- Energy Testing
- Radon Mitigation
- Energy Solutions
- Attic Air Sealing
- Attic Insulation
- Attic Ventilation
- Rim Joists: Insulation and Air Sealing
- Rooms above garages
- Sidewalls (Open & Closed Cavities)
- Sloped & Vaulted Ceilings
- Bathroom Exhaust Fans
- Basement Walls
- Story-and-a-half Homes: Cape Cod, Salt Box, Modified A-Frame, Bungalow
- Crawlspace Moisture Control & Insulation
- Insulation Cantilevered floors
- Ice Dams
- Rebates & Incentives
Overhangs, bump-outs, four season porches, and rooms built over garages all expose their floors to the temperature extremes of the outdoor Minnesota and Wisconsin air. This creates uncomfortable, hard-to-heat spaces above. Often, the insulation installed in these cantilevers has fallen away from the flooring above, creating a leaky air gap and rendering the insulation useless. Thankfully, there are effective ways to improve the insulation value in these areas.
Dense Packing Cantilevered Floors
Cantilevered floors can be dense packed with cellulose or dense packing fiberglass insulation Our team does this by:
Removing a row of siding or soffit material from the exterior
Drilling holes into the floor cavities
Inserting an insulation fill hose in the hole
Densely packing in insulation at high pressure, which results in a fully insulated cavity that won’t slump or shift
After the job, we:
Seal fill holes, as well as any gaps in the sheathing
Replace the siding or soffit
Spray Foam for Cantilevered Floors
In other situations, cantilever floors may be accessible from inside or from below; in these instances, closed cell spray polyurethane foam (SPF) is used to create a permanent air/vapor barrier and insulation layer that brings the cantilevered floor into the conditioned space of the home. Additional insulation (with cellulose or fiberglass) can be added after the space is foam sealed.
Insulation For New Construction and Remodels
In new construction or remodeling situations, these approaches are combined. The SCES team applies a continuous layer of spray foam or rigid foam board, sealed tightly against the warm surface of the floor above. To boost R-Value, we dense pack additional insulation dense packed into the cavity below.
Get in touch to learn more about insulating and sealing your cantilevered floor!
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Marilyn H., Houlton, WI
We used St. Croix Energy Solutions to insulate our rim joists and basement walls. They used foam on the rim joists and insulated two basement walls. They were on time and were very professional. They put up plastic around where they were working as to not contaminate the surroundings. They were very efficient and cleaned up when done. I would recommend them to do any insulation needs you may have.