# 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 size (kWdc) | Special feature
Self-utilization credit | Special feature
Zonal heating controls | Special feature
ENVELOPE
Insulation above roof deck | Special feature
Advanced wall framing (see opaque surface constructions) | Special feature
insulation below roof deck | Special feature
Building air leakage/reduced infiltration | HERS verification of reported ACH50 value
Ceiling has high level of insulation | Special Feature
Cool roof | Special feature
Dynamic glazing | Not yet implemented
Exterior shading device | Not yet implemented
Exposed slab area greater than 20% | Special feature
Metal-framed assembly | Special feature
Window overhangs and sidefins | Special feature
Quality insulation installation (QII) | HERS verification
Quality insulation installation for spray polyurethane foam (SPF) insulation | HERS verification
Raised heel truss (height above top plate) | Special feature
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 | HERS verification
Central fan ventilation cooling, variable speed | HERS verification
Verified EER | HERS verification
Evaporatively-cooled condenser | HERS verification
Evaporative cooling, indirect, indirect/direct | Not yet implemented
Verified heat pump rated heating capacity | HERS verification
Verified HSPF | HERS verification
Verified SEER | HERS verification
Indoor air quality ventilation | HERS verification
Indoor air quality, balanced fan | Special feature
Kitchen range hood | HERS verification
No cooling system installed | Special feature
Pre-cooling credit | Special feature
Refrigerant charge/fault indicator display (FID) | HERS verification
Refrigerant charge verification required if a refrigerant containing component is altered | HERS verification
Whole-building mechanical ventilation airflow | HERS verification
Whole house fan airflow and fan efficacy | HERS verification
Whole house fan | Special feature
DUCTS
Duct design specifies buried duct | HERS verification
Bypass duct conditions in zonal system(s) | HERS verification
Duct design specifies deeply buried duct | HERS verification
Duct leakage testing | HERS verification
Ducts located entirely in conditioned space confirmed by duct leakage testing | HERS verification
Ducts in crawl space | Special feature
Duct sealing required if a duct system component, plenum, or air handling unit is altered | HERS verification
High R-value ducts | Special feature
Low leakage air handling Unit | HERS verification
Verified low leakage ducts in conditioned space must meet maximum 25 cfm leakage to outside (RA3.1.4.3.8) | HERS verification
New ductwork added is less than 40 ft. in length | Special feature
Non-standard duct leakage target | HERS verification
Non-standard duct location (any location other than attic) | Special feature
Verified duct design (RA3.1.4.1.1) | HERS verification
WATER HEATING
Compact distribution system basic credit | Special feature
Compact distribution system expanded credit | HERS verification
Drain water heat recovery system | HERS verification
Multifamily: Drain water heat recovery system | HERS verification
Multifamily: Recirculating demand control | Special feature
Multifamily: No loops or recirc pump | Special feature
Multifamily: Recirculating with no control (continuous pumping) | Special feature
Multifamily: Recirculating with temperature modulation | Special feature
Multifamily: Recirculating with temperature modulation and monitoring | Special feature
Solar water heating credit, Multi-family building special feature and additional documentation | Special feature and additional documentation
Central parallel piping | Special feature
Central parallel piping (HERS verified) | HERS verification
Pipe insulation, all lines (HERS verified) | HERS verification
Point of use | Special feature
Recirculating with demand control, occupancy/ motion sensor | Special feature
Recirculating with demand control, occupancy/ motion sensor (HERS verified) | HERS verification
Recirculating with demand control, push button | Special feature
Recirculating with demand control, push button (HERS verified) | HERS verification
Recirculating 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; specific brand/model, or equivalent, must be installed | Special feature
ADDITIONS/ALTERATIONS
Verified existing conditions | HERS verification