HomeMy WebLinkAboutAir Barrier, Insulation Inspection2020 AIR BARRIER AND INSULATION INSPECTION COMPONENT CRITERIA
TABLE 402.4.1.1
AIR BARRIER AND INSULATION INSPECTION COMPONENT CRITERIA a
Project Name: REED RESIDENCE Builder Name:
Street: SNEED ROAD Permit Office: ST LUCIE COUNTY
City, State, Zip: FORT PIERCE , FL, Permit Number:
Y
Owner: RYAN AND SHANNYN REED Jurisdiction: ST LUCIE COUNTY
LU
Design Location: FL, Fort Pierce
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COMPONENT
AIR BARRIER CRITERIA
INSULATION INSTALLATION CRITERIA
General
A continuous air barrier shall be installed' in the building envelope.
Air -permeable insulation shall
requirements
The exterior thermal envelope contains a continuous air barrier.
not be used as a sealing material.
Breaks or joints in the air barrier shall be sealed.
Ceilinglattic
The air barrier in any dropped ceiling/soffit shall be aligned with the
The insulation in any dropped ceiling/soffit
insulation and any gaps in the air barrier shall be sealed.
shall be aligned with the air barrier.
Access openings, drop down stairs or knee wall doors to
unconditioned attic spaces shall be sealed.
Wails
The junction of the foundation and sill plate shall be sealed.
Cavities within corners and headers of frame walls
The junction of 1he top plate and the top of exterior walls shall be sealed.
shall be insulated by completely filling the cavity with a
Knee walls shall be sealed,
material having a thermal resistance of R-3 per inch
minimum.
Exterior, thermal envelope insulation for framed walls
shall be installed in substantial contact and continuous
alignment with the air barrier.
Windows, skylights
The space between window/doorjambs and framing, and
and doors
skylights and framing shall be sealed..
Rim joists
Rim joists shall include the air barrier.
Rim .joists shall be insulated.
Floors
The air barrier shall be installed at any exposed edge of insulation.
Floor framing cavity insulation shall be installed to
(including
maintain permanent contact with the underside of
lbove-garage
subfioor decking, or floor framing cavity insulation shall
.nd cantilevered floors)
be permitted to be in contact with the top side of
sheathing, or continuous insulation installed on the
underside of floor framing and extends from the bottom
to the top of all perimeter floor framing members.
Crawl space walls
Exposed earth in unvented crawl spaces shall be covered with a
Where provided instead of floor insulation, insulation
Class I vapor retarder with overlapping joints taped.
shall be permanently attached to the crawispace'walls.
Shafts, penetrations
Duct shafts, utility penetrations, and flue shafts opening to exterior
or unconditioned space shall be sealed.
Batts in'narrow cavities shall be cut -to fit, or narrow
cavities shall be filled by insulation that on installation
Narrow cavities
readily conforms to the available cavity spaces.
Garage separation .
Air sealing shall be provided between the garage and conditioned spaces.
.
Recessed lighting
Recessed light fixtures installed in the building thermal envelope shall
Recessed light fixtures installed in the building
be sealed to the finished surface.
thermal envelope shall be air tight and IC rated.
Plumbing and wiring
Batt insulation shall be cut neatly to fit around wiring an
plumbing in exterior walls, or insulation that an
installation readily conforms to available space shall
extend behind rilr)ina and wirin .
Shower/tub
The air barrier installed at exterior walls adjacent to showers and
Exterior walls adjacent to showers and tubs shall be
on exterior wall
tubs shall separate them from the showers and tubs.
insulated.
Electrical/phone box on
The air barrier shall be installed behind electrical or communication
exterior walls
boxes or air -sealed boxes shall be installed.
HVAC register boots
HVAC supply and return register boots that penetrate building thermal
envelope shall be sealed to the sub -floor, wall covering or ceiling
Concealed
When required to be sealed, concealed fire sprinklers shall only be sealed
sprinklers
in a manner that is recommended by the manufacturer. Caulking or other
adhesive sealants shall not be used to fill voids between fire sprinkler
cover plates and walls or ceilin s.
a. In addition, inspection of log walls shall be in accordance with the provisions of ICC400.
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