Spray Foam Insulation in Rochester, MN

Two-pound closed-cell or half-pound open-cell, sprayed to the roof deck, rim joist, or a wall cavity. Closed-cell adds a vapor retarder and more R-value per inch. Open-cell fills odd bays and stays vapor-open. Both air-seal as they expand. That is the part that actually changes how the room feels after a Minnesota winter.

Rochester homes often call for foam at the rim joist, a cold kneewall, or a roof deck when the attic is moving into the conditioned envelope. We look at substrate temperature, access, and how the house is leaking air before picking open-cell, closed-cell, or a mix.

DIY kits are a different product than a sprayed assembly. Mix ratio and thickness get checked on site so the foam matches the estimate, not a bag count.