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Glossary

ACM
Aluminum Composite Material (ACM), a.k.a. Metal Composite Material (MCM). Industry term for the resulting panel made by laminating two sheets of aluminum to a substrate/core.
Acrylic Urethane
Type of finish offered on exterior metal panel systems. A two component, cross-linked architectural paint system that provides excellent gloss retention and weatherability. This coating is applied using electrostatic or conventional spray equipment.
Anodized
Type of finish offered on exterior metal panel systems. The finish is created by using a combination of electricity and chemicals to develop the natural oxidation process. The result is a durable, transparent surface that is integral with the aluminum sheet.
Barrier Wall
Cladding system designed to be completely sealed against moisture intrusion. Protects the substructure of the wall and sheathing.  
Block Sizes
Units of measure generally used in glazing applications where the actual dimension of the glass (or panel) is rounded up to the next even number (i.e. if the actual panel size needed is 31 ¼” wide and 40 ½” long, the block size for that panel would be 32” x 42”).  
BOCA
Governing code body, stands for Building Officials & Code Administrators, Inc.  
Cavity Wall
Type of wall system in which a small gap is created between the exterior cladding and the substructure of the building. This small ‘cavity’ allows for the escape of any incidental moisture which may enter the system. Use of this type of system requires a moisture barrier.  
Cleanroom
A type of controlled environment where air and contaminants (i.e. dust, dirt) are highly monitored. Most often manufacturing facilities in the pharmaceutical, medical, or communications industries.   
Climaseal
A coating used on some types of screws to increase the holding performance and durability of the fastener.  
Factory Curved
A process in which panels (or moldings) are moved through a system of rollers staggered to create a slight curve with each pass. Tight curves may require several passes through the setup.
FDA
Food & Drug Administration- regulates the types of materials that can be used in conjunction with food preparation areas. Some interior wall panels may be approved for ‘incidental contact’.  
Field Curved
A process in which the panels may be gently molded around a curve, using the substrate or moldings as a guide. This process is only available for large radius curves with some panels and is completely dependent upon the flexibility of the material. May require ‘kerfing’ of the core.  
Fire Resistant
Not to be confused with ‘fire-rated’. If a panel is fire resistant, it simply means it contains material that will reduce the effect that heat will have upon the composition (i.e. gypsum board core).
FRP
Fiberglass Reinforced Plastic is made from fiber glass reinforcement in a plastic (or polymer) matrix. Used in sheet form as durable, and washable skins for interior panels.  
HDPE
High Density Polypropylene is a plastic polymer in rigid sheet form and is generally used for the skins of interior panels.  
HiLo Screw
Type of screw used to fasten into wood substrates. Named for its cut patter, the alternating ‘high’ and ‘low’ teeth provide a strong grasp within the substrate.  
HUD
U.S. Department of Housing & Urban Development.  
ICBO
Governing code body; stands for International Conference of Building Officials.  
ICC
Governing code body; stands for International Code Council. Established to develop a single set of comprehensive and coordinated construction codes. Founders include BOCA, ICBO, and SBCCI code bodies.  
Kerf Loss
Refers to the amount of material (equal to the thickness of the saw blade) that is lost when the panel is cut (i.e. if the thickness of the blade is 1/8”, the resulting pieces from a 48” wide panel cut in half will measure approximately 23 15/16”).  
Kynar 500
Type of finish offered on exterior metal panel systems. A proven fluorocarbon coating recognized as providing unsurpassed performance in color retention, film erosion, and chemical resistance. This paint system is also available in metallics and provides superior weatherability.  
Non-Progressive
Refers to the type of installation sequence. A non-progressive installation may be started and stopped at any point making the replacement and/or removal of individual panels more accessible.  
OSB
Oriented Strand Board is a wood panel manufactured from waterproof, heat-cured adhesives and rectangularly shaped wood strands arranged in cross oriented layers.  
Parapet
Top section of the wall that extends past the roof line. The cladding is typically ‘wrapped’ around the wall section or terminated at the top with flashing installed as a cap.  
Polyester
Type of finish offered on exterior metal panel systems. A thermosetting paint applied using similar techniques as those used for PVDF (polyvinylidene fluoride) creating a hard, durable surface that is available in a wide range of colors.  
Polypropylene
Type of plastic formed into sheets and generally used as a lightweight substrate or core for laminated panels. Sheets have a ‘fluted’ design to provide the appropriate thickness while minimizing the weight of the material.  
Porcelain Enamel
Type of finish available on select products. A vitreous or glassy inorganic coating bonded to metal by fusion at extremely high temperatures.  
Progressive
Refers to the type of installation sequence. A progressive installation builds from one step to the next to move across the elevation. Each step must be completed before moving on to the next.  
PVC
Polyvinylidene Chloride is a rigid copolymer that is highly impermeable to water vapor and is used for various types of molding extrusions.
Rainscreen Principle
Type of wall system, a.k.a. ‘cavity wall’, which allows incidental moisture to enter the system, but then be drained away from the substructure. Use of this type of cladding system requires that the substrate be covered with a moisture barrier.
SBCCI
Governing code body; stands for Southern Building Code Congress International
Thermoset Phenolic Resin
Type of hard polymer used as a substrate material and made by impregnating kraft paper with a resin and then cured with heat. The resulting material is extremely durable, impact resistant, and thermally stable.  
Type-X Gypsum
Used as a stabilizer/substrate, this type of gypsum is manufactured to provide an extra degree of fire protection when used within a panel assembly.  
USDA
United States Department of Agriculture; regulates the types of materials that can be used in conjunction with food preparation areas. Some interior panels may be approved for ‘incidental contact’.