• 253-858-7472

Blakley Residence

Littleton, CO

Participant information

Big Sky Insulations R-Control
Laurie Miller
15 Arden Drive
Belgrade, MT 59714
Phone: 253-846-6033
Email Address: laurie.miller@premiersips.com
Website: www.bigskyrcontrol.com


Single Family Homes (under 3,000 sq ft.)

High Performance: Yes

Project information

Blakley Residence
Littleton, CO 80120

Date Completed: August 2020

Dimensions of building (all floors of multi-story building): Main - 32'x72'
2nd Floor - 32'x72'
Basement - 32'x49'

Asking price/purchase price (Affordable Housing only): n/a

Total sq. ft. of conditioned space: 2900 sq. ft.

Built By (if different than applicant)

Justin Geissler
4800 Happy Canyon Rd
Denver, CO 80237

Panels Manufactured By: Big Sky R-Control


Designed By (if different than applicant - SIPA will only recognize members)

Molly Blakley, Architect
Molly Blakley
5604 S Datura St
Littleton, CO 80120

Total sq. ft. of conditioned space: 2900 sq. ft.

Describe the end use of the building: Architect's personal residence

How did SIP construction help you get this job?
SIPs were a requirement of the architect as having experience with SIPS, Molly knew she wanted to use them for her personal residence

SIP wall thickness and core material: 10.375" EPS

SIP roof thickness and core material: 12.375" EPS

Describe the benefits of using SIPs on this project. Did SIPs help save time, labor, construction costs, or energy?
Using SIPs on the project contributed to the highly insulated and tightly sealed envelope

Describe any innovative design elements or structural engineering involved: There is a shade pergola over a central courtyard. The pergola is a custom steel structure, with cedar slats that are tuned to allow sunlight into the center of the home in the cooler months and to shade the courtyard and block the sun from overheating the home in the summer months.

Blower door test results: 1.12 ACH50

Describe the HVAC system used on the project: Air conditioning is provided by an air-source heat-pump with three concealed horizontal ducted split indoor units strategically placed throughout the house. An energy recovery ventilator supplies balanced ventilation throughout the living areas. Heating is provided by an electric condensing boiler that supplies an in-floor radiant heating system.

Describe any other energy-saving materials used in the building envelope other than SIPs. List U-values of windows used and the U or R-value of any insulation materials:
Additional insulation is installed in the roof assembly with R-15 batt insulation on the interior side of the roof SIPs. There is R-7.5 continuous exterior insulation full height on the basement foundation walls, with R-15 batt insulation on the interior. Most of the windows have a U value of 0.31, with a few windows at the code maximum of U-0.32.

Please list any energy-efficient products or design features, such as lighting, hot water heating, appliances, passive solar:
The lighting fixtures are exclusively LED. Appliances are all highly efficient electric, including an induction cooktop and an electric condensing boiler, in anticipation of a future solar PV system that will provide locally produced renewable energy. The home is solar-ready, with dedicated utility space and conduit installed for PV wiring and panels, based on a preliminary solar survey.

Were any solar panels installed on the project? If so, indicate the size of the system:
No, the home is solar-ready, but a PV system is not installed. Panels are estimated to be installed in 2021

Please list any sustainable materials or design features not listed above, such as recycled materials, low-VOC finishes, landscaping, etc.:
The floors throughout the main and second floors are finished with tile that include pre-consumer recycled content. Paint used is all low-VOC, and the countertops are GREENGUARD certified for low VOC. For water conservation, the toilets are low-flow dual flush toilets and the plumbing fixtures meet EPA WaterSense® criteria.
Exterior lighting is all full cut-off to prevent night time light pollution

Any additional comments on the project:
It has been a mild autumn, but to date the homeowners have rarely turned on the heating system. With a tight envelope and super insulated walls, the home easily maintains comfortable temperature levels throughout the day and night. The home was built on an urban infill site, that made storage of materials a challenge; however the home is in an established neighborhood, with mature trees, easy access to transit, and local restaurant, retail, and cultural amenities nearby

Click on a photo to enlarge.

Builder Information

Justin Geissler4800 Happy Canyon Rd
Denver, CO 80237

Phone: 720-391-9795

Panels manufactured by Big Sky R-Control.

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