1830 Peters - Lockrow House
Renovation of a neglected 1852 Greek Revival
Walls and Roof
Subslab assembly
Sub slab: dirt crawl spaces with two inches of Styrofoam under a plastic liner conditioned mechanical space basement with Anvantech flooring over two inches of Styrofoam and Patton polyethylene sheets
Foundation wall assembly
Existing, R-40 (rater indicates R-15) 8“ of closed cell foam over plastic wall liner with offset steel studs and covered with paperless drywall
Addition, R-20 (rater indicates R-23) 8“ of sprayed closed cell foam over continuous plastic wall
Above grade wall assembly
Existing, R-56 (rater indicates-47) offset wall studs with 8“ sprayed closed cell foam
Addition, R-52 off set wall studs with 8” of closed cell foam
8” double offset stud wall new addition and all existing exterior walls to offset thermal bridging and increase depth of foam insulation
American Clay over existing plaster or new wall board throughout
Cathedral ceiling assembly
Existing, R-72 +/- three by four rafters joined with new 8” rafters, the resulting cavity filled with closed cell foam, and then four inches of Styrofoam over plywood and recycled rubber underlayment
Addition, R-86 (rater indicates R-120 for both) new 10” rafters, the resulting cavity filled with closed cell foam, and then four inches of Styrofoam over plywood and recycled rubber underlayment
Roof Assembly
Sprayed foam underside of new or existing deck and 4” of Styrofoam over Strong Seal Rubber underlayment. Finished with furring strips and standing seam metal roofing
Windows and Doors
Window Assembly:
Marvin Integrity windows on the north, east and west sides of the building with Comfortex, Comfor-Track Plus cellular shades; on the south side Magnetic One Lite storm windows by Allied Windows interior of the rebuilt antique original windows and exterior wooden storm sashes. The Marvin casement windows have a U value of .29 and SHGC of.30.
Door Assembly:
The new doors are made by Thermo-Tru and are Energy star rated with a U value of 0.26 and a SHGC of 0.17
Average window U-factor
0.29
Solar Heat Gain Coefficient
0.30
Door U-Factor
0.26
Mechanical Systems
Space cooling - Manufacturer & Model
Climate Master Tranquility TT038 Ground Source Heat Pump (Energy Star Rated) (6894 Heating degree days per designer)
Space heating - Manufacturer & Model
Climate Master Tranquility TT038 Ground Source Heat Pump (Energy Star Rated) (6894 Heating degree days per designer)
Domestic hot water - Manufacturer & Model
Solar Hot Water - Velux Model CLI-U12SKOW/L218EL, SRCC Rated SEF 3.6
Domestic hot water - capacity
80 gal
Ventilation - Manufacturer & Model
LifeBreath (200Max) Heat Recovery Ventilator (Energy Star Rated), Air King ESSEV 30 kitchen range hood(Energy Star Rated), Ultra-air Whole House Dehumidifier 100V(Energy Star Rated), (6) ceiling fans(Energy Star Rated)
Lighting Manufacturer and Model
19 Energy Star rated either CFL or LED light fixtures with the remaining 14 CFL equipped recessed fixtures
Lighting Efficiency
Envelope
Air Changes per hour, ACH50
2.54 ACH50
Air Changes per hour, CFM50
1 110.00
Walls and Roof
| Subslab assembly |
Sub slab: dirt crawl spaces with two inches of Styrofoam under a plastic liner conditioned mechanical space basement with Anvantech flooring over two inches of Styrofoam and Patton polyethylene sheets |
|---|---|
| Foundation wall assembly |
Existing, R-40 (rater indicates R-15) 8“ of closed cell foam over plastic wall liner with offset steel studs and covered with paperless drywall |
| Above grade wall assembly |
Existing, R-56 (rater indicates-47) offset wall studs with 8“ sprayed closed cell foam 8” double offset stud wall new addition and all existing exterior walls to offset thermal bridging and increase depth of foam insulation |
| Cathedral ceiling assembly |
Existing, R-72 +/- three by four rafters joined with new 8” rafters, the resulting cavity filled with closed cell foam, and then four inches of Styrofoam over plywood and recycled rubber underlayment |
| Roof Assembly |
Sprayed foam underside of new or existing deck and 4” of Styrofoam over Strong Seal Rubber underlayment. Finished with furring strips and standing seam metal roofing |
Windows and Doors
Window Assembly:
Marvin Integrity windows on the north, east and west sides of the building with Comfortex, Comfor-Track Plus cellular shades; on the south side Magnetic One Lite storm windows by Allied Windows interior of the rebuilt antique original windows and exterior wooden storm sashes. The Marvin casement windows have a U value of .29 and SHGC of.30.
Door Assembly:
The new doors are made by Thermo-Tru and are Energy star rated with a U value of 0.26 and a SHGC of 0.17
| Average window U-factor | 0.29 |
|---|---|
| Solar Heat Gain Coefficient | 0.30 |
| Door U-Factor | 0.26 |
Mechanical Systems
| Space cooling - Manufacturer & Model | Climate Master Tranquility TT038 Ground Source Heat Pump (Energy Star Rated) (6894 Heating degree days per designer) |
|---|---|
| Space heating - Manufacturer & Model | Climate Master Tranquility TT038 Ground Source Heat Pump (Energy Star Rated) (6894 Heating degree days per designer) |
| Domestic hot water - Manufacturer & Model | Solar Hot Water - Velux Model CLI-U12SKOW/L218EL, SRCC Rated SEF 3.6 |
| Domestic hot water - capacity | 80 gal |
| Ventilation - Manufacturer & Model | LifeBreath (200Max) Heat Recovery Ventilator (Energy Star Rated), Air King ESSEV 30 kitchen range hood(Energy Star Rated), Ultra-air Whole House Dehumidifier 100V(Energy Star Rated), (6) ceiling fans(Energy Star Rated) |
| Lighting Manufacturer and Model | 19 Energy Star rated either CFL or LED light fixtures with the remaining 14 CFL equipped recessed fixtures |
| Lighting Efficiency |
Envelope
| Air Changes per hour, ACH50 | 2.54 ACH50 |
|---|---|
| Air Changes per hour, CFM50 | 1 110.00 |