Highest R Value Insulation

This is an article on house insulation in particular examining the best insulation for a house and we begin with r values and then discuss the types of insulation in four main areas of the house.

Highest r value insulation.

Man with a drill. In the context of building and construction the r value is a measure of how well a two dimensional barrier such as a layer of insulation a window or a complete wall or ceiling resists the conductive flow of heat. For example a wall with 3 fiberglass batting r value of 10 8 11 9 may have an overall r value of nearly 14 because of siding sheathing and drywall. Choosing the right kind of insulation to suit the climate where you live will make all the difference when it comes to enjoying a warmer living environment and the benefit of lower energy bills.

The r value your insulation needs depends on your local climate. Try the r value calculator available through oak ridge. Here are the most common insulation materials listed in order of lowest to highest r value. The r value is the insulation s capacity to stop heat from flowing through it the higher the r value the better the insulation.

The reflective surface of foil insulation takes heat and reflects it back out denying its entry into your premises. At foilboard we create high quality foil insulation with various foilboard r value ratings. The map above shows each region of the u s. Loose fill cellulose is rated between r 3 2 and r 3 9 per inch making it one of the least efficient insulation materials available.

World wide the mathematical. The r value rating is essentially a gauge on how effective the insulation is at preventing heat conduction. Once you find your home s zone on this map you can use the below insulation r value chart to determine. And the department of energy s corresponding climate zone.

R value is the temperature difference per unit of heat flux needed to sustain one unit of heat flux between the warmer surface and colder surface of a barrier under steady state. The best r value insulation for a colder climate will be at least r 29 for an attic or loft and around r 16 for a floor. Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system. High r value insulation is that which blocks heat transfer relatively efficiently compared to other types of insulation.

The r value is a measure of how well an insulation slows down or blocks heat transfer under specific laboratory conditions.