Polyurethane garage door insulation provides thermal efficiency 9 31 r value.
Insulated garage doors u value.
Although your door s insulation is the biggest factor in saving energy here are a few other tips to keep in mind.
It also has the important advantage of measuring the thermal efficiency of the door itself.
Model 5740 17 5 r value.
Unlike r values lower numbers are considered more efficient.
Steel garage doors insulated or non insulated.
What is the standard r value for a garage door.
U value is the inverse of r value.
Here is a brief definition of each.
U factor of a rolling door.
These doors are usually constructed from steel with pu foam insulation.
The same properties that improve thermal efficiency also give polyurethane insulation excellent acoustic properties.
Classic steel model 8500 has the highest level of garage door insulation for our residential doors with an r value of 16 22.
The shocking reality of r value vs.
R value measures the rate of heat loss but u value measures the rate of heat transfer.
Installed u factor a tested value of actual energy loss whether heat or cold of an installed door wall or window assembly.
Thermacore construction provides a continuous layer of foamed in place cfc free polyurethane garage door insulation sandwiched between two layers of corrosion resistant steel for maximum thermal efficiency.
R value a garage door s r value represents its ability to slow the transmission of heat.
Generally these will offer the highest levels of insulation when installed fully behind a garages structural opening and will usually provide a u value of between 1 4 and 2 w m k when fitted.
R value may seem like a pretty straightforward measurement to determine the quality and energy performance of insulated roll up garage doors but that is not always the case.
Other factors that affect the energy efficiency of a garage door.
If you are shopping for a garage door with insulation you may see a few different numbers provided that measure the effectiveness of the insulation.
U factor will vary between 0 66 and 1 00 depending on finish and color selection.
An insulated garage door can significantly reduce the intrusion of street noise into the home especially important when there are bedroom or other living areas above or adjacent to the garage.
For best u factor choose finish and color with high solar reflectance bright colors.
The thermal resistance value of a garage door doesn t mean much if the door isn t equipped with effective thermal breaks and suitable weatherstripping around and between the door sections.
U value is less commonly used by manufacturers.
It is composed of chemicals which when combined expand to fill the space given.
Comparing insulated garage doors.
Unfortunately the r value is often misunderstood and given more credit than it deserves.
Model 5720 12 76 r value.
Garage door insulation is of limited value anyway given the other areas of the garage that are equally problematic in terms of heat loss.
The lower the number the lower the energy loss and therefore the better the thermal performance.