Hollow Metal Door U Value

Reference table for u values u value is the coefficient of transmission i e the transmission of heat through the materials which compose the building s envelope or outer shell.

Hollow metal door u value. All doors are tested in accordance with astm c1363 and sdi 113. Ceco door a leading manufacturer of steel and hollow metal doors and frames composite and commercial doors. U factor 0 34 r value 2 9 including insulated door thermal break frame and threshold. We provide energy efficient solutions with thermal break frames decorative openings with madera and sound control with sound tech xpress.

The first level of insulated door core is the polystyrene which is a slab of foam that is placed in the core of the door. U value has an inverse relationship to r value. The insulation value is much. A result of the strength and durability of steel is that metal doors have the lowest total cost of ownership.

What is the best r value for windows and doors. B18 series steel stiffeners u factor 0 50 r value 2 01. Door assembly operable u factor and r value ratings. L18 series per astm c1363 r factor 1 80 u factor 56.

Improved education and awareness of the cost of heating and cooling that escapes from poorly insulated components and glass panes have led to window and door manufacturers developing energy efficient windows and doors typically labeled r5 u 2 meaning the glass is the most energy efficient possible at a 5 rating and the window or door with all. Hollow metal doors are shown to have superior performance for strength and durability compared to the alternate materials. Hollow metal doors with this core type are most often used at exterior openings and can be fire rated up to 3 hours. Hollow metal door series core frame test methodology astm c1363 operable astm c518 calculated astm c1363 sealed in place u factor r value u factor r value u factor r value trio e polyurethane steel stiffened tb 0 29 3 4 0 09 11 0 n a n a trio e polyurethane steel stiffened kerf 0 36 2 7 0 09 11 0 n a n a.

Provide exterior hollow metal doors and frames as complete and tested assemblies including approved hardware specified under section 087100 door hardware to meet the wind loads. While this remains the industry standard we are seeing more specs. 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. One of the lowest operable u factor in the industry for a steel stiffened door u factor 36 first steel stiffened hollow metal swinging door to qualify for greenguard gold.

Hurricane rated up to 100 psf 3 0 x 7 0 single and up to 70 psf 8 0 x 8 0 pairs.