high performance

Roxul installation complete on a passive house built by TDS Design Build in McFarland, Wisconsin

The Wall and Roof Systems

The walls of this house are 2×8 construction with dense-pack cellulose insulation (R-27), ZIP sheathing for the air barrier and 6” Roxul insulation (R-24) for a total insulation value of R-43.

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Bright, empty room with large windows, bare floors, and unfinished walls, overlooking a snowy landscape outside.

Passive House on Mud Lake

Here at TDS, we have a history of providing remodels and additions to clients that are more durable, environmentally-sensitive and healthy than conventional construction.

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