R401.3 Certificate. A permanent certificate shall be
completed by the builder or other approved party and posted
on a wall in the space where the furnace is located, a utility
room or an approved location inside the building. Where
located on an electrical panel, the certificate shall not cover
or obstruct the visibility of the circuit directory label, service
disconnect label or other required labels. The certificate
shall indicate the following:
1. The predominant R-values of insulation installed in
or on ceilings, roofs, walls, foundation components
such as slabs, basement walls, crawl space walls and
floors and ducts outside conditioned spaces.
2. U-factors of fenestration and the solar heat gain
coefficient (SHGC) of fenestration. Where there is
more than one value for any component of the building
envelope, the certificate shall indicate both the
value covering the largest area and the area weighted
average value if available.
3. The results from any required duct system and building
envelope air leakage testing performed on the
building.
4. The types, sizes and efficiencies of heating, cooling
and service water-heating equipment. Where a gasfired
unvented room heater, electric furnace or baseboard
electric heater is installed in the residence, the
certificate shall indicate “gas-fired unvented room
heater,” “electric furnace” or “baseboard electric
heater,” as appropriate. An efficiency shall not be
indicated for gas-fired unvented room heaters, electric
furnaces and electric baseboard heaters.
5. Where on-site photovoltaic panel systems have been
installed, the array capacity, inverter efficiency,
panel tilt and orientation shall be noted on the
certificate.
6. For buildings where an Energy Rating Index score is
determined in accordance with Section R406, the
Energy Rating Index score, both with and without
any on-site generation, shall be listed on the
certificate.
7. The code edition under which the structure was
permitted, and the compliance path used.
