If your home is cold and drafty in the winter with sky-high energy bills, then hot and sticky in the summer, it’s time to re-insulate. Maybe you would like your home to be more sound proof, expand your living space into your lower level, or turn your garage into a more comfortable workshop; then you need to add insulation.
Unless your home was specially constructed for energy efficiency, you can usually reduce your energy bills by adding more insulation. Many older homes have less insulation than homes built today, but adding insulation to a newer home may also pay for itself within a few years.
Adding more insulation where you already have some, such as in an attic, will save energy. You can save even greater amounts of energy if you install insulation into places in your home that have never been insulated, such as an uninsulated floor over a garage or crawlspace, or a wall that separates a room from the attic.
1. In unfinished attic spaces, insulate between and over the floor joists to seal off living spaces below
1A. Attic access door
2. In finished attic rooms with or without dormer, insulate...
2A. Between the studs of "knee" walls;
2B Between the studs and rafters of ext
2C Ceilings with cold spaces above;
2D Extend the insulation into joist space to reduce air flows.
3. All exterior walls, including...
3A. Walls between living spaces and unheated garages, shed roofs, or storage areas;
3B. Foundation walls above ground level;
3C. Foundation walls in heated basements, full wall either interior or exterior
4. Floors above cold spaces, such as vented crawl spaces and unheated garages. Also insulate…
4A. Any portion of the floor in a room that is cantilevered beyond the exterior wall below.
4B. Slab floors built directly on the ground.
4C. As an alternative to floor insulation, foundation walls of unvented crawl spaces.
4D. Extend insulation into joist space to reduce air flow.
5. Rim joists.
6. Replacement or storm windows and caulk and seal around all the windows and doors.