Air Changes Per Hour
Air Changes in all homes and that’s a good thing. Air leaks through door and window frames, outlets and switches on exterior walls, attic hatches and basically anything that protrudes from the inside to the outside through exterior walls, attics and crawl spaces. As the the air escapes new fresh air comes in which keep us and […]
Air Barriers Installation
Air barriers protect outside air from leaking into the building’ thermal envelope or air leakage from escaping the building. Although its impossible to completely protect air from entering a building and some air leakage is healthy we do want to keep air changes to an acceptable amount. Air barriers include building materials such as Tyvek and Zip Board. It […]
Air Leakage in A Home
All homes leak air and when the air leaks new air enters the building to replace the leaked air. It’s not necessarily bad to leak some air so that newer fresher air can be replaced. However, each time the new air enters the building it needs to be reheated or cooled resulting in energy consumption. […]
Air Barrier & Insulation Checklist
Philadelphia now requires a 3rd party inspection to verify that the building air barrier and insulation has been installed properly and according to the codes. Local Energy Audits routinely perform these types of inspections. We recommend you go through the checklist below and make sure the building meets the requirements. I have included an image of […]