Walls and Roof

Single story south oriented cape with double 24" OC stud walls and raised heel roof trusses

Subslab assembly

House sits on a 3" tall foundation wall. The foundation footings are mostly ledge. The floor is crushed stone covered with a vapor barrier.

Slab edge assembly


Foundation wall assembly

Foundation wall is 8" thick poured concrete. A total of 69 yards. It is fully covered with 4" of EPS foam.

Above grade wall assembly

The walls consist of double 2x4 walls covered on the s\exterior by zip system sheathing. The 12" thick wall cavity is filled with dense packed National fiber cellulose at a density of 4 lb/ft3.

Above grade wall R-value 43.0
Flat attic assembly

The attic consists of a 2 foot wide catwalk on horizontal 2x4s nailed into the trusses 30" off the floor. The entire attic is filled with cellulose 30" deep.

Flat attic R-value 100.0
Cathedral ceiling assembly


Roof Assembly


Windows and Doors

Window Assembly:

Serious triple glazed units. Fiberglass frames.

Door Assembly:

DTherma Trufiberglass 1/2 lite.

Average window U-factor 0.18
Solar Heat Gain Coefficient 0.37
Door U-Factor 0.25
Door Area 21 sq ft

Mechanical Systems

Space cooling - Manufacturer & Model Same Heat Pump
Space cooling - capacity 3 kW
Space heating - Manufacturer & Model Fujitsu Mini Split Air Source Hea Pump Model (RLS2)
Space heating - capacity 3 kW
Domestic hot water - Manufacturer & Model Kenmore 60 Gallon Electric
Domestic hot water - capacity 60 gal
Domestic hot water - efficiency 88 kW
Ventilation - Manufacturer & Model Fantech AR704 heat Recovery Ventilator
Lighting Manufacturer and Model All 8watt LED bulbs
Lighting Efficiency 750%
Mechanical Equipment Installation Details and Comments

I installed all mechanical items. Each system was fully tested when installation was complete.