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20 Cards in this Set
- Front
- Back
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? |
Roof deck.
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(401) How many felt layers does a 10-year built-up roof have?
|
3
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(401) On what roof types do you usually use coal-tar pitch and asphalt bitumens?
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Coal-tar is used on dead level roofs; asphalt is used on roofs with more slope.
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|
(401) What reliable test can you do to tell if a built-up roof is made from asphalt or coal tar?
|
Solvent test.
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|
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? |
Flashing.
|
|
(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? |
Construction joint.
|
|
(401) What would you do to make a major correction when installing felt on a built-up roof?
|
Cut off the felt and start over
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|
(401) Which flashing would you install around anything that penetrates or protrudes from the roof
surface? |
Subflashing
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|
(401) What is the last action that you take to repair separated base flashing before bending the
counter flashing back into place? |
Coat it with flashing cement
|
|
Which roof covering system includes vulcanized thermosets?
|
Single-ply.
|
|
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? |
Roof deck.
|
|
(401) How many felt layers does a 10-year built-up roof have?
|
3
|
|
(401) On what roof types do you usually use coal-tar pitch and asphalt bitumens?
|
Coal-tar is used on dead level roofs; asphalt is used on roofs with more slope.
|
|
(401) What reliable test can you do to tell if a built-up roof is made from asphalt or coal tar?
|
Solvent test.
|
|
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? |
Flashing.
|
|
(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? |
Construction joint.
|
|
(401) What would you do to make a major correction when installing felt on a built-up roof?
|
Cut off the felt and start over
|
|
(401) Which flashing would you install around anything that penetrates or protrudes from the roof
surface? |
Subflashing
|
|
(401) What is the last action that you take to repair separated base flashing before bending the
counter flashing back into place? |
Coat it with flashing cement
|
|
Which roof covering system includes vulcanized thermosets?
|
Single-ply.
|