Yes some Lowes sell kits but don't bother, waste of time and money. The price has came down significantly in the last few years and you can usually find a contractor to do it for a responsible cost (atleast you don't die with disgust) . I last winter was on a project that was a pole bldg. 140' by 140' with roof trusses you can imagine the height! The ceiling sheathing was spray foamed along with the walls. So the entire attic was conditioned space. We had a standard residential electric furnace running in one corner during final construction. It cycled on and off and kept the entire bldg. no matter where you was at within a few degrees of set point. I was amazed. We are presently doing another bldg. much smaller but similar construction and similar spray foam. Using a SMALL electric furnace to keep it toasty warm with just plastic stapled over the windows at the present.
Like I said I built my own super insulated home 30 years ago with TWO 2' x 4" walls spaced 5 1'2" apart filled with fiberglass insulation. Trusses were Low E trusses so I could install a full 12" insulation over the entire wall tops. I love my home and heat and cool all year for what most would pay in a month of utilities. With that said now after first hand experience I build with 2 by 6 (maybe even 2 by 4) and spray foam to include the attic and conditioned space.
Like I said I built my own super insulated home 30 years ago with TWO 2' x 4" walls spaced 5 1'2" apart filled with fiberglass insulation. Trusses were Low E trusses so I could install a full 12" insulation over the entire wall tops. I love my home and heat and cool all year for what most would pay in a month of utilities. With that said now after first hand experience I build with 2 by 6 (maybe even 2 by 4) and spray foam to include the attic and conditioned space.
