This tool provides some of the most common options on windows and doors and related nfrc certified values.
Sliding doors r values.
Low e smartsun windows and doors feature the best heat insulation of all andersen products with u factors ranging from 0 24 to 0 25.
Special values 1543 door configuration.
Doors are a little different.
If installed correctly and not bent this type of door needs no further weatherstripping.
Low e smartsun glass is only available on certain 400 series windows and on architectural windows and doors.
Set your store to see.
Exterior doors excluding sliding glass doors calculate glass area of door as window wood door r value 1 1 2 no storm door 2 7 1 1 2 with 1 storm door 4 3 1 2 3 solid core door 3 1 steel with foam core door r value 1 3 4 pella 13 3 4 therma tru 16 roof ceiling material r value no insulation 3 3 3 1 2 fiberglass 13.
Energy performance data for select combinations of options is available in table format on each product page.
Finished 363 painted.
Many doors don t have any glass like your front door but even doors with lots of glass like a sliding patio door have lower glass to frame ratios than windows or skylights.
The r values of most steel and fiberglass clad entry doors range from r 5 to r 6 excluding a window.
This means doors can provide more insulation than a window or skylight can.
R values climb as thickness of the material increases.
A 2 1 4 inch solid core wooden door for example has an r value of 3 70.
American craftsman 72 in.
Reliabilt 60 in x 80 in clear glass white vinyl universal reversible double door sliding patio door.
Double door 1061 single door 797 review rating.
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.
Pella 72 in x 80 in blinds between the glass white vinyl left hand sliding double door sliding patio door.
The r value of a 1 3 4 inch wood door is 3 03.
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.
To access those tables select the individual product of interest and scroll down to the professional resources section.
Here is a simple chart to help understand how r value is calculated for windows and doors.