But in this case, it involved splurging on a $2,000 cat door ... passive house, Shawn Barr, with Naikoon Contracting, the company building the home, said few builders are certified for this type of ...

Once closed, the doors form a draught-free seal that conforms to Passive House standards for thermal exclusion. Petwalk also offers a range of sophisticated extras. The people at the Austrian ...