Now that you understand why u factor is a better energy performance indicator lets discuss the details of it.
U factor garage door.
U factor and air infiltration results for clopay commercial sectional doors.
Installed u factor a tested value of actual energy loss whether heat or cold of an installed door wall or window assembly.
Understanding r value rate of heat loss.
The u factor is the measurement of thermal conduction due to heat flow through an installed door system.
U factor measures the rate of heat transfer and is appropriately applied to the thermal efficiency of windows which similar to insulated roll up garage doors are assemblies comprised of multiple components.
U value is the inverse of r value.
Of the two measurements the u factor will give a better representation of the insulating abilities of your fully installed garage door.
Though not used as often as r value u factor is another number you may see when shopping for a garage door.
The thermal performance and energy efficiency of commercial sectional overhead garage doors has become an increasingly more important factor to consider when designing building and maintaining commercial or industrial spaces.
The higher the r value the better the thermal efficiency of the material.
Building codes standards such as those found in leed iecc and ansi ashrae ies standard 90 1 provide guidelines and standards for how sectional overhead doors should be made and how they.
It tells you how effective a particular insulation material such as polyurethane or polystyrene foam is at preventing heat loss.
A high garage door u factor means that your garage door transfers heat easily.
U factor will vary between 0 66 and 1 00 depending on finish and color selection.
The lower the number the lower the energy loss and therefore the better the thermal performance.
R value is the most common measurement for insulation in garage doors.