AA™250/425 Thermal Entrances

2-1/2" (63.5mm) or 4-1/4" (108mm) sightline
2-1/4" (57.2mm) depth
High thermal performance
Blast mitigation, hurricane resistance
Moderate traffic applications

To achieve new heights of thermal performance, Kawneer pulled out all the stops in engineering the AA®250 and AA®425 doors. In addition to thermal breaks, Kawneer has added its proven corner construction, which has four Sigma deep penetration and fillet welds, plus mechanical fastening at each corner.

The immediate door frame jambs and transom bar/door header tout a dual perimeter weather seal featuring Kawneer's Sealair bulb weathering. Also featured is a triple-finned, soft pile weather stripping that minimizes airflow around the perimeter edge of the door. At the bottom of the door, the combination of a thermally broken threshold and dual bottom door sweeps minimizes air infiltration. All of this adds up to a superior thermal roadblock that provides improved comfort and savings in heating and cooling costs.

» Learn more about AA™250/425 Thermal Entrances

Key Features include
AA™250 narrow stile has 2-1/2" vertical stiles, 2-1/2" top rail, and 3-7/8" bottom rail
AA™425 wide stile has 4-1/4" vertical stiles, 4-1/4" top rail, and 6-1/2" bottom rail
Door is 2-1/4" deep
Door has 1/8" typical wall thickness
Dual welded corner construction
Single acting
Offset pivots, butt hinges or continuous geared hinge
Surface mounted or concealed closers
MS locks or exit device hardware
Architects Classic push/pulls
1" insulated glass infill
Meeting stile astragal has dual pile weathering with polymeric fin
Sealair bulb polymeric weatherstripping and pile weathering with polymeric fin in door frame
Permanodic™ anodized finishes in seven choices
Painted finishes in standard and custom choices

Optional Features
Numerous push/pull finishes
Variety of top, bottom, and cross rails
Two color finish capability

Product Applications
AA™250 - engineered for thermal efficiency in moderate traffic applications such as offices, stores, and apartment buildings
AA™425 - engineered for thermal efficiency and added strength for schools, institutions and other increased traffic applications

Environmental Features
Recycled Content (pre/post mixed): average 50%
Recyclable: Yes
Sound Tranmission Class: 32.0
Reduces Solar Heat Gain: Yes
Contribures to daylighting: Yes
U-Value: 0.45
Solar Heat Gain Coefficient: 0.16
Visable Transmittance: 0.40
Environmental Product Declaration (EPD) Type III Product Specific: Yes

U-Factor, SHGC, VT and STC values are calculated using commercially available high performance glass. Please consult the glass manufacturer for actual values for your project.

Recycled content used is an average. Recycled content may range from 25-100%.