This is the most common roofing material used on residential homes in the U.S.
Asphalt shingles
Most commercial buildings have this type of roof slope.
Flat (or low slope)
Which type of roofing usually costs more per square foot: residential or commercial?
Commercial
TPO stands for this type of roofing membrane.
Thermoplastic Polyolefin
This term refers to the overall structure that supports the roof covering.
Roof deck
This roof style is sloped and designed to shed water quickly.
Pitched (or steep-slope) roof
This system uses large sheets of roofing material instead of individual shingles.
Single-ply roofing
Residential roofs are designed mainly for appearance, while commercial roofs are designed mainly for this.
Function / durability
TPO is most commonly used on this type of building.
Commercial buildings
This protective layer is installed between the roof deck and shingles.
Underlayment
This part of the roof protects the edges and helps direct water into the gutters.
Drip Edge
This commercial roofing system is installed using hot asphalt or adhesive layers.
Built-Up Roofing (BUR)
Which type of roof typically has HVAC units installed directly on it?
Commercial
This color TPO roof helps reduce heat absorption and energy costs.
White
This measurement unit is used to price roofing materials (100 sq ft).
A square
This material is often used on higher-end homes and can last 50+ years.
Metal or Slate
This is a common drainage method used on flat commercial roofs.
Scuppers
This roofing type usually requires more frequent inspections and maintenance.
Commercial roofing
TPO seams are sealed using this method.
Heat welding
This occurs when water sits on a flat roof for more than 48 hours.
Ponding water
This roofing component prevents water from entering around chimneys and walls.
Flashing
This factor is most critical when designing a commercial roof: foot traffic, equipment, or aesthetics?
Foot traffic / equipment load
Why are residential roofing materials usually lighter than commercial materials?
Homes are not designed to support heavy loads
Name one advantage of TPO over traditional asphalt roofing.
Energy efficiency, flexibility, fewer seams, chemical resistance (accept any)
Can you name all the "Seans"?
Sean, Vershawn, Lashawn