Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

GAF Training > Commercial Roof Types > Flashcards

Commercial Roof Types Flashcards

1
Q

What are the common components of a commercial roof?

A
  • Roof accessories
  • Single ply membrane
  • Roof deck
  • Insulation
  • Fasteners
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the characteristics and benefits of Metal Decks, Wood Decks, and Lightweight Insulating Concrete Decks (LWIC)?

A
  • Metal Decks: Corrugated panels, various thicknesses & spans, cost-effective, good wind/fire/seismic resistance
  • Wood Decks: Made of plywood or OSB, common in western U.S., excellent seismic resistance, fair to poor fire/wind/foot traffic resistance
  • LWIC: Non-structural, low-density, good fire/wind/foot traffic resistance, often contain EPS insulation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the characteristics and benefits of Structural Concrete Decks and Poured Gypsum Decks?

A
  • Structural Concrete: Integral to structure, designed for heavy loads, excellent foot traffic/fire/wind resistance, expensive
  • Poured Gypsum: Lightweight, minimal expansion/contraction, reinforced with steel mesh, popular during WWII, inexpensive
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the characteristics and benefits of Tectum Decks, Insulation Boards, and Cover Boards?

A
  • Tectum: Composite strand board, sound-absorbing, issues with water damage, needs special fasteners
  • Insulation Boards: ISO-Polyisocyanurate, increase R-value, improve smoothness of top membrane
  • Cover Boards: Perlite, serve as separators for re-cover jobs, Class-A fire rating, puncture resistance
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the three types of Single-Ply Systems and their benefits?

A
  • EPDM: Long history, installs quickly, economical, good heat resistance
  • PVC: Good on punctures, high flexibility, strong seams, highly reflective, chemical-resistant
  • TPO: Economical, over 50% market share, flexible, fungal- and mold-resistant, high reflectivity, Energy Star-rated
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the cons of EPDM, PVC, and TPO?

A
  • EPDM: Poor seam integrity, human error, low strength, dark colors less energy-efficient, low puncture resistance, not chemical- or petroleum-resistant, can’t use induction welding
  • PVC: Plasticizers migrate, becomes brittle, mold growth, more expensive
  • TPO: New technology, changing formulations, less flexibility, reduced chemical/grease resistance
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Why is TPO considered the roofing of choice?

A
  • TPO use has grown by over 10% since 2013
  • Low installation cost
  • Popularity of reflective membranes
  • Energy-efficient roofing systems
  • Contains no asphalt
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the six TPO attachment methods?

A
  • Mechanically-Attached Smooth with Drill-Tec Fasteners
  • Fully-Adhered Smooth
  • Fully-Adhered Fleece with WB181 Wet Lay-in
  • Adhered Fleece with Low-Rise Foam
  • Fully-Adhered Fleece with GAF 2-Part Roofing Adhesive
  • GAF RhinoBond System
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are TPO accessories, and why are they important?

A
  • Identifies numerous accessories for commercial roofs
  • Understanding accessories and their application is integral to roofing
  • Factory-made accessories provide consistent detail and save on labor compared to field-fabricated accessories
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is seam strength, and why is it important for roofing?

A
  • Seam: Where two sheets of membrane connect and are fused together
  • Seam strength: Amount of force needed to pull the seam apart
  • Strong seams are dependent on the quality of the weld
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Match the description with the appropriate TPO Accessory: “Structural foundation for EverGuard pourable sealant”

A

Pourable sealer pocket

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Match the description with the appropriate TPO Accessory: “TPO can be heat welded to this for a strong, secure installation”

A

Scupper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Match the description with the appropriate TPO Accessory: “Flange for direct hot-air welding of TPO or PVC roof membranes”

A

Coated speedtite drain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Match the description with the appropriate TPO Accessory: “For use in flashing outside corners of base and curb flashings”

A

Fluted corner

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the two systems in GAF’s asphalt roofing business?

A
  • GAFGLAS Built-Up Roofing System
  • RUBEROID Modified Bitumen Roofing System
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the components and application methods of the GAFGLAS Built-Up Roofing System?

A
  • Components: Base sheets, ply sheets, cap sheets
  • Application Method: Hot asphalt
17
Q

What are the components and application methods of the RUBEROID Modified Bitumen Roofing System?

A
  • APP (Atactic Polypropylene): Smooth and granule surfaced
  • SBS (Styrene Butadiene Styrene): Smooth, granule, and coated surfaced
  • Application Methods: Torch (APP), Heat Weld (SBS), Hot asphalt, Cold adhesive, Self-adhered
18
Q

What are the characteristics of Modified Bitumen Roofing Systems?

A
  • Heavier sheets, reduce layers in roofing system
  • Combined with built-up base and ply sheets or modified smooth surface base and ply sheets
  • Once popular, now less due to cost, environmental concerns, and regulations
  • Push towards single-ply roofing options
19
Q

What are the characteristics of Built-Up Roofing (BUR)?

A
  • Multiple layers installed with asphalt for waterproofing
  • Base sheets are heavier than ply sheets, can be used on deck or insulation
  • Ply sheets installed next, then surfacing (cap sheet, gravel in hot asphalt, or coating)
  • Protects roof from sun’s rays
20
Q

Match the following descriptions to either Built-Up Roofing (BUR) or Modified Bitumen:
- Styrene Butadiene Styrene (SBS), smooth granule and coated surface
- Application method cold adhesive
- Application method hot asphalt only
- Comprised of base, ply, and cap sheets
- Application method torch APP and/or Heat Weld SBS
- Atactic Polypropylene (APP), smooth and granule surfaced

A
  • Modified Bitumen: Styrene Butadiene Styrene (SBS), smooth granule and coated surface
  • Modified Bitumen: Application method cold adhesive
  • Built-Up Roofing: Application method hot asphalt only
  • Built-Up Roofing: Comprised of base, ply, and cap sheets
  • Modified Bitumen: Application method torch APP and/or Heat Weld SBS
  • Modified Bitumen: Atactic Polypropylene (APP), smooth and granule surfaced
21
Q

What are the characteristics of Asphaltic BUR Systems?

A
  • Built up with plies between hot asphalt, typically mopped
  • Seams sealed with asphalt
  • Warranty: 10-20 years
  • Minimum slope: 1/4 out of 12
  • Pros: Extremely waterproof
  • Cons: Danger of hot asphalt kettle
22
Q

What are the characteristics of Asphaltic APP Systems?

A
  • APP membrane typically torched down
  • Seams sealed with torch
  • Warranty: 10-20 years
  • Minimum slope: 1/4 out of 12
  • Pros: Very waterproof, no kettle
  • Cons: Open flames require skill
23
Q

What are the characteristics of Asphaltic SBS Systems?

A
  • Can be laid over a wood deck
  • Base and cap sheet with hot asphalt, typically mopped
  • Seams sealed with asphalt, can be glued
  • Warranty: 10-20 years
  • Minimum slope: 1/4 out of 12
  • Pros: Very waterproof, faster
  • Cons: Danger of hot asphalt kettle
24
Q

What are the characteristics of Self-Adhered SBS Systems?

A
  • Liberty is a self-adhered alternative to a torch-applied modified system
  • Base and cap sheet self-adhered
  • Seams are self-adhered
  • Warranty: 10-15 years
  • Pros: Super easy, low skill
  • Cons: Short longevity
25
Q

Match the following descriptions to the correct system: Asphaltic BUR Systems, Asphaltic SBS Systems, Asphaltic APP Systems
- Base and cap sheet with hot asphalt
- Can be laid over a wood deck
- Extremely waterproof
- Built up with plies between hot asphalt
- Membrane is typically torched down

A
  • Asphaltic SBS Systems: Base and cap sheet with hot asphalt
  • Asphaltic SBS Systems: Can be laid over a wood deck
  • Asphaltic BUR Systems: Extremely waterproof
  • Asphaltic BUR Systems: Built up with plies between hot asphalt
  • Asphaltic APP Systems: Membrane is typically torched down
26
Q

What are the three systems in GAF’s Liquid Applied Roofing offerings?

A
  • HydroStop
  • United Coatings
  • Top Coat
27
Q

What are the products under the HydroStop system?

A
  • Premium Coat
  • Foundation Coat
  • Premium Coat Finish
  • Traffic Coat
  • Barrier Guard
  • Clear Guard Plus
  • Flex Coat
  • Premium Coat Butter Grade Flashing
28
Q

What are the products under the United Coatings system?

A
  • Roof Mate
  • Roof Shield
  • Roof Coat
  • Diathon
  • Kymax
  • Unisil
  • Elastuff
  • Canyon Tone
  • Rhinotop
29
Q

What are the five technologies used in HydroStop and United Coatings, and their features?

A
  • Acrylic: Best balance of cost and effectiveness
  • Silicone: Good in ponding water and long lasting
  • Urethane: Best for high traffic and hail resistance
  • PVDF: Stays clean and retains color
  • SEBS: Lower application temp and good water resistance
30
Q

Which acrylic products belong to United Coatings and HydroStop systems?

A
  • United Coatings: Acron, Canyon Tone, Diathon, Energy Coat, Fire Shield, Rhinostop, Roof Mate, Roof Shield, XR-2000
  • HydroStop: Barrier Guard, Flex Coat, Premium Coat, Traffic Coat
31
Q

What are the silicone, urethane, PVDF, and SEBS products in United Coatings?

A
  • Silicone: Unisil, Unisil HS
  • Urethane: Elastuff
  • PVDF: Kymax
  • SEBS: Surface Seal SB Coating
32
Q

What are the parts of a liquid applied roof and their functions?

A
  • Liquid Membrane: Primary waterproofing layer
  • Coating: Secondary protective layer
33
Q

What are the application methods for liquid applied roofs?

A
  • Roller
  • Brush
  • Sprayer
34
Q

Match the feature and benefits by the technology:
- Best for high traffic and hail resistance
- Stays clean and retains color
- Best balance of cost and effectiveness
- Good in ponding water and long-lasting
- Lower application temperature and good water resistance
- Elastuff

A
  • Urethane: Best for high traffic and hail resistance
  • PVDF: Stays clean and retains color
  • Acrylic: Best balance of cost and effectiveness
  • Silicone: Good in ponding water and long-lasting
  • SEBS: Lower application temperature and good water resistance
  • Urethane: Elastuff

GAF Training (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions