Roof Inspection Procedures

Question 1

Where should a roof inspection start?

Answer 1

From the ground, documenting visible features such as attic ventilation (e.g., gable and soffit vents).

Question 2

What should be checked before setting up a ladder for a roof inspection?

Answer 2

Look for a flat surface to set the ladder.
Check for wasp nests.
Inspect for overhead power lines.

Question 3

What safety measure should you take when setting up a ladder?

Answer 3

Tie off the ladder with a bungee cord to secure it.

Question 4

What is the purpose of checking the gutter line during a roof inspection?

Answer 4

To check for the presence of drip edge flashing or if the gutter is serving as drip flashing, and to inspect underlayment and shingle bonding.

Question 5

What attic ventilation features should be documented during a roof inspection?

Answer 5

Gable vents, soffit vents, and roof vents.

Question 6

What should be included in roof overview photos?

Answer 6

General roof condition.
Scenic views if available (e.g., mountain view).
Close-ups of shingles and specific areas like roof vents or valleys.

Question 7

What are common issues to look for during a roof inspection?

Answer 7

Granular loss on shingles.
Exposed nails (especially at the ridge line).
Proper sealing of shingles, particularly in valleys.

Question 8

Why is it important to check the valleys of the roof?

Answer 8

To ensure shingles are properly sealed against cross-wash, preventing water from washing under the shingles.

Question 9

How can granular loss on shingles indicate roof condition?

Answer 9

Granular loss, especially on ridge shingles, can show damage from hail or weathering.

Question 10

What action should be taken if exposed nails are found during a roof inspection?

Answer 10

Ensure they are properly sealed to prevent water intrusion.

Question 11

What additional roof feature should always be documented besides the drip edge flashing?

Answer 11

Any roof penetrations, such as HVAC vents, plumbing weather boots, and skylights, ensuring they are properly installed and sealed.

Question 12

What are common issues to look for with HVAC vent flashing?

Answer 12

Flashing or nails popping up.
Cracks in the bedding that may allow water infiltration.
Gaps that need sealing.

Question 13

What should be checked for skylights during a roof inspection?

Answer 13

Proper flashing installation (headwall, counter, and apron flashings).
Flashing curling or lifting at corners.
Condensation or fogging between glass panes, indicating failed seals.
Check for evidence of interior moisture stains with a moisture meter if inspecting indoors.

Question 14

What issue is often found with flashing on additions to older roofs?

Answer 14

Improperly installed metal flashing, such as tar paper used over flashing or flashing installed over shingles instead of as counter-flashing.

Question 15

What is a critical issue with chimney flashing to look for?

Answer 15

Missing or improperly installed counter-flashing that should be inserted into mortar joints.
Missing kickout flashing at the bottom, which prevents water from running down the chimney.
Gaps in mortar or improper materials (e.g., wood caulked to the chimney).

Question 16

Why is kickout flashing important?

Answer 16

It diverts water away from the wall or chimney at the gutter line, preventing water damage to the siding or structure.

Question 17

How should plumbing weather boots be inspected?

Answer 17

Ensure the boots are intact and not cracked.
Verify all nails are sealed properly.
Look for excessive tar use, which may indicate previous leaks.

Question 18

What is a common recommendation for improperly installed chimney flashing?

Answer 18

Annual sealing until proper flashing can be installed by a qualified roofer.

Question 19

What are the signs of a roofing section nearing the end of its lifespan?

Answer 19

Granule loss.
Cracking of materials, especially in valleys or rolled asphalt roofing.

Question 20

Why is it important to trim tree branches near a roof?

Answer 20

To prevent abrasion against shingles and fascia, which can cause wear and damage.

Question 21

What should be done if a nail pop is discovered during a roof inspection?

Answer 21

Secure the nail and seal it to prevent it from poking through the shingle or allowing water entry.

Question 22

What is a potential issue with mortar joints on chimneys, and what should be done?

Answer 22

Loose or missing mortar allows water penetration. Recommend tuck-pointing and sealing the joints.

Question 23

Where should counter flashing be installed in relation to a chimney? and Why?

Answer 23

Counter flashing should be installed into the mortar joints of the chimney.

Why?
Prevents water infiltration by creating a watertight seal.
Enhances durability and helps prevent the flashing from coming loose.
Ensures a clean, professional look by embedding the flashing flush with the chimney.

Question 24

Where should kickout flashing be installed?

Answer 24

Kickout flashing should be installed at the junction where the roof meets a chimney or wall to direct water away from the structure.

Position: At the bottom corner of the roof where it intersects the chimney or wall.
Placement:
Install overlapping the step flashing at the roof-to-wall junction.
Angled downward to direct water into the gutter or away from the structure.
Purpose:

Prevents water damage by stopping water from running behind the wall or chimney.
Guides water into gutters or away from the structure to prevent moisture issues.

Question 25

How far back should bushes and trees be from the roof?

Answer 25

Bushes and trees should be kept at least 3 to 5 feet away from the roof.

Recommended Distances:

Small trees or bushes: At least 3 feet away from the roof.
Medium to large trees: Ideally 5 feet or more, depending on the tree size.

Question 26

What does condensation in skylights indicate, and does it mean they need to be sealed?

Answer 26

Yes, condensation in skylights may indicate they need to be properly sealed or ventilated.

Causes of Condensation:
Poor Sealing: Gaps or deteriorating sealant allow humid air to condense on the skylight glass.
Lack of Ventilation: Insufficient airflow causes warm, moist air to condense on cooler skylight surfaces.
Temperature Differences: High indoor humidity and cooler outdoor temperatures lead to condensation.
Steps to Address Condensation:

Check the Seal: Inspect and reseal if necessary to prevent humid air from entering.
Improve Ventilation: Ensure adequate airflow around the skylight (use vents, exhaust fans).
Use Dehumidifiers: Control moisture levels in areas with high humidity.
Check Insulation: Ensure the skylight is well-insulated to reduce condensation from temperature differences.