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4.504.1 Covering of Duct Openings and Protection of Mechanical Equipment During Construction

Los Angeles Green Building Code > 4 Residential Mandatory Measures > 4.504 Pollutant Control > 4.504.1 Covering of Duct Openings and Protection of Mechanical Equipment During Construction

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At the time of rough installation, during storage on the construction site and until final startup of the heating, cooling and ventilating equipment, all duct and other related air distribution component openings shall be covered with tape, plastic, sheetmetal or other methods acceptable to the enforcing agency to reduce the amount of water, dust and debris, which may enter the system.

TABLE 4.504.1

ADHESIVE VOC LIMIT^{1, 2} Less Water and Less Exempt Compounds in Grams per Liter

	ARCHITECTURAL APPLICATIONS	VOC LIMIT
	Indoor carpet adhesives	50
	Carpet pad adhesives	50
	Outdoor carpet adhesives	150
	Wood flooring adhesive	100
	Rubber floor adhesives	60
	Subfloor adhesives	50
	Ceramic tile adhesives	65
	VCT and asphalt tile adhesives	50
	Drywall and panel adhesives	50
	Cove base adhesives	50
	Multipurpose construction adhesives	70
	Structural glazing adhesives	100
	Single-ply roof membrane adhesives	250
	Other adhesives not specifically listed	50
	SPECIALTY APPLICATIONS
	PVC welding	510
	CPVC welding	490
	ABS welding	325
	Plastic cement welding	250
	Adhesive primer for plastic	550
	Contact adhesive	80
	Special purpose contact adhesive	250
	Structural wood member adhesive	140
	Top and trim adhesive	250
	SUBSTRATE SPECIFIC APPLICATIONS
	Metal to metal	30
	Plastic foams	50
	Porous material (except wood)	50
	Wood	30
	Fiberglass	80

If an adhesive is used to bond dissimilar substrates together, the adhesive with the highest VOC content shall be allowed.
For additional information regarding methods to measure the VOC content specified in this table, see South Coast Air Quality Management District Rule 1168.

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