Walls and Roof

The envelope consists of a number of assemblies. Window to wall ratio is 22%.

Wall assemblies are a combination of stud and mass wall. The approach to stud assemblies to fill the stud cavity with mineral wool insulation and put 3 inches of mineral wool insulation outboard of the vapor barrier. The approach at mass walls is similar, except that the stud cavity, which is shallower, is filled with foam-in-place insulation.

The air-vapor barrier is continuous, with carefully designed transitions and tie-ins at openings.

Subslab assembly

Slab on grade - 6" th.
Vapor barrier
XPS insulation 24" wide at perimeter - 2"

Subslab R-value 10.0
Foundation wall assembly

Foundation wall is essentially a frost wall. There is no basement. It is not insulated.

Above grade wall assembly

Cladding (brick, wood, metal panel)
Air space
Mineral wool insulation, 3.5" th.
Air/vapor barrier
Gypsum board sheathing
Studs with mineral wool insulation, 6" th.

Above grade wall R-value 20.6
Roof Assembly

Modified bituminous membrane roofing
Cover board
Polyisocyanurate insulation, 4" th. min.
Vapor barrier
Thermal board
Wood decking

Roof R-value 22.2

Windows and Doors

Window Assembly:

Curtainwall
Aluminum
Kawneer
1600UT

Storefront
Aluminum
Kawneer
451UT

Door Assembly:

Aluminum
Kawneer
500

Average window U-factor 0.29
Solar Heat Gain Coefficient 0.22
Visible Light Transmittance 0.41
Door U-Factor 0.51
Door Area 336 sq ft

Mechanical Systems

Space cooling - Manufacturer & Model Ground-source: Multistack MS030, MS050, MS070, Air-source: Airstack ARP060XN14H2RS0AAAEN-410A, Fan Coil Units: Airtherm Unitaire CPFR 121
Space cooling - capacity 1,000 kW
Space heating - Manufacturer & Model Ground-source: Multistack MS030, MS050, MS070, Air-source: Airstack ARP060XN14H2RS0AAAEN-410A, Fan Coil Units: Airtherm Unitaire CPFR 121
Space heating - capacity 450 kW
Domestic hot water - Manufacturer & Model Kingspan Solar collectors HP-450
Domestic hot water - capacity 500 gal
Domestic hot water - efficiency 65 kW
Ventilation - Manufacturer & Model Haakon (Custom manufactured)
Lighting Manufacturer and Model Gotham (various models), Portfolio (various models), Lithonia (various models), Pinnacle (various models)
Lighting Efficiency 0.58 W/sf
Mechanical Equipment Installation Details and Comments

Complete construction administration and commissioning process. Also studied BAS dashboard output related to systems to ensure proper operation.