Page 7 - metal-experts-binder

Introduction
Date Issued: November 6, 2020

Glossary

Caulk: To fill a joint with mastic, butyl or equivalent cements to prevent leaks.

Chalk Line: Used for alignment purpose this is a line made on the roof snapping a taut string or cord
dusted with chalk.

Closure: Foam or Acrylic closure strip or roll to close the gap between the profile of the roofing
panel(s) and deck or trims to prevent weather, debris and insects/animals from entry to the building.

Cricket: A peaked saddle constructed at the back of a chimney to prevent the accumulation of snow
and ice and to deflect water around the chimney.

Deck: Also know as decking. The surface installed over the supporting framing members of a building.
It is the structural skin over a roof to which roofing is applied. Most new homes have “decking” made
of plywood. There are two main types of decking commonly used:
• Plywood is strong, durable and light. Use only exterior grade plywood for decking. The thickness
of the plywood depends on the spacing of the rafters. The most common thickness used is 1/2”.
• Oriented Strand Board (OSB) is more economical than plywood but not as strong as plywood
and does not hold screws as well as plywood. One side has a slip resistant coating and should be
placed facing up.

Dormer: A framed window unit projecting through the sloping plane of the roof.

Drip Edge: A flashing used along the eaves and rakes to allow water run-off to drip clear of
underlying construction.

Eaves: The horizontal lower edge of a sloped roof. Trim that goes on these areas may be referred to as
“eave trim” – “eave flashing” – or sometimes “drip edge”.

End-Lap: Where one panel or flashing ends and the other begins, or the distance in which the panel or
flashing overlap one another to avoid moisture seeping through to the decking.

Felt: A flexible sheet that is saturated with asphalt and used as a protective underlayment - often
referred to as “...the second line of defence”.

Field Cut: Manually cutting with snips, shears or a blade, metal panels or trims to properly fit and
install where the length or angles need to be altered. Field cuts are always required on the panels in
the roof hips, valley’s and gable end treatments.

PRICES SUBJECT TO CHANGE WITHOUT NOTICE Sect. 1 - Pg. 5
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