Insulation Contractors rockford IL

Where to put insulation in your home. 

Insulation should be added in many different areas.
The simple rule of thumb to follow is to insulate components that are adjacent to the outside or intentionally unheated areas. 

1. In unfinished attic spaces, insulate between and over the floor joists to seal off living spaces below.*
- attic access door

2. In finished attic rooms with or without dormer, insulate:
- between the studs of "knee" walls;
- between the studs and rafters of exterior walls and roof;
- ceilings with cold spaces above;
- extend insulation into joist space to reduce air flows.

3. All exterior walls, including:
- walls between living spaces and unheated garages, shed roofs, or storage areas;
- 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:
- any portion of the floor in a room that is cantilevered beyond the exterior wall below; slab floors built directly on the ground;** as an alternative to floor insulation, foundation walls of unvented crawl spaces; extend insulation into joist space to reduce air flows.

5. Rim joists.