Sustainable Roofing Strategies

Instructions

• Read the article "Sustainable Roofing Strategies"
• Complete the questions below, then fill in your answers.
• Fill out and submit the AIA/CES education reporting form in the magazine, securely online, or print the form to receive one AIA learning unit.

Questions:

Program Code: 077GSSP2
LU: 1

1. Urban heat islands occur when
a. dense available shading from urban parks, trees and vegetation is available.
b. global warming increases the sea level of coastal cities in warm climates.
c. a city is hotter than the surrounding areas.
d. rooftops reflect more solar heat than nearby suburban areas.

2. Which statement best describes solar reflectance?
a. a measurement that is not used by ENERGY STAR program
b. the fraction of solar energy reflected by a roof
c. the relative ability of a roof surface to radiate absorbed heat
d. lowest index values represent cooler roofs.

3. Design strategies to obtain LEED® credit for cool roofs should
a. achieve an SRI value greater than or equal to 78 for low-slope and steep-slope roofs.
b. provide an SRI value of less than 28 for steep-slope roofs.
c. utilize used or salvaged roofing materials.
d. Meet or exceed an SRI value of 78 for low-slope roofs and 29 for steep-slope roofs.

4. Which of the following statements is true re g a rding storm water run - off??
a. impervious conventional roofs, parking lots, and roads reduce flooding risks after heavy rains.
b. stormdrains and sewers become overloaded in cities because of vegetation clogging the system, which reduces storm water run - off.
c. gontinued urban development reduces storm water run - off problems by 20 percent.
d. green roofs reduce peak flow of storm water run - off by as much as four hours, minimizing impact on sewer systems.

5. Which roofing assembly consists of insulation placed on top of the waterproofing membrane?
a. traditional roof
b. protected membrane roof
c. graduated slate roof
d. white roof

6. Which of the following is true about asphalt roofing materials?
a. seven to ten tons of asphalt coated membrane roofing has been sent to the waste stream in the last two years.
b. asphalt roofing materials can be recycled and have no impact on landfills.
c. asphalt roofing waste occupies up to two percent of landfill space in the last 20 years.
d. asphalt coated membrane roofing re p resents 11 million tons of roofing waste per year, and seven to ten percent of landfill space over the last 40 years.

7.Which is the best roofing option for mitigating urban heat island effects and reducing storm water runoff ?
a. extensive green roof
b. graduated light colored slate roof
c. domed roof
d. modified bitumen roof

8. Which roofing system is well suited for coastal areas prone to the high winds and heavy rains associated with hurricane conditions?
a. standard white roof
b. fluid-applied coating systems and spray polyurethane foam roof
c. intensive green roof
d. standard slate roof

9. Which is the recommended grade and service life for slate that may be expected to require no repair or replacement due to weathering?
a. grade SRI greater than or equal to 78 years for low-slope roofs, and 29 years for steep-slope roofs
b. grade S1 for 75 years
c. grade S3 for 75 years, applies only to graduated, steep-sloped roofs
d. grade PSI for 90 years

10. ASTM tests measure slate for all of the following qualities except:
a. water absorption.
b. weather resistance.
c. solar reflectance.
d. flexure.