What is Passive House. If you visit big shopping mall or corporate office you can see there have security system on their door. It's a official security system. That controls a computer software. It's have special bar code which catch specify people. When you add passive house windows found on
http://www.zolawindows.com/passive-house-windows/ on your home or office location developer team will provide you some bar code card. When you hold on the card on door dome, than the door unlocked. Otherwise the door is looked every time. You must need to buy before installing this feature in our door. If you want you can take a trial period from Zola Windows Dealers.
