Rigid Insulation R Value Per Thickness

Also called styrofoam insulation this is the least expensive material.

Rigid insulation r value per thickness.

The r value at 180 day real. Rigid insulation r value by comparison usually ranges from r 4 0 to 6 5 and may get as high as r 8 7 depending on the insulation material. It provides r values that range from 3 6 to 4 2 per inch. 1 844 446 7858 my account.

For example a wall with 3 fiberglass batting r value of 10 8. Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and an inch of blown cellulose in an attic has an r value of 3 2 3 7. Typically a higher insulation r rating means better climate control and better energy efficiency for your home.

Easily recognized by its blue green or pink color xps falls in the middle of the three types of rigid foam insulation in both cost and r value about r 5 per inch. Some products have reinforced facing to make them sturdier. Thickness inches r value in i p imperial rsi r value in metric 0 5. Falls in the middle of the three types of rigid foam insulation in both cost and r value used most in walls or below grade applications recyclable and at about r 5 per inch costs around 42 per sq.

Conditioned per atsm c1289 test method astm c518 1 2. R value chart for enerfoil tm rigid foam faced insulation. Choose this option for areas that need a good amount of strength and water resistance. The importance of insulation thickness.

It provides about r 5 per inch. Traditional loose fill insulation such as fiberglass or cellulose has an r value between r 2 0 and 3 5 per inch of thickness. It takes into account the. A higher insulation r value usually means a higher price point as well.

The r value for foamular xps insulation is provided from testing at two mean temperatures 40ºf and 75ºf and from two aging conditioning techniques 180 day realtime aged as mandated by astm c578 and a method of accelerated aging sometimes called long term thermal resistance lttr per can ulc s770 03. For a 1 in thick 4 8 panel comes unfaced or with a number of different plastic facings. R value isn t just a time measurement though. Unfaced 1 in thick xps has a perm rating of around 1 making it semipermeable.

Rigid insulation is usually made up of fibrous materials or plastic foams.