Residential Roofing License
Comprehensive Resource To Help You Ace
2026-2027 Includes Frequently Tested
Questions With ELABORATED 100% Correct
COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. Roof valley - ANSWER the "V" created where two sloping roofs meet
2. Ply - ANSWER a term to denote the number of layers of roofing felt,
veneer in plywood, or layers in built-up materials, in any finished piece of
such material
3. Perlite - ANSWER an amorphous volcanic glass that is typically formed
by the hydration of obsidian. It occurs naturally and greatly expands when
heated sufficiently. It is an industrial mineral and commercial product useful
for its light weight after processing. The expanded material is a brilliant
white. Nicknamed "volcanic popcorn"
4. Open valley - ANSWER a method of valley construction in which the
steep-slope roof-covering materials on both sides are trimmed along each
side of the valley, exposing the metal valley flashing
,5. Valley flashing - ANSWER sheet metal that lays in the "V" area of a roof
valley and enhances open valleys
6. Modified bitumen - ANSWER a bitumen, usually asphalt, with a polymer
added to provide elastomeric properties and a fabric reinforcement to
improve strength. It is an alternative to traditional BUR and more modern
single-ply membranes
7. Lightweight insulating concrete - ANSWER concrete made with or
without aggregate additions to portland cement, water, and air to form a
hardened material that when oven-dried will have a unit weight of 50
pounds per cubic foot or less. Often contains perlite or vermiculite
8. Drip edge - ANSWER a metal flashing or other overhanging component,
or flange, with an outward projecting lower edge, intended to control the
direction of dripping water and help protect underlying building
components. Should be installed along the eaves with felt over flange
9. Closed valley - ANSWER a valley in which shingles from one side of the
valley extend across the valley, which shingles from the other sides are
trimmed back approximately two inches from the valley centerline
10.Asphalt - ANSWER a dark brown to black material containing mainly
bitumens found in a natural state. May be refined to conform to various
roofing grade specifications
, 11.Aggregate - ANSWER a mixture of sand and stone and major
component of concrete
12.Interlayment - ANSWER a layer of roof covering that is used in wood
shake roof systems between each course of wood shakes that provides an
extra layer of water-shedding protection throughout the roof
13.Cant strips - ANSWER a beveled strip used to modify the angle along the
eave edge to change the roof incline for the starter tile or slate
14.Batten - ANSWER a strip of wood set in or over the structural deck, used
to elevate and/or attach a primary roof covering that strengthen the bond
between the slate shingles or tiles and the roof
15.Expansion joints - ANSWER a structural separation between two
building elements that reduces the effects of stresses and movements of a
building, allowing free movement between the elements without damage
to the roofing or waterproofing system. These should be installed on the
same plane and line as the structural joints
16.Vapor drive - ANSWER the movement of vapor across a barrier from
areas of high pressure to areas of low pressure (warm to cold)
17.Leakage - ANSWER unintended entrance or escape of vapor, at a higher
extent
Comprehensive Resource To Help You Ace
2026-2027 Includes Frequently Tested
Questions With ELABORATED 100% Correct
COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. Roof valley - ANSWER the "V" created where two sloping roofs meet
2. Ply - ANSWER a term to denote the number of layers of roofing felt,
veneer in plywood, or layers in built-up materials, in any finished piece of
such material
3. Perlite - ANSWER an amorphous volcanic glass that is typically formed
by the hydration of obsidian. It occurs naturally and greatly expands when
heated sufficiently. It is an industrial mineral and commercial product useful
for its light weight after processing. The expanded material is a brilliant
white. Nicknamed "volcanic popcorn"
4. Open valley - ANSWER a method of valley construction in which the
steep-slope roof-covering materials on both sides are trimmed along each
side of the valley, exposing the metal valley flashing
,5. Valley flashing - ANSWER sheet metal that lays in the "V" area of a roof
valley and enhances open valleys
6. Modified bitumen - ANSWER a bitumen, usually asphalt, with a polymer
added to provide elastomeric properties and a fabric reinforcement to
improve strength. It is an alternative to traditional BUR and more modern
single-ply membranes
7. Lightweight insulating concrete - ANSWER concrete made with or
without aggregate additions to portland cement, water, and air to form a
hardened material that when oven-dried will have a unit weight of 50
pounds per cubic foot or less. Often contains perlite or vermiculite
8. Drip edge - ANSWER a metal flashing or other overhanging component,
or flange, with an outward projecting lower edge, intended to control the
direction of dripping water and help protect underlying building
components. Should be installed along the eaves with felt over flange
9. Closed valley - ANSWER a valley in which shingles from one side of the
valley extend across the valley, which shingles from the other sides are
trimmed back approximately two inches from the valley centerline
10.Asphalt - ANSWER a dark brown to black material containing mainly
bitumens found in a natural state. May be refined to conform to various
roofing grade specifications
, 11.Aggregate - ANSWER a mixture of sand and stone and major
component of concrete
12.Interlayment - ANSWER a layer of roof covering that is used in wood
shake roof systems between each course of wood shakes that provides an
extra layer of water-shedding protection throughout the roof
13.Cant strips - ANSWER a beveled strip used to modify the angle along the
eave edge to change the roof incline for the starter tile or slate
14.Batten - ANSWER a strip of wood set in or over the structural deck, used
to elevate and/or attach a primary roof covering that strengthen the bond
between the slate shingles or tiles and the roof
15.Expansion joints - ANSWER a structural separation between two
building elements that reduces the effects of stresses and movements of a
building, allowing free movement between the elements without damage
to the roofing or waterproofing system. These should be installed on the
same plane and line as the structural joints
16.Vapor drive - ANSWER the movement of vapor across a barrier from
areas of high pressure to areas of low pressure (warm to cold)
17.Leakage - ANSWER unintended entrance or escape of vapor, at a higher
extent
