Edminster-Bohner Deep Energy Retrofit
Completion
Completion date 10/01/2005
Occupancy
Private owner, owner-occupied single-family detached home. Three permanent occupants. Two home offices; home occupied 24/7, with the exception of infrequent family vacations. Frequent visitors, including a part-time contract worker.
Scope
Renovation of various parts/aspects of existing ~1,400 sf home plus 2005 addition of ~200 sf.
Type of Construction
New - still under construction
Bedrooms
3
Bathrooms
2.5
Stories
2
Conditioned Floor Area
1,600 sq ft
Unconditioned Floor Area
400 sq ft
Location and Climate Details
Address
115 Angelita Avenue
Pacifica, CA 94044
United States
Location Type
Suburaban
Climate Region
Zone 3
Köppen Climate Type
Csb
Lat. / Long.
POINT (-122.476548 37.613796)
Solar Insolation
7 kWh/m2/day
Annual CDD and Base Temp
125 | 65 deg F
Annual HDD and Base Temp
2941 | 65 deg F
Site
Site conditions: previously developed land, preexisting structure(s)
Site description: Hillside site on uphill side of street; west-facing. High corner @ NE, low corner @ SW, steep in those two corners, terraced throughout.
Materials and Design Strategy
Materials: o Roofing: steel in sloped areas, highly durable five-ply built-up roofing under living roof in flat area
o Interior wall finishes: low-VOC paints and earth plasters
o Decking: FSC-certified, highly durable tropical Machiche
o Windows: energy-efficient, durable, steel-clad wood
Special architectural measures: In order to get heating system into conditioned enclosure, replaced old forced-air furnace with hydronic system including high-efficiency Munchkin boiler that provides both space heating and DHW. Radiant floor downstairs, Runtal wall radiators upstairs. Replaced single-paned aluminum windows in downstairs with wood double-paned, clad windows. Insulated downstairs walls with rigid polyiso in the framing cavities; recently (spring 2015) insulated the downstairs attic with loose-fill R-40 Havelock Wool. Put vapor barrier in crawl space.
Completion
Occupancy
Private owner, owner-occupied single-family detached home. Three permanent occupants. Two home offices; home occupied 24/7, with the exception of infrequent family vacations. Frequent visitors, including a part-time contract worker.
Scope
Renovation of various parts/aspects of existing ~1,400 sf home plus 2005 addition of ~200 sf.
| Type of Construction | New - still under construction |
|---|---|
| Bedrooms | 3 |
| Bathrooms | 2.5 |
| Stories | 2 |
| Conditioned Floor Area | 1,600 sq ft |
| Unconditioned Floor Area | 400 sq ft |
Location and Climate Details
| Address |
115 Angelita Avenue Pacifica, CA 94044
United States |
|---|---|
| Location Type | Suburaban |
| Climate Region | Zone 3 |
| Köppen Climate Type | Csb |
| Lat. / Long. | POINT (-122.476548 37.613796) |
| Solar Insolation | 7 kWh/m2/day |
| Annual CDD and Base Temp | 125 | 65 deg F |
| Annual HDD and Base Temp | 2941 | 65 deg F |
Site
Hillside site on uphill side of street; west-facing. High corner @ NE, low corner @ SW, steep in those two corners, terraced throughout.
Materials and Design Strategy
o Roofing: steel in sloped areas, highly durable five-ply built-up roofing under living roof in flat area
o Interior wall finishes: low-VOC paints and earth plasters
o Decking: FSC-certified, highly durable tropical Machiche
o Windows: energy-efficient, durable, steel-clad wood
In order to get heating system into conditioned enclosure, replaced old forced-air furnace with hydronic system including high-efficiency Munchkin boiler that provides both space heating and DHW. Radiant floor downstairs, Runtal wall radiators upstairs. Replaced single-paned aluminum windows in downstairs with wood double-paned, clad windows. Insulated downstairs walls with rigid polyiso in the framing cavities; recently (spring 2015) insulated the downstairs attic with loose-fill R-40 Havelock Wool. Put vapor barrier in crawl space.