Areas in your home that need to be well insulated include the attic, walls, crawl space and basements.
Before installing any new insulation get an inspection by a licensed insulation contractor or check with your local building code for R-value recommendations and any vapor barrier requirements that apply to your area. Insulation R-Values varies by location, it is important to know the R-Value required in your area before commencing the installation.
In crawlspaces and basements, make sure there are no cracks in the foundation, if there are any cracks the best way to seal them would be using mortar mix. There is no getting around it: If your house is in a cold climate, keeping it warm in winter is expensive. The Department of Energy estimates that a properly insulated attic can shave 10 to 50 percent off your heating bill. It works the opposite way for warm climates; in summer, it helps stabilize your house’s indoor temps to keep cooling needs in check.
There are a variety of insulation materials that can be use such as fiberglass, cellulose, rock wool, polyurethane foam, etc. Insulation comes in different forms such as loose fill, batted and hard foam. Before installing insulation, it is recommended to seal any gaps with hard foam that allow unconditioned air into the space that you are insulating. Areas that need more attention would be around light fixtures, plumbing tubes, electrical wires, ductwork etc. Choosing the right type of insulation for your home can be difficult since there are many different insulation types. Some insulation options would be, loose-fill-fiberglass, cellulose, fiberglass-batt insulation, rockwool, denim-insulation, spray-foam insulation, etc.
The crawl space is an area of the home that is easily forgotten, and most people never think of it until something goes wrong. Paying special attention to your crawl spaces does help your house to run as efficiently as possible, and it helps the structure of your home to last a long time.
There is always the possibility that rodents could move into your crawl space and cause extensive damage to electrical wiring, plumbing soft tubes, enter the heating and cooling ducting, nest in your insulation and/or leave rodent waste in your crawl space.
Rodents by nature follow their on scents, they mark their territories by defecating, urinating, and nesting in the crawl space. It is important to remove any nesting, rodent droppings and to disinfect any urine to kill any bacteria and scent left by rodents to prevent them from coming back.