4.1001.3 Fireplace Chimney and Combustion Flue Vents

Topic: 
Attics
Subtopic: 
General Preparation
Desired Outcome: 
Combustible materials kept away from combustion sources
For supporting material, see Calculation of the Infiltration Credit and Referenced Standards.
TitleSpecification(s)Objective(s)
4.1001.3a
Verify attic prep

Holes, penetrations, and bypasses will be sealed

Dams will be fixed in places that maintain required clearance

Prevent air leakage

Ensure insulation dams maintain clearance
4.1001.3b
Required clearance

A rigid dam having a height  to ensure a 3" clearance area free of insulation or combustibles  between combustion flue vent and dam, unless the flue vent is listed for a lesser clearance

Ensure dam material does not bend, move, or sag

Prevent a fire hazard
4.1001.3c
Safety

Insulation will not be allowed between a heat-generating appliance and a dam unless material is rated for contact with heat generating sources

Prevent a fire hazard
4.1001.3d
Occupant education

Documentation of material and R-value will be provided to occupant

Provide occupant with documentation of installation