HomeMy WebLinkAboutAir Barrier & Insulation Inspection2020 - AIR BARRIER AND INSULATION INSPECTION COMPONENT CRITERIA
TABLE 402.4.1.1
AIR BARRIER AND INSULATION INSPECTION COMPONENT CRITERIA
Project Name:. Langel Residence Builder Name:
Street: 10610 Pine Needle Drive Permit Office: St. Lucie County
City, State, Zip: Fort Pierce, FL, 34945 Permit Number:
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Owner: Langel Residence Jurisdiction: St. Lucie County
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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
The exterior thermal envelope contains a continuous air barrier.
not be used as a sealing material.
requirements
Breaks or joints in the air barrier shall be sealed.
Ceiling/attic
The air barrier in any dropped ceiling/soffit shall be aligned with
The insulation in any dropped ceiling/soffit
the 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.
Walls
The junction of the foundation and sill plate shall be sealed.
Cavities within comers and headers of frame walls
The junction of the top plate and the top of exterior walls shall be
shall be insulated by completely filling the cavity
sealed.
with a material having a thermal resistance of R-3
Knee walls shall be sealed.
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/door jambs 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
Floor framing cavity insulation shall be installed to
(including
insulation.
maintain permanent contact with the underside of
above -garage
subfloor decking, or floor framing cavity insulation
and cantilevered
shall be permitted to be in contact with the top side
floors)
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
Where provided instead of floor insulation, insulation
a Class I vapor retarder with overlapping joints taped.
shall be permanently attached to the crawlspace wall
.
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
Narrow cavities
installation readily conforms to the available cavity
spaces.
Garage separation
Air sealing shall be provided between the garage and conditioned spa
s.
Recessed lighting
Recessed light fixtures installed in the building thermal envelope
Recessed light fixtures installed in the building
shall be sealed to the finished surface.
thermal envelope shall be airtight and IC rated.
Plumbing and wiring
Batt insulation shall be cut neatly to fit around wiring
and plumbing in exterior walls, or insulation that on
installation readily conforms to available space shall
t-xtpnd behind p*pmng and wiring-
Shower/tub
The air barrier installed at exterior walls adjacent to showers and
Exterior walls adjacent to showers and tubs shall
on exterior wall
tubs shall separate them from the showers and tubs.
be insulated.
Electrical/phone box or
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
Concealed
When required to be sealed, concealed fire sprinklers shall only be
sprinklers
sealed in a manner that is recommended by the manufacturer.
Caulking or other adhesive sealants shall not be used to fill voids
rink! cover plates and walls or cem ings
a. In addition, inspection of log walls shall be in accordance with the provisions of [CC-400.
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