# 4 APPENDIX A – SPECIAL FEATURES

Measure | CF1R Documentation Requirement
GENERAL
Battery System Storage (kWh) | Special feature
Controlled-Ventilation Crawlspace (CVC) | Not yet implemented
Photovoltaic (PV) system credit | Special feature
Zonal heating controls | Special feature
ENVELOPE
Above deck insulation | Special feature
Advanced wall framing | Special feature
Below deck insulation | Special feature
Building air leakage / reduced infiltration | HERS verification of reported ACH50 value
Cool roof | Special feature
Dynamic glazing | Not yet implemented
Exterior shading device | Not yet implemented
Exposed slab area greater than 20% | Special feature
High quality insulation installation (QII) | HERS verification
Metal-framed assembly | Special feature
Non-default spray foam insulation R-values | HERS verification
Overhangs and sidefins | Special feature
Raised heel truss (height above top plate) | Special feature
Spray foam insulation, closed cell >R-5.8/inch | HERS verification
Spray foam insulation, open cell >R-3.6/inch | HERS verification
Structurally insulated panel (SIP) assembly | Special feature
MECHANICAL
Air handling unit fan efficacy | HERS verification
Airflow or System Airflow (cfm) | HERS verification
Central fan ventilation cooling, fixed speed | Special feature
Central fan ventilation cooling, variable speed | Special feature
Energy Efficiency Ratio (EER) | HERS verification
Evaporatively-cooled condenser | HERS verification
Evaporative cooling, indirect, indirect/direct | Not yet implemented.
Fan efficacy | HERS verification
High Seasonal Energy Efficiency Ratio (SEER) | HERS verification
Indoor air quality ventilation | HERS verification
No cooling | Special feature
Refrigerant charge or fault indicator display (FID) | HERS verification
Ventilation cooling system, central fan | Special feature
Whole-building mechanical ventilation airflow | HERS verification
Whole house fan | Special feature
DUCTS
Buried duct | HERS verification
Bypass duct conditions in a zonal system | HERS verification
Deeply buried duct | HERS verification
Duct leakage testing | HERS verification
Ducts in conditioned space | HERS verification
Ducts in crawl space | Special feature
High R-value ducts | Special feature
Low leakage air handler | HERS verification
Low leakage ducts in conditioned space | HERS verification
Non-standard duct leakage target | HERS verification
Non-standard duct location (any location other than attic) | Special feature
Return duct design | HERS verification
Supply duct location, surface area, R-value | HERS verification
WATER HEATING
Compact distribution system (HERS verified) | HERS verification
Multi-family: Recirculating demand control | Special feature
Multi-family: No loops or recirc pump | Special feature
Multi-family: Recirculating with no control (continuous pumping) | Special feature
Multi-family: Recirculating with temperature modulation | Special feature
Multi-family: Recirculating with temperature modulation and monitoring | Special feature
Multi-family: Solar water heating credit | Special feature and additional documentation
Central parallel piping | Special feature
Central parallel piping (HERS verified) | HERS verification
Pipe insulation, all lines | Special feature
Pipe insulation, all lines (HERS verified) | HERS verification
Point of use | Special feature
Recirculation with demand control, occupancy/ motion sensor | Special feature
Recirculation with demand control, occupancy/ motion sensor (HERS verified) | HERS verification
Recirculation with demand control, push button | Special feature
Recirculation with demand control, push button (HERS verified) | HERS verification
Recirculation with non-demand control (continuous pumping) | Special feature
Solar water heating credit, single family building | Special feature and additional documentation
Northwest Energy Efficiency Alliance (NEEA) rated heat pump water heater | Special feature
ADDITIONS/ALTERATIONS
Verified existing conditions | HERS verification
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