- 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
Is your basement finished? In an unfinished basement, the walls are usually bare concrete, stone, or block. These types of material transfer massive amounts of heat and energy from warm to cold, without providing much heat transfer resistance (R-Value) at all.
Insulating Your (Cold) Minnesota or Wisconsin Basement
One of the most effective ways to insulate a basement is to install a continuous layer of 1.5-3.0 inches of foam board directly to the foundation wall. Foam board can be either Extruded Polystyrene (XPS), which is the blue, purple, or yellow foam board, or foil faced Polyisocyanurate foam.
Foam board is secured to the wall using a compatible foam board adhesive and powder-propelled nails with large plastic heads to keep the foam in place. All seams are taped and sealed, and spray foam sealant is applied to edges. This wall insulation is oftentimes installed before rim joists are foam sealed, so that rim joist foam can lap onto and further seal the wall board.
This uninterrupted layer of foam board creates a monolithic air and moisture barrier around the perimeter, and is not susceptible to moisture damage or rot (as a fiberglass insulated, wood framed wall can be). A treated wood or metal-stud wall can be built inboard of the insulation layer and finished with any variety of materials.
Got questions about the walls in your basement? Get in touch with us to learn more.
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Paul & Ruth A., Hudson, WI
We want to recommend St. Croix Energy Solutions. They Insulated our attic and we are very pleased with the whole experience. Their representative worked with us to design the best options for our house. We are very pleased with their friendly service and professional work! We are now looking forward to our monthly energy bills, excited to see the improvement.