April 13, 2018
April 17, 2018
I wonder how long it’s been since a commercial building in North America had windows that opened? I remember windows sealed shut way back in the 70s. The reason given was the heating and air conditioning systems.
I wonder how long it’s been since a commercial building in North America had windows that opened? I remember windows sealed shut way back in the 70s. The reason given was the heating and air conditioning systems.