Exterior Wood Door R Value

The higher the r value of the energy efficient entry door the better the insulation.

Exterior wood door r value.

This is a huge difference and essentially comes down to astm c518 being a theoretical maximum based on a steady state thermal test of only a portion of the door panel. In new homes especially in cold climates in very energy efficient buildings. R values climb as thickness of the material increases. Whether used as a front door or on the patio your simpson.

Discover the difference of an exterior door from simpson. Rustica s french style sliding barn doors entry doors and rustica s replacement windows have the most efficient r value on the market listed at 3 94 for interior doors and replacement windows and 5 31 for a 2 1 4 exterior door. Welcome even more beauty and quality to your home with our comprehensive collection of exterior wood doors. As the first and last impression made on visitors to your home your front door is a symbol of your creativity and style.

For example the typical r value of a six panel wood door is a two whereas a fiberglass door system may have an r value of 10 or 12. Below is a list of our garage doors and the r value of each one. The r values of most steel and fiberglass clad entry doors range from r 5 to r 6 excluding a window. For example a 1 1 2 inch 3 81 cm thick door without a window offers more than five times the insulating value of a solid wood door of the same size.

Many of these doors are remarkably like real wood and may have a thick polyurethane or other foam core a feature that boosts their insulating value. The r value of a 1 3 4 inch wood door is 3 03. Look for a door with a good insulation value say a u value of at least 0 2 that is r 5 metric. For example a building with material with an r value of r 11 converts to an u value of 0 09 1 r or 1 11 0 09.

For comparison with. A 2 1 4 inch solid core wooden door for example has an r value of 3 70. The r value which is a measure of thermal resistance.