Quantcast Natural and Artificial Lighting Considerations

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Using gypsum board products with recycled content
Using suspended acoustical ceiling systems with recycled content
Using low solvent or water based adhesives with low or no VOCs
Using rubber or linoleum resilient flooring with recycled content
Using paints and sealants without aromatic hydrocarbons, halogenated solvents, mercury compounds, lead
or other heavy metals
Using metal toilet compartments or compartments with recycled content
Envelope Considerations:
 Using insulation in the walls and roof that exceed the standard criteria
 Using a vapor barrier at the warm side of the exterior envelope to minimize the loss of thermal
performance due to moisture buildup
 Minimizing convection losses through building envelope with proper detailing, weather stripping and
sealants
 Using a reflective barrier in the roof in order to reduce heat gain
Natural and Artificial Lighting Considerations:
 Optimize use of windows and skylights for natural day lighting
 Using high performance glazing considering exterior exposure, shading, U values and light transmittance
 Using window systems which allow low heat loss through glazing seals
 Using large skylights for natural day lighting in order to reduce lighting loads
 Using skylights with diffusers and baffles for a more uniform distribution of light
 Using windows that incorporate light shelves to bounce light further into the building
 Using daylight sensors to reduce footcandles of illumination on bright sunny days
 Using reflective and perforated blinds on windows to reduce glare and reduce heat transmission through
the glass
HVAC Considerations:
 Use appropriate plug loads (approx. 0.7 1.0 W/sf) and lighting loads in cooling calculations.
Measurement of actual tenant plug loads is sometimes appropriate.
 Do not include safety factors in load calculations.
 Use high efficiency equipment and motors.
 Use variable speed motors where appropriate.
 Minimize pressure losses in ductwork and piping to minimize fan and pump motor sizes.
 Use variable speed fans on cooling tower and maintain a close approach.
 Specify highest off the shelf efficiencies for major energy consuming equipment.
 Use computer-based analysis tools to evaluate building loads, size equipment, and simulate complete
building performance. The use of advanced load calculation and building simulation software such as
DOE-2.1 and BLAST (latest versions) are encouraged, especially on complex projects.
Indoor Air Quality Considerations:
 Follow the requirements of ASHRAE 62, "Ventilation for Acceptable Indoor Air Quality".
 Encapsulate insulation to ensure that fibers do not enter the occupied space or air handling systems.
 Purge the building air prior to occupancy (without using the HVAC system) to remove outgasses from
finishes, carpet, furniture, etc.
 Use methods other than duct lining for acoustical treatment of air systems.
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