4.1003.12a
All worker safety specifications will be in accordance with SWS 2.0100.3 Worker Safety
Ensure worker safety, especially in regard to fall protection considerations and contaminants found in demolition, such as asbestos, lead, polychlorinated biphenyls, etc.
4.1003.12c
Conduct pre-inspection in accordance with SWS 2.0100.4 Work Area Inspection and Stabilization
Gaps, cracks, and holes in fire separations located within the work area will be visually identified and incorporated into air sealing work scope, including those that span two conditioned or unconditioned spaces
Where drawings are available that identify specific fire-resistance ratings (i.e., 1 hour, 2 hour), materials and methods will be employed to preserve or restore such rating
Where drawings are unavailable or do not identify specific fire-resistance ratings, the fire-resistance rating of the assembly may be inferred from the current construction (i.e., single 5/8 sheetrock, concrete masonry unit), and materials and methods employed will be consistent with restoring or preserving such inferred fire-resistance rating
Repairs necessary to stabilize work areas and protect or preserve integrity of energy improvement will be completed before subject work begins
Insulation will not be installed if moisture-related issues are not resolved
Identify and remediate pest, moisture, and air leakage and electrical problems before installing insulation
Ensure a durable, continuous air and
thermal boundary
Thermal boundary
The separation between the interior and exterior environments of a building that slows heat flow
4.1003.12d
All surfaces where
SPF
SPF
Spray polyurethane foam
is applied will be clean, dry, and in accordance with manufacturer specifications for ambient and surface temperatures
All existing attic floor insulation and
vapor retarder
Vapor retarder
A material that slows the passage of water vapor and contains a perm rating above 1
will be removed
Ensure proper bonding of
SPF
SPF
Spray polyurethane foam
to substrate surfaces
Ensure the new conditioned space is coupled with the conditioned space
4.1003.12e
Attic space ventilation to be retained will be appropriately baffled and protected to allow for maximum application of foam insulation at exterior top plate/vent interface
Ensure insulation R-value is not reduced
Ensure continuous insulation and air seal of top plate and roof deck
4.1003.12f
Insulation will be installed to prescribed R-value in accordance with manufacturer specifications
SPF
SPF
Spray polyurethane foam
will be applied to desired thickness onto roof sheathing between rafters or trusses, using a pass thickness maximum as indicated by manufacturer specifications
When specified, underside of rafters or trusses will be covered with
SPF
SPF
Spray polyurethane foam
to provide layer of continuous insulation
In colder climates (
IECC
IECC
International Energy Conservation Code
Zones 5-8)
SPF
SPF
Spray polyurethane foam
will be installed to a thickness of least class II
vapor retarder
Vapor retarder
A material that slows the passage of water vapor and contains a perm rating above 1
or have at least class II
vapor retarder
Vapor retarder
A material that slows the passage of water vapor and contains a perm rating above 1
coating or covering in direct contact with the underside of the
SPF
SPF
Spray polyurethane foam
In no case will the final thickness exceed the manufacturer's tested thickness used to determine the maximum 75 flame spread and 450 smoke-developed index when tested to
ASTM
ASTM
ASTM International, www.astm.org
E84 or
UL
UL
Underwriters Laboratories
723
Foam will be provided with ignition and thermal boundaries as required by code
Ensure complete and consistent coverage throughout roof plane
Eliminate cracks, gaps, and voids
Minimize framing cavity air flow
Minimize moisture migration and unwanted condensation in insulation (vapor retarders)
Ensure alignment of insulation and
air barrier
Air barrier
The separation between the interior and exterior environments of a building that slows air flow to the point that no smoke movement is visible at 50 pascals of pressure difference across the boundary
4.1003.12g
A dated receipt signed by the installer will be provided that includes:
Coverage area Thickness R-value Document job completion to contract specifications
Confirm amount of insulation installed
Comply with 16 CFR 460.17
