4.1103.5 Exterior Wall Surface Insulation

Topic: 
Walls
Subtopic: 
Enclosed Walls
Desired Outcome: 
Complete and continuous thermal 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 around the exterior of the building to minimize thermal bridging
For supporting material, see Referenced Standards and Building America Solution Center.
TitleSpecification(s)Objective(s)
4.1103.5a
Worker safety

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

4.1103.5b
Occupant safety

Occupant will be notified of changes or repairs to be made

An occupant safety plan will be prepared and implemented

Ensure occupant safety

4.1103.5c
Pre-inspection

Conduct pre-inspection in accordance with SWS 2.0100.4 Work Area Inspection and Stabilization

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

Existing water control measures will be identified

Air sealing locations will be identified on the exterior walls

Air sealing will be completed before installing insulation unless an alternative 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 system will be applied

For structures covered by the International Building Code ( IBC IBC International Building Code ), all exterior walls to be insulated will be assessed for provision of a thermal boundary Thermal boundary The separation between the interior and exterior environments of a building that slows heat flow (fire stopping) when foam insulating materials are to be used ( IBC IBC International Building Code 2603.4)

Ensure that improvements will not compromise building system integrity

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

Avoid compromising water control system

Ensure that insulation retrofit complies with applicable code regarding fire separation

4.1103.5d
Prepare substrate

Exterior siding will be removed as appropriate

Where siding materials contain lead, lead-safe work practices will be used

Where siding contains asbestos, relevant codes regarding its removal and reinstallation will be determined and followed

Insulation will not be installed until mold, water leaks, water damage, and pest issues are resolved

Repairs necessary to stabilize work areas and protect or preserve integrity of energy improvement will be completed before subject work begins

Maintain a safe work environment for workers and occupants

Comply with applicable laws, regulations, and codes with regard to hazardous materials

Ensure there is a solid substrate to apply 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 and insulation

4.1103.5e
Sealant selection

Sealants will be compatible with their intended surfaces and applied in accordance with manufacturer specifications

Selection will be durable, pest resistant, and have a weather-appropriate seal

Indoor sealants will be low volatile organic compound ( VOC VOC Volatile organic compound ) products that meet independent testing and verification protocols, such as Green Seal GS-36, "GREENGUARD Children and Schools," or comparable certifications

Fire-resistance-rated assemblies will be provided with sealants permitted by the authority having jurisdiction and adopted building code

Prevent intrusion of moisture and pests into the sealed assembly

Prevent exposing workers or occupants to excessive VOC VOC Volatile organic compound levels

Ensure sealant meets or exceeds the performance characteristics of the assembly and is compliant with local fire code requirements

4.1103.5f
Installation

Insulation will be installed to provide a continuous thermal (insulation) barrier to achieve the specified R-value for the assembly being insulated. Where the insulation material does not provide an 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 as installed, such air sealing as required to create a continuous 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 in direct contact with thermal (insulation) barrier will be incorporated into the work scope

Water management system will be continuous to protect the building

Air and thermal boundaries will be integrated with other building systems

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

4.1103.5g
Onsite documentation
A dated receipt signed by the installer will be provided that includes:
  • Insulation type
  • Coverage area
  • R-value
  • Installed thickness and settled thickness (settled thickness required for loose-fill only)
  • Number of bags installed in accordance with manufacturer specifications (for loose-fill only)

Document job completion to contract specifications

Confirm amount of insulation installed

Comply with 16 CFR 460.17