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Building Inspection Department
PLANS EXAMINATION REPORT
Address: lOC�20 sDr�`ws �ad Date:-i�I;
Project Name: /` �'yrr /��%��► %u-hlio.., e. f F
Drawing
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Received by: Date:
Table 1: Minimum Insulation Thickness for Circulating Hot Water Pipes
Table 2: Minimum Insulation Thickness for HVAC Pipes
Piping System Types
Fluid Temp.
Range(°F)
Insulation Thickness in Inches by Pipe Sizes
Heating Systems
Non -Circulating Runouts
Circulating Mains and
Runouts
Heated Water
Up to 1"
Up to 1.25"
1.5" to 2.0"
Over 2"
°
Temperature ( F)
2.0
Low Temperature
106-200
0.5
170-180
0.5
1.0
1.5
2.0
140-169
0.5
0.5
1.0
1.5
100-139
0.5
0.5
0.5
1.0
Table 2: Minimum Insulation Thickness for HVAC Pipes
Piping System Types
Fluid Temp.
Range(°F)
Insulation Thickness in Inches by Pipe Sizes
2" Runouts 1" and Less 1.25" to 2.0" 2.5" to 4"
Heating Systems
Low Pressure/Temperature
201-250
1.0
1.5
1.5
2.0
Low Temperature
106-200
0.5
1.0
1.0
1.5
Steam Condensate (for feed water)
Any
1.0
1.0
1.5
2.0
Cooling Systems
Chilled Water, Refrigerant and
40-55
0.5
0.5
0.75
1.0
Brine
Below 40
1.0
1.0
1.5
1.5
NOTES TO FIELD: (Building Department Use Only)
Project Title: River Ridge BUILDING "F" Page 5 of 5
Data filename: C:\DWG07\SPRING LOOP RIVER RIDGE\RR-rescheck-BUILDING-F.rck Report date: 12/12/07
Comments:
Solar Heat Gain Coefficient:
Lj The area -weighted average Solar Heat Gain Coefficient (SHGC) of all glazing cannot exceed 0.4. SHGC values are determined in
accordance with the NFRC test procedure or taken from the default table.
Air Leakage:
® Joints, penetrations, and all other such openings in the building envelope that are sources of air leakage are sealed.
® Recessed lights are 1) Type IC rated, or 2) installed inside an appropriate air -tight assembly with a 0.5" clearance from
combustible materials. If non -IC rated, fixtures are installed with a 3" clearance from insulation.
Skylights:
® Minimum insulation requirement for skylight shafts equal to or greater than 12 inches is R-13.
Materials Identification:
® Materials and equipment are installed in accordance with the manufacturer's installation instructions.
® Materials and equipment are identified so that compliance can be determined.
® Manufacturer manuals for all installed heating and cooling equipment and service water heating equipment have been provided.
0 Insulation R -values and glazing U -factors are clearly marked on the building plans or specifications.
® Insulation is installed according to manufacturer's instructions, in substantial contact with the surface being insulated, and in a
manner that achieves the rated R -value without compressing the insulation.
Duct Insulation:
® Supply ducts in unconditioned attics or outside the building are insulated to R-8.
® Return ducts in unconditioned attics or outside the building are insulated to R-4.
Supply ducts in unconditioned spaces are insulated to R-6.
0 Return ducts in unconditioned spaces (except basements) are insulated to R-2. Insulation is not required on return ducts in
basements.
Where exterior walls are used as plenums, the wall is insulated to R-8.
Duct Construction:
0 Duct connections to flanges of air distribution system equipment are sealed and mechanically fastened.
® All joints, seams, and connections are securely fastened with welds, gaskets, mastics (adhesives), mastic -plus -embedded -fabric,
or tapes. Tapes and mastics are rated UL 181 A or UL 181 B.
Exceptions:
Continuously welded and locking -type longitudinal joints and seams on ducts operating at less than 2 in. w.g. (500 Pa).
Lj The HVAC system provides a means for balancing air and water systems.
Temperature Controls:
0 Thermostats exist for each dwelling unit (non -dwelling areas must have one thermostat for each system or zone). A manual or
automatic means to partially restrict or shut off the heating and/or cooling input to each room is provided.
Electric Systems:
O Separate electric meters exist for each dwelling unit.
Service Water Heating:
Water heaters with vertical pipe risers have a heat trap on both the inlet and outlet unless the water heater has an integral heat
trap or is part of a circulating system.
0 Circulating hot water pipes are insulated to the levels in Table 1.
Circulating Hot Water Systems:
Lj Circulating hot water pipes are insulated to the levels in Table 1.
Swimming Pools:
LI All heated swimming pools have an on/off heater switch and a cover unless over 20% of the heating energy is from non-depletable
sources. Pool pumps have a time clock.
Heating and Cooling Piping Insulation:
0 HVAC piping conveying fluids above 105 degrees F or chilled fluids below 55 degrees F are insulated to the levels in Table 2.
Project Title: River Ridge BUILDING "F"m Page 4 of 5
Data filename: C:\DWG07\SPRING LOOP RIVER RIDGE\RR-rescheck-BUILDING-F.rck Report date: 12/12/07