energy_accessibility_firecode Flashcards
(25 cards)
What is the main purpose of energy codes?
To reduce overall citywide energy use and avoid excess infrastructure like power plants.
What unit is commonly used in energy codes to limit lighting energy?
Watts per square foot.
How has lighting design changed since the 70s due to energy codes?
Designers now use more efficient systems like LEDs and limit lighting wattage to meet code.
What is ASHRAE’s role in energy codes?
Provides benchmarks for energy use that codes often reference for compliance.
How do energy codes impact design flexibility?
Designers can choose efficient systems to meet a fixed energy budget, like 1 W/SF.
What types of buildings typically must meet energy codes?
Office buildings, retail, and most commercial uses.
Name one way building performance is measured for LEED/energy compliance.
By comparing to past ASHRAE standards and aiming for performance better than average.
Are single-family homes always required to meet energy codes?
No, it depends on the municipality.
What is the legal foundation for accessibility design?
The Americans with Disabilities Act (ADA), a civil rights law.
What is the maximum slope for an accessible ramp?
1:12 (1 foot vertical rise for every 12 feet horizontal run).
What is the minimum landing size required after 30” of ramp rise?
5 feet.
What is the standard turning radius for a wheelchair?
60 inches.
What is the reach range for accessible elements?
15” to 48” above the floor.
Why are outlet heights at 12” a problem in accessible units?
They fall below the 15” minimum reach range.
How wide must an accessible door clear opening be?
32” minimum clear, which typically means a 36” door.
What is the required space beside a door on the pull side?
18 inches on the handle side.
What is the space needed for a side approach to a door?
42” clear on the latch side and 48” deep.
What term describes units that can be easily converted to accessible?
Adaptable.
What term means units are usable for short visits by people with disabilities?
Visitable.
What is a UL listed wall assembly?
A pre-tested and documented wall system with known fire-resistance characteristics.
How long can a U419 UL assembly resist fire?
1 to 4 hours depending on gypsum layers and stud spacing.
What is a typical 1-hour fire-rated wall assembly?
Metal studs at 16” or 24” OC with 5/8” gypsum each side.
What element in drywall absorbs heat during a fire?
Gypsum, which undergoes a chemical change that absorbs heat.
How do fire-rated wall assemblies ensure continuity at ceilings?
By coordinating drywall, runners, and firestopping for continuous protection.
