Roofing Inspection Section#1 Steep Roofing Quiz#9

You should have finished Study Session 8 before starting this study session. This study session discusses wood shingles and shakes.

The estimated completion time is forty-five minutes.

Objectives
At the end of this study session, you should be able to:

• Describe how wood reacts to moisture in three dimensions.
• Explain how this affects wood roofing.
• List the types of wood used for roofing.
• Discuss how shingles and shakes should be installed.

• Question 1

  Needs Grading

  	Is interlay used on shingles or shakes?
  	Selected Answer: On shakes Correct Answer:   Interlay is used on shakes. Response Feedback: [None Given]

• Question 2

  Needs Grading

  	Shakes should be how close together, side-by-side?
  	Selected Answer: 3/8 inch to 5/8 inch Correct Answer:   3/8 to 5/8 inch Response Feedback: [None Given]

• Question 3

  Needs Grading

  	Shingles should be how close together, side-by-side?
  	Selected Answer: 1/4 inch to 3/8 inch Correct Answer:   1/4 to 3/8 inch Response Feedback: [None Given]

• Question 4

  Needs Grading

  	What are the common failure modes for wood shingles and shakes?
  	Selected Answer: 1. Curling 2. Cupping 3. Splitting 4. Rotting 5. Wear-through 6. Burn-through Correct Answer:   Curling Cupping Splitting Rotting Response Feedback: [None Given]

• Question 5

  Needs Grading

  	What factors affect life expectancy? (list nine)
  	Selected Answer: 1. Climate 2. Slope 3. Roof exposure 4. Overhanging trees 5. Sheathing 6. Underlayment 7. Quality of shingles 8. Exposure 9. Installation technique 10. Maintainance Correct Answer: Climate Roof pitch Roof exposure - north, south, east, west Overhanging trees Sheathing and underlayment (affect drying potential) Quality and size of shingles Exposure of shingles Installation technique Maintenance Response Feedback: [None Given]

• Question 6

  Needs Grading

  	What is "interlay"?
  	Selected Answer: The interlay is intended to stop wind-driven snow and rain from going up between the shakes. This is important on shakes because of the rough texture and considerable gaps that are created when one shake overlays another.  Correct Answer: Roofing felts which cover the top four inches of each course and extend up onto the sheathing. Interlay helps prevent wind and snow blowing up into the roof between the shakes Response Feedback: [None Given]

• Question 7

  Needs Grading

  	What is the life expectancy of cedar shingles and shakes?
  	Selected Answer: 20 to 40 years Correct Answer:   20 to 40 years Response Feedback: [None Given]

• Question 8

  Needs Grading

  	What wood is most commonly used for roofing in North America?
  	Selected Answer: cedar Correct Answer:   Cedar Response Feedback: [None Given]

• Question 9

  0 out of 0 points

  	Wood expands with moisture, and shrinks as it dries, in 3 directions. Which is a distant third in terms of the direction of movement?
  	Selected Answer:   Longitudinally Answers: Radially Tangentially   Longitudinally

• Question 10

  0 out of 0 points

  	Wood expands with moisture, and shrinks as it dries, in 3 directions. Which of these directions of movement is greatest?
  	Selected Answer:   Tangentially Answers: Radially   Tangentially Longitudinally

• Question 11

  0 out of 0 points

  	Wood expands with moisture, and shrinks as it dries, in 3 directions. Which of these is a close second, in terms of the direction of movement?
  	Selected Answer:   Radially Answers:   Radially Tangentially Longitudinally