(1) A steep-sloped roof located at the perimeter of a building and usually used for decorative purposes. (2) The upper story formed by the lower slope of a mansard roof.

(also called a French roof) is a four-sided gambrel-style hip roof characterized by two slopes on each of its sides with the lower slope at a steeper angle than the upper[1][2] punctured by dormer windows[3] to create additional habitable space,[4] such as a garret. A steeper roof that terminates into a lower sloped roof at its high point.

is the building of structures from individual units laid in and bound together by mortar; the term masonry can also refer to the units themselves. Refers to bricks, concrete, or concrete blocks.

A thin layer of woven, non-woven, or knitted fiber used to reinforce a material.

Written descriptions of the chemicals in a product provided by the product’s manufacturer. MSDS also contain other information such as emergency procedures and safe handling.

Damage to a roof by means of items puncturing or otherwise unnecessarily penetrating the roof system or any of its components. Screws or nails stuck in the roof and heel marks along base flashings are examples of mechanical damage.

Devices such as screws, plates, battens, nails, or other materials that are used to secure roofing materials.

The portion of the roofing system that serves as the waterproofing material. Can be composed of one material or several materials laminated together.

The Metal Building Manufacturers Association (MBMA) was founded in 1956 and promotes the design and construction of metal building systems in the low-rise, non-residential building marketplace. A non-profit trade organization, MBMA's headquarters is in Cleveland, Ohio.[1] The organization consists of building system members, who are certified according to standards which have been set by the International Accreditation Service of the International Code Council, and associate members, who work with the metal building industry.

The Metal Construction Association (MCA) was formed in 1984 with a focus on one key strategy - to grow the use of metal in construction through marketing, education, and selective action on public policies that affect metal’s use in building projects.

Roof components made from sheet metal that are used to terminate the roofing membrane or material along roof edges. Metal flashings are also used in the field of the roof around penetrations.

Metric unit of length measurement equal to 39.37 inches

A unit of measure equal to 0.001 inches (1/1000 in.) used to indicate the thickness of a roofing membrane.

A superficial coating or discoloration of organic materials caused by fungi, especially under damp conditions. The term mildew is often used generically to refer to mold growth, usually with a flat growth habit. Molds can thrive on many organic materials, including clothing, leather, paper, and the ceilings, walls and floors of homes or offices with poor moisture control.

Metric unit of measure equal to one thousandth (0.001) of a meter, or 0.03937 inches.

Inorganic fibers of glass or rock. Mineral fibers can be particular strong because they are formed with a low number of surface defects.

Roofing materials with a top surface consisting of mineral granules.

The joint made by two diagonally cut pieces put together.

A group of codes and standards accepted by more than one of the Building Code regulatory agencies such as SBCCI, BOCA, and ICBO

a bitumen modified by one or more polymers such as Atactic Polypropylene (APP), styrene butadiene styrene (SBS).

A vent installed through the roofing membrane to relieve moisture vapor pressure that has been trapped within the roofing system.

A survey of a roof specifically to detect the amount of moisture present in the roof system. Devices used in moisture surveys can be capacitance meters, infrared cameras, and nuclear scanners. Infrared scans can be done from the air or on the surface of the roof. Capacitance and nuclear scans are done on the roof surface. It is argued that the most accurate scans are done from the surface of the roof with the most accurate of these being nuclear scans.

A term used to describe a ridge in a roof membrane that is not the result of improper deck or insulation joints.

Used to describe something without seams; formed from a single material.

A simple molecule that can combine with other to form a polymer.