CASE STUDY Weiss Building & Development LLC, Illinois PRODUCTS USED PROJECT “The Passive House project is really excit- ing. It’s our best project to date because it brings together everything related to green building. With the house so tight, you really have to pay attention to health factors, which we always do – making sure every product is the healthiest choice available.” “Knauf Insulation’s EcoSeal ® really per- forms as a low-

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