PLTW CEA 3.1.4 Commercial Roof Systems

Which type of joist used in low-slope roof framing is shown in the image?

• Open Web Steel Joists

• Light Gauge Steel Joists

• Wood Joists

• Plastic Joists

Component B of the image in a low slope roof system is the ______ layer.

• Surfacing

• Insulation

• Roof Decking

• Roof Framing

Which pitched roof covering is shown in the image?

• Asphalt Shingles

• Standing Metal Seam

• Clay / Cement Tiles

• Slate

This type of low slope roof covering is made of a liquid that expands into a foam to create a solid protective layer.

• EPDM

• 
  Spray Polyurethane Foam (SPF)

• Built-Up Roof

• Asphalt Shingles

Component B of a typical pitched roof system is the ______ layer.

• Roof Covering

• Underlayment

• Roof Decking

• Roof Framing

Built-up Roof (BUR) membranes are known for having ______.

• Metal sheets

• Alternating layers of asphalt and reinforcing fabric

• Wooden shingles

• Plastic tiles

Fill in the blank: A roof covering that uses natural materials and can support plant growth is called a ________.

• Slate

• Green Roof

• Asphalt Shingles

• Built-Up Roof (BUR)

Component A of a typical pitched roof system is the ______ layer.

• Roof Covering

• Underlayment

• Roof Decking

• Roof Framing

What is a common incorrect term for low-slope roofs?

• Flat roofs

• Steep roofs

• Curved roofs

• Slanted roofs

Component A of the image in a low slope roof system is the ______ layer.

• Surfacing

• Insulation

• Roof Decking

• Roof Framing