Belly

The material placed on top of the floor joists may be plywood, Oriented Strand Board (OSB) or particle board. In any case the joists have glue spread on them and then the 4′ x 8′ panels of sub flooring are nailed in place. At the time the sub floor goes down the bottom of the…

An airtight belly is very important in heat and cooling efficiency and in preventing water lines from freezing in cold weather. However, it is penetrated by the drain, supply and electrical and gas lines. These openings may or may not have been sealed properly. In addition the belly may have been damaged during transport and…