A homeowner in Herndon, VA wanted to reduce the chances of mold and humidity in their crawl space area. This crawl space was vented, like most homes in our area, and the vents let warm humid air in which is cooled by the subterranean crawl space. This causes relative humidity to go way up and condensation to form all over the crawl space surfaces including floor joists and ducts. Then mold can grow, wood will rot, and musty odors can appear. To address this, Comfenergy sealed up the vents and a dimpled plastic drainage matting is installed on the floor to create a thermal break. A heavy duty liner, CleanSpace, is installed across the floor over the matting and up the walls. Finally closed cell spray foam is installed on the walls to the top of the rim joist.
This Jeffersonton, VA homeowner has suffered from high humidity in the basement of their home for years. The basement is attached to a low ceiling crawl space built on a slab. The high humidity is typically caused by:
1. Drainage of ground water from outside.
2. Hydrostatic water table pressure coming up from below.
3. Hot/humid air coming into the basement and hitting cold surfaces.
These before and after photos show how Comfenergy solved the humidity issue. A perimeter drainage system was installed in the slab around the perimeter of the crawl space. CleanSpace (20 mil) vapor barrier is tucked behind the perimeter drain. Then Thermax foam wall panels are installed to provide the proper air sealing and insulation value. Thermax also provides a thermal barrier for fire protection and meet codes.
Now the basement and crawl space are nice and dry!
This Middletown, VA homeonwer was complaining that their top floor was cold and drafty in the winter. Upon a full comfort and energy evaluation by Comfenergy, we determined one of the issues to be leaky can lights in the ceiling. Each can light is merely a 6" diameter hole that allows heated air to escape, and cold drafts in during the winter.
Rock wool can light covers lessen this leakage and also provide a necessary thermal and ignition barrier from the hot can light to protect against the possibility of fires.
This Boston, VA homeowner had issues staying warm in the winter and cool in the summer. A FREE comfort evaluation by Comfenergy revealed, among other things, an HVAC ducting system located in the attic that was both leaky and not insulated. The hot air was leaking into the attic in the winter. The cold air was becoming re-heated in the summer. Not only was this causing discomfort, but it was making their utility bills go literally through the roof!!
Comfenergy encapsulated the attic ducting system to seal it from those air leaks. This keeps all of their air in the home! It also insulates the air travelling through the ducting system so that it comes out of the vents at the right temperature to stay comfortable.