Roofing/flashing/chimneys

Question 0

What is the result of moisture being trapped underneath or within the layers of a built-up roof?

Answer 0

Blistering

Question 1

Typically,no more than ___ of a wood shingle should be exposed to the weather.

Answer 1

1/3

Question 2

What is the possible result if water ponding on a flat roof?

Answer 2

Reduced life expectancy

Question 3

What is the difference between an open valley and a closed valley flashing?

Answer 3

Closed valley is covered with shingles

Question 4

Clay tile roof should have how much overlap?

Answer 4

3”

Question 5

What is the heaviest roof material per sq.ft .?

Answer 5

Slate /concrete tile

Question 6

Wood shingle / shakes should be spaced how far apart ?

Answer 6

3/8”

Question 7

Flat roofs-what is the most common cause of leaking

Answer 7

Parapet walls

Question 8

What does water ponding cause ?

Answer 8

• shorten life expectancy
• promotes fungi and moss growth
• allows seepage

Question 9

Flat roofs -what is the cause of blisters ?

Answer 9

Air and water trapped between layers

Question 10

Asphalt shingle valley overlap required ?

Answer 10

12” cut or woven

Question 11

Types of insulation used with a flat Roof?

Answer 11

• urethane
• fiberglass
• polystyrene

Question 12

Cap flashing is required over a parapet wall ? T/F

Answer 12

True

Question 13

A 3-tab asphalt shingle can be installed on pitches as low as 2/12, if the roof?

Answer 13

If there are two layers of roofing felt under the shingles

Question 14

What is the most durable roof covering?

Answer 14

Slate

Question 15

When does a build-up roofing need flood coating?

Answer 15

Tar paper is showing

Question 16

Where is the roof most likely to leak when re-roofing?

Answer 16

Penetrations

Question 17

A built-up roof having lap joint every 12” is a :

Answer 17

3ply

Question 18

Wood shakes/shingles are best maintained by :

Answer 18

Applying a quality waterproof drake periodically.

Question 19

Metal roofs are best protected by :

Answer 19

Properly maintained with paint

Question 20

Which of the following is not suited to a roof with a 2/12 pitch?

Answer 20

Asbestos cement shingles

Question 21

What does a drip edge do ?

Answer 21

Protects the parts below it like Te fascia ,siding ECT

Question 22

Skylight curbing must extend above The roof a minimum of ?

Answer 22

4inches

Question 23

What should you do if you come across a snow covered roof?

Answer 23

Note the snow and lack of visibility and access