Why Houses Rot

There is a reason why homes old and new rot. It starts from the inside and can usually be traced to faulty insulation/ventilation planning.

"As we strive to make houses that have tighter envelopes with less air infiltration and that are more efficient, as we strive to build houses that put less demand on HVAC systems, as we strive to build houses that cost less to live in and put less demand on the earth's resources, and as we strive to create houses that are built green, we put more demand on our building systems and reduce our acceptable margin of error."