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