing is the ability of a membrane or roof covering to prevent the passage of water with a limited amount of __________ pressure.
   A. Hydrokenesis
   B. Hydrostatic
   C. Non-hyrdostatic
   D. Hydropulsive

Answer 6

6. B 358

Question 7

7. The thermal conductance of asphalt shingles is __________ Btu/h*ft2F.
   A. 1.06
   B. 2.27
   C. 3.00
   D. 4.76

Answer 7

7. B 284

Question 8

8. A vapor retarder should be used when the coldest month is below 40⁰F and the expected interior winter relative humidity is __________ or greater.
   A. 45%
   B. 55%
   C. 65%
   D. 75%

Answer 8

8. A 221

Question 9

9. All of the following metals are solderable except for __________.
   A. Copper
   B. Lead
   C. Stainless Steel
   D. Galvalume

Answer 9

9. D 51

Question 10

10. The minimum metal thickness of stainless-steel drip edge metal to be used with a __________ roofing system in severe weather regions is 24-gauge prefinished galvanized steel.
    A. Metal shingle
    B. Asphalt shingle
    C. Clay and concrete tile
    D. Wood shake and wood shingle

Answer 10

10. C 99

Question 11

11. Moisture in the form of water vapor can enter into buildings via __________ through the building envelope materials.
    A. Condensation
    B. Permeability
    C. Conductance
    D. Overflow drainage

Answer 11

11. B 207

Question 12

12. __________ provide a hidden method for the anchorage of sheet metal components.
    A. Copings
    B. Cleats
    C. Clips
    D. Fasteners

Answer 12

12. B 44

Question 13

13. Which of the following statements is not true when describing a scupper?
    A. They can be the primary or secondary source of drainage
    B. They are typically installed at roof edges
    C. They may be used to direct drainage from one roof to another
    D. They should be a minimum of 1/2” thick

Answer 13

13. D 88

Question 14

14. Many low-slope roof assemblies are __________.
    A. Self-drying
    B. Water shedding
    C. Undesirable in humid climates
    D. Always installed with a vapor barrier

Answer 14

14. A 220

Question 15

15. When selecting vapor retarder materials, __________ should be considered.
    A. Insulation type
    B. Roofing system
    C. Type of adhesives used
    D. The winter relative humidity

Answer 15

15. A 233

Question 16

16. The design winter dry bulb temperature for West Palm Beach, Florida is __________.
    A. 0°F
    B. 44.5°F
    C. 32°F
    D. 78°F

Answer 16

16. B 288

Question 17

17. When metal counterflashing is used at wall, the __________.
    A. Reglet is inset into a raggle
    B. Raggle is set in the reglet
    C. Raggle only is used
    D. Reglet only is used

Answer 17

17. A 69 and 115

Question 18

18. Plastic sheet vapor retarder perm ratings generally range from __________ to __________ perms.
    A. .5 to .6
    B. .05 to .70
    C. .08 to .10
    D. .12 to .14

Answer 18

18. B 233

Question 19

19. Flashing on the front, or downslope, side of a dormer or chimney is called __________ flashing.
    A. Step
    B. Apron
    C. Counter
    D. Base

Answer 19

19. B 110

Question 20

20. The use of a vapor retarder is recommended when temperatures are expected to be below __________ for the average temperature during the coldest month.
    A. 32°F
    B. 40°C
    C. 40°F
    D. 32°C

Answer 20

20. C 221

Question 21

21. __________ is not classified as an insulation board.
    A. Fiberglass
    B. Vermiculite
    C. Cellular glass
    D. Perlite

Answer 21

21. B 357, 324, 333, and 343

Question 22

22. Carbon steel, __________, and electroplated galvanized steel fasteners and connectors should not be used in contact with treated wood.

A. Zinc
B. Aluminum
C. Copper
D. Terne

Answer 22

22. B 121

Question 23

23. A Class II vapor retarder has a permeance of __________.
    A. 1.0 perm or less and greater than 0.1 perm
    B. .1 perm or less
    C. 1.0 perm or less and greater than 1.0 perm
    D. Greater than 1.0 perm

Answer 23

23. A 213

Question 24

24. Asphalt shingles have an R-value of __________.
    A. .17
    B. .06
    C. .78
    D. .44

Answer 24

24. D 242

Question 25

25. __________ fasteners are recommended for use on treated wood for maximum corrosion resistance. A. Copper B. Electroplated galvanized steel C. Aluminum D. Type 304 or 316 stainless steel

Answer 25

25. D 46

Question 26

26. Miami-Dade county in Florida is located in US Climate zone __________. A. 1A B. 2A C. 3A D. 4A

Answer 26

26. A 274

Question 27

27. The time rate of vapor transmission through a material is measured in __________. A. Bulk ratings B. Perms C. Degrees D. Grains

Answer 27

27. B 213

Question 28

28. A gutter bracket made of galvanized steel should measure __________. A. 1/8 inch by 1 inch B. 3/16 inches by 1 inch C. 3/8 inch by 1 inch D. 1/4 inch by 1 1/2 inches

Answer 28

28. A 92

Question 29

29. End-lap joining of A-type edge metal can be accomplished with __________. A. Cover plates B. Overlap joint C. Membrane-coated metal joint D. All of the above

Answer 29

29. D 64

Question 30

30. The outside dimension of the outlet tube is typically __________ of an inch less than the inside dimension of the downspout. A. 1/8 B. 3/8 C. 5/8 D. ½

Answer 30

30. A 95