The estimated completion time is one hour.
Objectives
At the end of this study session, you should be able to:
At the end of this study session, you should be able to:
- Describe how these flashing details should be done.
- Describe what problems are common to these flashing details.
- Explain the causes of the problems.
- Explain how to recognize the problems.
Question 1
Common hip and ridge conditions include:Selected Answer: 1. Loose, misaligned or missing hip and ridge pieces2. Wood hip and ridge pieces coming apart3. Rust on metal hip and ridges4. Installation problems, such as exposed fasteners without plastic cement or caulking, excessive exposure, poor fastening, prefabricated wood, hip and ridge pieces not installed with alternating overlaps.Correct Answer: 
- Loose, misaligned or missing pieces - Separation of wood hips and ridges - Rust - Installation problemsResponse Feedback: [None Given] Question 2
Common roof/sidewall flashing materials include:Selected Answer: 1. Galvanized steel2. Aluminum3. Galvalume4. Lead5. Copper6. Lead-coated copperCorrect Answer: - Galvanized steel - Aluminum - Galvalume - Lead - Copper - Lead-coated copperResponse Feedback: [None Given] Question 3
Exposed nail heads through the metal flashing into the roof may result inSelected Answer: water penetration pointCorrect Answer: LeakageResponse Feedback: [None Given] Question 4
Hip and ridge flashing materials include:Selected Answer: 1. Roofing felts2. Ice and Water Shield3. Metal4. Mortar5. Asphalt cementCorrect Answer: - Roofing felts - Ice and water shield - Metal - Mortar - Asphalt cement - Shingles - Roofing tilesResponse Feedback: [None Given] Question 5
Mortar problems on tile roofs include:Selected Answer: 1. Missing2. Cracked3. ShrinkingCorrect Answer: Missing, cracked or shrinking mortarResponse Feedback: [None Given] Question 6
On wood hips and ridges, how should the overlapping sides be laid?Selected Answer: Staples are used in pre-manufactured cap flashing to hold the two sides together until they are installed. Nails or staples are used to secure the cap flashing to the roof.Correct Answer: They should be laid with alternating overlaps.Response Feedback: [None Given] Question 7
Roof/sidewall flashing is sometimes improperly installed. Give three examples of typical installation defects.Selected Answer: 1. No step or counter flashing2. Step flashing not tucked under shingles3. Flashings that are too short or too narrow4. Siding that is not cut back5. Inadequate overlap of adjacent pieces of step or counter flashing6. Inappropriate or missing troughs or pans for curved tiles7. Counter flashing not let into mortar joints on masonary wallsCorrect Answer: - Missing step or counterflashings - Step flashings are not tucked under shingles - Flashings are too short or too narrow - Siding is not cut back - Inadequate overlap of adjacent pieces of flashing - Inappropriate or missing troughs or pans - Counterflashings not let into mortar jointsResponse Feedback: [None Given] Question 8
Roof/sidewall flashings are similar to what flashing we discussed earlier?Selected Answer: counter flashingCorrect Answer: Flashings at the sides of chimneysResponse Feedback: [None Given] Question 9
Roofs intersecting walls above need flashings similar to ____________ which were discussed earlier.Selected Answer: base flashingCorrect Answer: bottom chimney flashingsResponse Feedback: [None Given] Question 10
Some ridge flashing systems have a second function, not related to keeping the roof watertight. What is it?Selected Answer: Ridge venting systemCorrect Answer: Ventilation of the roof spaceResponse Feedback: [None Given] Question 11
Tar on metal flashings may be bad because:Selected Answer: it may hold water against the metal and actually accelerate the corrosion of the flashingCorrect Answer: The tar may hold water against the metal and accelerate corrosion.Response Feedback: [None Given] Question 12
The primary implication of sidewall flashing problems is:Selected Answer: leakageCorrect Answer: LeakageResponse Feedback: [None Given] Question 13
When roof/sidewall flashing is installed, often the siding material can be used as the counter flashing. Why is it considered good practice to keep the siding slightly away from the roof surface? What is the recommended clearance?Selected Answer: 1. Make it easier to paint the siding2. To keep wood siding materials from soaking up moisture and rotting.Correct Answer: To allow for ease of painting and to keep the end grain of wood siding materials from absorbing water and rotting. The recommended clearance is as much as two inches.Response Feedback: [None Given] Question 14
Which metal flashing material is not compatible with masonry mortar according to some authorities?Selected Answer: AluminumCorrect Answer: AluminumResponse Feedback: [None Given] Question 15
Fasteners on hips and ridges should be mostly:Selected Answer: concealedAnswers: Response Feedback: Good workQuestion 16
Nailing flashings to both the roof and the wall isSelected Answer: worse because it doesn't allow for differential movement of the wall and roof.Answers: Response Feedback: Good workQuestion 17
Step flashings should be nailed to:Selected Answer: either, but usually the roofAnswers: Response Feedback: Good workQuestion 18
Top quality flashings at roofs meeting a masonry wall above are two piece flashings. Most are ______ piece(s) on homes.Selected Answer: OneAnswers: Question 19
Where a steep roof meets a masonry wall at the side, counter flashing should be used. Answer the following question with true or false. The counter flashing should be nailed or bolted securely to the face of the brick wall and the joint filled with caulking.Selected Answer: 
TrueAnswers: True FalseResponse Feedback: That's not correct
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