Any form of home addition, whether it's a master bedroom addition, second story addition, or even a sunroom addition, is a complex construction project. Sometimes building a room addition is even more difficult than building a small home. The roof line, overhang, gutter board, soffits etc...Sometimes a bedroom addition has a crawl space which needs ventilation to eliminate moisture problems and dampness, so the crawl space should be connected with the crawl space of the existing structure.
There are other things to consider when building a home addition or even a small room addition that never are an issue when you build a new home from scratch. When working on the room addition plans the architect and home contractor must remember to evaluate the heating and cooling system needed for the new bedroom addition or home addition. Extending the existing heating and cooling system into the room addition may not be enough because the furnace and air conditioner were sized accurately for the original house, but they will not provide enough air for the new addition.
There are other things to consider when building a home addition or even a small room addition that never are an issue when you build a new home from scratch. When working on the room addition plans the architect and home contractor must remember to evaluate the heating and cooling system needed for the new bedroom addition or home addition. Extending the existing heating and cooling system into the room addition may not be enough because the furnace and air conditioner were sized accurately for the original house, but they will not provide enough air for the new addition.
