Common Industry Terms
Radius – The radius of a circle is the distance from the center point to the
edge of the circle or roof. It is half the length of the diameter.
Reglet – A horizontal masonry saw cut or raked mortar joint used to attach
sheet metal counter flashing, sometimes referred to as a receiver (See
Counter Flashing, 1-piece or 2-piece).
Scupper – An opening in the side of a wall or sheet metal edge detail that
allows water to drain from the roof surface. Overflow scuppers are used as
a secondary drainage method in case of "interior drain" blockage. Spill-out
scuppers allow water to run directly over the edge of a building onto another
roof level or the ground. A downspout scupper (sometimes referred to as a
collector or conductor head) channels water into a downspout that carries
rain water to the ground or to a lower roof level.
Snap Cleat – A formed aluminum or galvanized steel attachment clip used
for securing 10' coping sections to the top of a parapet wall or curb.
Splice Plates – Formed metal pieces usually 6˝ wide that are installed
underneath the joints of gravel stops, copings, gutters, and counter flashings
when a lap joint is not used. Splice plates provide a more aestheticallypleasing
appearance than cover plates (joint splices).
T-Miter – A steel or aluminum sheet metal product that is used at the intersection
of two parapet walls, where one wall terminates perpendicularly into a continuous
second wall.
Thermal Movement – The degree of expansion and contraction that materials
will allow due to a change in temperature. Thermal movement varies considerably
between different building materials. Natural materials such as stone,
timber, and brick have low thermal movement. Most metals have a medium
degree of movement and require careful joining. Plastic materials have a
high degree of thermal movement.
Transition Miter – A steel or aluminum sheet metal product utilized at the
junction (corner) of two parapet walls of different wall thicknesses.
Treated Wood – Wood planks used as wood nailers that are pressuretreated
with chemical preservatives for enhanced weatherability against
wood decay and insect damage.
Vinyl Masking or Protective Film – A removable plastic film applied for
protection during fabrication, shipping, and installation of various sheet metal
products. This film must be removed immediately before product installation.
Introduction 800-248-0280
www.exceptionalmetals.com
12
To view a Ceros magazine you need to have JavaScript enabled in your browser and have the flash player 8 or higher installed. To install the latest flash player, click the icon above, install the flash plugin and then click here to refresh this page.