R 19 Insulation Good Attic

If you use the attic for living space you should insulate the ceiling of the attic if not then do the ceiling of the house itself.

R 19 insulation good attic.

Loose fill insulation also known as blown in insulation is made of small clumps of recycled materials such as fiberglass cellulose or mineral wool which is made of natural mineral or metal remnants. The higher the r value the better the thermal performance of the insulation. Floor insulation six inch fiberglass r 19 is recommended in missouri. The higher the r value the more effective the insulation is.

For example if your attic has r 19 insulation and another layer of r 19 insulation is added the insulation will have a value of r 38. You can purchase standard width batts or blankets. Insulation level are specified by r value. For diy attic insulation you ve got two choices.

With the exception of garages the floor joists are spaced every 16 inches or 24 inches. Loose fill or batt the common term for blanket insulation. Rolls of insulation come in a variety of r values where the r stands for resistance to heat flow. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

Otherwise you will have to do some cutting and fitting. The table below shows what levels of insulation are cost effective for different climates and. Department of energy rates r 13 insulation as good for use in walls in southern areas of the country it rates r 19 insulation higher designating it as great that is because r 19 insulation provides more thermal insulation than r 13 does. 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.

While there are additional considerations such as venting and moisture problems to take into account when you insulate under floors the united states department of energy recommends an r 25 rating in cold climates and an r 11 in warmer parts of the country. R 19 and r 21 insulation come in rolls and pieces are stapled in. R value is a measure of insulation s ability to resist heat traveling through it. The r value per inch for different types of insulation varies depending on the.

Fiberglass insulation is used in construction to save energy and protect buildings from the elements. Don t stuff r 30 into a space that just fits r 19 5 1 2 because you will lose efficiently if you do. Both can be added to uninsulated attics or layered over existing material. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

That said use as much as you can. What you want to do is fill the space between the framing members.