Touchstone
Energy HomeSM Program Standards
This
program is available to all builders willing to comply to
the new Touchstone Energy HomeSM program standards
set forth by SSVEC.
SSVEC’s
PROGRAM QUALIFICATIONS:
To qualify for Touchstone Energy HomeSM certification,
new homes must meet or exceed SSVEC’s prescriptive thermal
criteria or the heat gain characteristics and incorporate
five additional energy features into each home.
Prescriptive
Standards
| BUILDING
ENVELOPE |
DESCRIPTION |
MINIMUM
R & U-VALUES |
| Ceiling |
With
Attic |
R-38 |
| Ceiling |
Roof
Ceiling Combo |
R-30 |
| Sidewalls |
Frame
or Masonry |
R-18 |
| Sidewalls |
Crawl
space or Basement |
R-13 |
| Floor |
Over
crawl space or unheated basement |
R-19 |
| Concrete
Slab *optional |
Perimeter
or Under slab |
Optional |
| Window
Glazing |
Dual
pane with thermal break or better |
.58
u-value |
| Exterior
Doors |
Metal
insulated or solid wood |
|
| Infiltration
Control |
Seal
joints and cracks with special attention to foundation
sillplate, window & door frames, and utility penetrations. |
.4
ACH |
| MECHANICAL
SYSTEMS |
DESCRIPTION |
MINIMUM
RATINGS |
| Heat
Pump |
Package
or Split |
13
SEER |
| A/C |
Package
or Spilt |
13
SEER |
| Dual
Fuel |
Split
Heat Pump with Gas Furnace |
13
SEER Heat Pump & 80 % AFUE Gas Furnace |
| Gas
Furnace |
80%
AFUE |
80%
AFUE |
| Electric
Water Heating |
Electric |
EF
= .90 |
| Gas
Water Heating |
Gas
Fired |
EF
= .56 |
| Distribution
System |
Duct
System requires R-6 insulation in all sections in unconditioned
spaces and all joints must be mastic sealed |
R-6
with 10% duct loss or less |
In addition
to these Prescriptive Standards, you must also incorporate
five additional energy saving features listed below.
Energy Saving Features
- Slab
Insulation (under slab or perimeter)
- Infiltration
Control (sealing all top plate penetrations, electrical
boxes, and windows & doors.)
- 13
SEER Electric Heat Pump
- .90
efficiency Electric Water Heating
- Exhaust
System with Controlled Dampers in Kitchen and Baths
- Duct
Work Located in Conditioned Area
- 3 Compact
Fluorescent Fixtures (screw-in compact fluorescent bulbs
do not qualify)
- Programmable
Set Back Thermostat
- Dryer
Exhaust Venting must not have any Turns (dryer located on
outside wall)
- Mastic
Sealed Duct Work (supply & return)
- Multiple
Returns
- Dual
Fuel System
- Metal
Sealed Return Plenums
Split
and Packaged Heat Pumps certified must demonstrate a minimum
SEER of 13 or more. Minimum Heat Season Performance Factor
(HSPF) must be 7 to qualify for incentives.
HVAC equipment
will be sized per the Manual “J” calculation plus
6,000 Btu’s or 25% whichever is less, or to the next
available size.
New, Improved,
Speculative and Multi-Family dwellings with less than 1,200
square feet do not have to have a maximum heat gain criteria.
But, the maximum size heat pump allowed is 2 tons or 24,000
Btuh.
Thermal Performance Standard
A.
Building Envelope
Total design heat gain per ACCA Manual J shall not exceed
the following:
14 BTU/Hr./Sq.
Ft. Conditioned spaces less than 1,350 sq. ft.
12 BTU/Hr./Sq. Ft. Conditioned spaces 1,350 - 1850 sq. ft.
11 BTU/Hr./Sq. Ft. Conditioned spaces 1,850 - 2,350 sq. ft.
10 BTU/Hr./Sq. Ft. Conditioned spaces greater than 2,350 sq.
ft.
In addition
to meeting the SSVEC’s program guidelines, each new
home must incorporate five additional energy saving features
to qualify for SSVEC’s Touchstone Energy Home. These
Energy Saving Features are listed above.
B.
Walls
Cumulative R-Value for exterior walls will be no less than
R-18. Fiberglass batts should be faced stapled to the studs.
Fibrous batt insulation should not be cut short or cut long
and forced/compressed into small areas. Fibrous batts should
be cut around electrical boxes to minimize compression and
split around plumbing and wiring. Wet spray cellulose will
be cropped smoothly to prevent convective channels and void
cavities between the insulation and sheetrock. Fiberglass
may not be used as a packing material around window or doorframes,
plumbing stacks or gaps in framing. These areas should be
filled with a foam product(s) or caulking.
C.
Ceiling
R-values
for various ceiling cavities depend on the area of space and
construction techniques. Listed below are the various R-values
for different ceiling/roof areas.
- Conventional
Ventilated Attic
– R-38 will be installed in all conventional ventilated
ceiling areas. This R-rating can be reached by installing
any combination of fibrous, cellulose or mineral wool insulation.
Member services representatives should be consulted per
blown application for approximate insulation thickness.
- Roof/Ceiling
Combinations – A minimum R-30 insulation will
be installed in Roof/Ceiling applications.
- Knee
Walls – Knee walls will be insulated with a minimum
R-19insulation.
- Knee
wall insulation should have a covering to keep the insulation
in place without compressing it on the unconditioned side.
D.
Attic Ventilation
Proper ventilation is essential for attic heat removal. The
recommended method for attic ventilation is continuous ridge,
birdboard, gable, turbine, and soffit vents. Thermostatically
controlled power vents can only be utilized when the manufacturer
data is used to match the home square footage and ventilation
rate for proper intake.
E.
Floor Insulation
Three foundation approaches are typical in this area for residential
construction: open crawl spaces, enclosed crawl spaces and
concrete slabs. Insulation requirements for each are outlined
below.
- Enclosed
Crawl Space – a minimum of R-19 faced batt insulation
will be placed between the floor joist above the crawl space.
Ground cover, vapor barrier, will reduce the evaporation
of moisture from the ground into the crawl space. A 6-mil
polyethylene vapor barrier must be installed with overlapping
joints and 100% coverage.
- Concrete
Slab – none required.
- Open
crawl space – a minimum of R-19 faced batt insulation
will be placed between the floor joist above the crawl space.
F.
Windows
Windows
must be double- pane with a thermal break between the panes.
A thermal break separates inside and outside pieces of the
window frame with an insulating material. Windows constructed
with a thermal break are identified by a AT.I.M.@ symbol.
When a home faces east and west and 50% of the glass area
is exposed to direct sunlight, it is recommended that the
windows have a low Ae@ coating. The low Ae@ coating is an
invisible metallic coating and/ or Argon fill which allows
sunlight to pass but blocks radiant heat. This microscopic
low-e coating is applied to one of the inner glass surfaces
of a sealed double- pane window, which keeps the inside window
surface warmer in the winter.
G.
Doors
Doors
in the Touchstone Energy HomeSM program should be metal insulted.
Glass doors, French or sliding style, should meet the standards
for conventional windows, double pane with a thermal break.
Precautions should be taken in sealing the rough openings.
Solid wood doors are allowed in limited use. Metal insulated
doors are recommended for attic access entrances.
H.
Infiltration Control
All exterior joints around windows, door frames, corner joints,
and all penetrations, including but not limited to electrical,
television and phone through the exterior building envelope
must be caulked, gasketed, weather-stripped, or otherwise
sealed. All sole plates must be caulked or have a sill sealer
installed.
Fireplaces
should have glass fronts or glass doors and combustion air
should be ducted in from the outside. Chimney flues and fireplaces
must have tight fitting dampers.
Outside
vented exhaust fans with back draft dampers should be installed
in all full bathrooms and kitchens.
Recessed
lighting will be a UL Listed type that is airtight and rated
for an insulated ceiling.
I.
HVAC Equipment
HVAC equipment will per sized per the Manual AJ@ calculation
plus 6,000 Btu’s or 25%, whichever is smaller, or to
the next available size. Air source heat pumps and package
systems (split & package) must be ARI rated with a minimum
13 SEER. It is recommended that all heat pumps have outdoor
thermostats to control the supplemental heat operation. The
outdoor thermostats should be staged on a balance point for
each home. It is recommended that electric heat pumps 3 and1/2
tons or smaller have 10kw strip heat. For electric heat pumps
in excess of 3 and ½ tons, it is recommended they have
15kw strip heat.
NOTE:
Due to structural requirements,
accepted building practices and optional construction techniques,
variations in program recommendations may occur.
SSVEC
reserves the right to refuse Touchstone Energy HomeSM program
qualifications of any dwelling and to change or modify the
program as deemed necessary. SSVEC assumes no responsibility
for quality of construction, material, equipment, appliances
or workmanship. SSVEC will perform random inspections to verify
compliance of program guidelines, not to check the working
functions of equipment, appliances, etc.
J.
Heating and Cooling Applications
Not fuel specific, must be 12 SEER for Heat Pumps and AC or
80% AFUE for gas.
K.
Cooking Applications
Not fuel specific.
L.
Water Heating Applications
Not
fuel specific, must be .90 for electric water heating, .56
for natural gas or propane.
Rebates and Incentives:
The
Touchstone Energy HomeSM program currently offers rebates.
When a new home in SSVEC’s service area meets approved
Touchstone Energy HomeSM program standards, with an approved
14 SEER electric heat pump or .90 efficiency electric water
heater, SSVEC may provide rebates. (Rebate programs may be
subject to change at any time.) The Touchstone Energy HomeSM
program efficiency rebates will be administered by the same
process as currently. SSVEC will have the flexibility to rebate
dollar amounts to appropriate, i.e. customer, HVAC contractor
or builder /developer. However, SSVEC will only pay up to
the current approved rebate amounts. All rebates will be paid
by SSVEC. Only one rebate will be paid for heat pumps and
one rebate for electric water heaters per residence.
Procedure:
Sign
the Builder Agreement to become a Qualified Touchstone Energy
Home Builder. SSVEC will supply home signs, stickers, completion
sheets, logos and other necessary papers on disk for your
use, and certificates for qualified homes. When beginning
to build a home, send SSVEC a start sheet, plan, or blueprint
for our records. Upon completion of the home, send SSVEC the
Touchstone Energy Home Completion and Certification Form.
SSVEC will perform random inspections of homes.
|