Do You Add R19 And R30 Insulation For Attic

If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs.

Do you add r19 and r30 insulation for attic.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. What are the dimensions of the space and style of house and source of heat and a c. You can add loose fill on top of fiberglass batts or blankets and vice. Adding more insulation is almost always a good long term investment but before i would trust a sales.

When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new siding and. However you do it we get a similar graph of cumulative heat flow reduction as our first graph above.

You could also build thicker walls or add exterior insulation or both with the result of higher r values. Before you even price out the work i would recommend familiarizing yourself with all of the related attic prep work. What kind of insulation do you currently have installed there now. Click the button to calculate the depth in inches and pounds of total insulation required for this job.

If you re framing with 2x4s you could go with a higher density insulation and get r 13 in the same space. Square feet of house or area to be insulated current and desired r value for insulation and type and cost of your energy. Adding more insulation to your r30 is not a bad idea however i have a few questions for you. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.

Add the right kind of insulation. Wall insulation whenever exterior siding is removed on an. Input length width and desired r value of the area to be insulated. To choose the best insulation for your home from the many types of insulation on the market you ll need to know where you want or need to install the insulation and what r value you want the installation to achieve.

Other considerations may include indoor air quality impacts life cycle costs recycled content embodied energy and ease of installation especially if you plan to do the. This calculator is to be used as an estimating tool only.