Insulation Efficient Roof Form

Methodology for estimated energy savings from cost effective air sealing and insulating.

Insulation efficient roof form.

Epa estimates that homeowners can save an average of 15 on heating and cooling costs or an average of 11 on total energy costs by air sealing their homes and adding insulation in attics floors over crawl spaces and accessible basement rim joists. You can claim back 10 of the cost up to a maximum of 500. Insulation and air barrier are applied directly to the underside of the roof deck are common in applications where designers are seeking cost effective and energy efficient roof assemblies. The second part of the credit isn t a percentage of the cost but it does include the installation costs of some high efficiency heating and air conditioning systems water.

Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away. For example energy efficient exterior windows and doors certain roofs and added insulation all qualify but costs associated with the installation weren t included. Consider using spray foam insulation as well to seal smaller cracks and gaps. Insulating boards are just one of the many types of foam insulation.

You could even buy insulation and floor boards that are already bonded together which makes the job much faster and easier. For the same reason insulation shouldn t touch the roof s underside. Low slope and steep slope unvented roof systems i e. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow.

The panels provide a continuous energy efficient surface. To increase the thickness of your roof insulation layer you can. Foams are highly susceptible to mechanical moisture and uv damage and rely on a protective coating. If you re starting from scratch and building a home then using insulated concrete forms which is literally building the insulation into your home s structure is the way to go for maximum efficiency.

Metal roofs with pigmented coatings and asphalt roofs with cooling granules will qualify for this. The studs conduct more heat than the insulation between them. This eliminates thermal bridging which is the energy lost through wall studs. Asphalt and metal roofs.

Components such as a roof s decking or rafters that serve only a roofing or structural function do not qualify for the credit. Lay mineral wool between the joists and then fit rigid insulation boards across the joists with floorboards on top. However if you re remodeling an existing home spray foam is probably the best option for maximum energy efficiency.