Roofing Flashcards
Clay and slate shingles can deteriorate because of these two things?
Frost damage and deterioration/failure of the fasteners.
Alligatoring of a roof covering is not this type of issue?
Cosmetic
What roof slope can most asphalt shingles be used on using standard application methods?
4:12 to 21:12,
T/F Debris buildup in the gutters should not be reported.
False
T/F Wide-selvage roofing and two-ply roll roofing are not the same thing.
False. They are.
Moss or mildew on shakes/shingles is evidence of what?
Poor maintenance
What are the layers of a built-up roof called?
Plys.
Clay roofing materials are commonly curved whereas clay siding material is typically?
Flat
The connection piece between a manufactured chimney flue and the roof is called?
A Thimble
A ridge with a step/bow in it may indicate what?
Structural problems.
What is the inspector required to check all downspouts for?
Blockage.
Gable vents require a ratio of how many square feet of vent to square feet of attic floor area?
1:150
If the roof tiles are asbestos-cement, they should be?
Noted
What is the required gap between a manufactured chimney and combustibles?
2-inches
How wide is standard roll roofing?
36-inches
What’s the minimum separation requirements for wood shakes?
3/8-inch to 5/8-inch.
All asphalt shingle roofing requires?
An underlayment
These are caused by poor venting, poor insulation and lack of air sealing?
Ice dams
Asphalt shingles that have small dimples or circular depressions may have been damaged by these?
Hailstones
Darker patches on a shake or shingle roof usually indicates what?
Rot or over saturation
A Tar and Gravel roof is also known as by this name?
A built-up roof
When inspecting guttering, does the presence of leaf guards need to be reported on?
No
The flashing installed on the lowest face of a chimney is called?
Apron flashing
What does a chimney cap protect?
The structure
What does the rain cap protects?
The inside of the flue.
It is important to press on clay or slate shingles with your hand to check for?
Movement
Are clay and concrete tiles hard to tell apart?
Yes
What should the slope on gutters be?
1/16-inch per foot or 1/4-inch per 5 to 10 feet.
Which roof valley cannot be seen?
Closed
How much taller should a chimney stack be to any roof ridge with in 10?
2-feet taller
Wood Shakes require this between courses?
Inter-layment
Do tree limbs overhanging a home’s roof need to be reported by the inspector?
Yes
Should an aluminum vent be used with a steel roof?
No
Not all chimneys are required to have this?
A spark arrestor.
Metal tile roofs are required to have an under-layment
True
When were asbestos-cement one of the most common types of roof shingles?
Between the 1930 and 1960s,
Are concrete and clay tiles installed the same way?
Yes
Which soffit is attached directly to the underside of the rafter tails?
An enclosed soffit
Saddle-back or swayback is caused by what?
A deflection of the ridge beam
Should there be exposed nails on metal tile roofs?
No
What is required on all manufactured chimneys?
A rain cap or deflector
A flat roof will usually have this type of venting system installed.
A passive
What is the usual cause of blisters in built-up roofing?
Water or air expanding beneath the covering.
Which flashing overlaps or covers step flashing?
Counter flashing
Most jurisdictions allow a maximum of how many roofing layers?
Two
A Kickout flashing should be installed where the bottom of a roof meets what?
A wall.
What distance should separate the siding from a roof surface?
1 to 2 inches
You can tell the lowest quality of slate tile by the what?
Rib-boning in it
A standard step-flashing cannot be used against a wall on many tile roofs, so what should be used?
Pan flashing
De-lamination of the roof sheathing may cause this?
Depression between rafters.
What is the minimum height of a traditional masonry chimney?
3 feet
What is the minimum width of valley flashing made of metal?
24 inches
What’s the average service life of standard 3-tab asphalt shingles?
20 years
Are home inspectors required to measure the amount of gutter slope?
No
Efflorescence on the surface of a clay shingle may indicate that it has excessive porosity, which is caused during manufacture by being what?
Under-firing
What fasteners are recommended with tile roofs?
Copper or stainless steel
How should roofs made of sheet copper be jointed?
With standing seams or solder
Counter flashing prevents water from entering which flashing.?
Step
Are the requirements regarding minimum distances to adjoining structures the same for manufactured and traditional chimneys.
Yes
Most metal roof tiles are made of this?
Steel.
Rusty steel gutters need to be?
Reported
Metal roof covering with its “ribs” down is called?
A standing seam.
Decorative molding applied to the fascia is called?
Acornice
Solid tile roofs should be installed over what type of sheathing?
Solid sheathing
The enclosure at the eave edge of a traditional barrel-style roof is called?
A bird stop
what’s the ratio of square vent to square floor area for ridge and soffit vents.
1 to 300
A gap between a wall and the soffit may indicate what?
Rafter sag or spread.
A square inch of downspout is capable of discharging drainage for how many square feet of roof surface?
100-feet
Downspouts should terminate how far from the foundation?
5 - foot minimum
Internal drainage systems on flat roofs require one or two of these for them to work?
Low points
Ceiling joist also act as what?
Rafter ties
Collar ties are located where in the roof framing?
the upper third.
Purlins should not rest on ceiling joust are what?
Defective
If purlins do not rest on a bearing wall, what should they rest on?
A strong Back
If you see trusses fastened together with plywood gussets instead of rings or gan-gnails, what should you do?
Recommend evaluation by a structural engineer.
Water still on the roof after this time period is an indication that there is a ponding problem?
48 hours.
A cant strip prevents the roof membrane from cracking at a change in this?
Direction
Which roofing material with the shortest life expectancy?
Roll roofing
Ice dams typically form on roofs with a low slopes and this?
Wide overhangs
A four-year-old asphalt shingle roof that appears well-insulated, with an attic that is properly ventilated, but having roughly 25% of the shingles showing irregular cracks in the surface should be reported as possibly having a shortened life expectancy due to this?
Manufacturing defects
There may be leakage at a chimney protruding through roll roofing valley flashing because the chimney will do what?
Obstruct proper drainage.
