Cdc Set 2 Vol 3

Front 1

401) What built-up roof member provides the hard surface for the entire roof and must be strong
enough to support the roofing felts, asphalt or coal tar pitch, and gravel that covers it?

Back 1

Roof deck.

Front 2

(401) How many felt layers does a 10-year built-up roof have?

Back 2

3

Front 3

(401) On what roof types do you usually use coal-tar pitch and asphalt bitumens?

Back 3

Coal-tar is used on dead level roofs; asphalt is used on roofs with more slope.

Front 4

(401) What reliable test can you do to tell if a built-up roof is made from asphalt or coal tar?

Back 4

Solvent test.

Front 5

401) What component would you install that would provide a continuous watertight connection
between the roofing membrane and other structural parts, and between roof sections?

Back 5

Flashing.

Front 6

(401) What is a structural separation on a built-up roof that is designed to minimize building stress
and movement and to control splitting or ridging in the roof membrane?

Back 6

Construction joint.

Front 7

(401) What would you do to make a major correction when installing felt on a built-up roof?

Back 7

Cut off the felt and start over

Front 8

(401) Which flashing would you install around anything that penetrates or protrudes from the roof
surface?

Back 8

Subflashing

Front 9

(401) What is the last action that you take to repair separated base flashing before bending the
counter flashing back into place?

Back 9

Coat it with flashing cement

Front 10

Which roof covering system includes vulcanized thermosets?

Back 10

Single-ply.

Front 11

401) What built-up roof member provides the hard surface for the entire roof and must be strong
enough to support the roofing felts, asphalt or coal tar pitch, and gravel that covers it?

Back 11

Roof deck.

Front 12

(401) How many felt layers does a 10-year built-up roof have?

Back 12

3

Front 13

(401) On what roof types do you usually use coal-tar pitch and asphalt bitumens?

Back 13

Coal-tar is used on dead level roofs; asphalt is used on roofs with more slope.

Front 14

(401) What reliable test can you do to tell if a built-up roof is made from asphalt or coal tar?

Back 14

Solvent test.

Front 15

401) What component would you install that would provide a continuous watertight connection
between the roofing membrane and other structural parts, and between roof sections?

Back 15

Flashing.

Front 16

(401) What is a structural separation on a built-up roof that is designed to minimize building stress
and movement and to control splitting or ridging in the roof membrane?

Back 16

Construction joint.

Front 17

(401) What would you do to make a major correction when installing felt on a built-up roof?

Back 17

Cut off the felt and start over

Front 18

(401) Which flashing would you install around anything that penetrates or protrudes from the roof
surface?

Back 18

Subflashing

Front 19

(401) What is the last action that you take to repair separated base flashing before bending the
counter flashing back into place?

Back 19

Coat it with flashing cement

Front 20

Which roof covering system includes vulcanized thermosets?

Back 20

Single-ply.