decorative rafter tail templates aligator

#Decorative rafter tail templates aligator series

This asphalt is for use in roofs that do not exceed a 3 in 12 slope (25%). Steep Asphalt: A roofing asphalt conforming to the requirements of ASTM Specification D 312, Type III. This asphalt is for use in roofs that do not exceed a ½ in 12 slope (4%). Flat Asphalt: A roofing asphalt conforming to the requirements of ASTM Specification D 312, Type II. This asphalt is for use in roofs that do not exceed a ¼ in 12 slope (2%).

Dead-Level Asphalt: A roofing asphalt conforming to American Society for Testing and Materials (ASTM) Specification D 312, Type I.

Asphalt can be refined to conform to various roofing grade specifications:

Asphalt: A substance left as a residue after evaporating or otherwise processing crude oil or petroleum.

ASHRAE: American Society of Heating, Refrigerating & Air-Conditioning Engineers, Inc.

ASHI: American Society of Home Inspectors.

Asbestos: An incombustible fibrous mineral form of magnesium silicate formerly used for fireproofing and sometimes used for the reinforcement of roofing materials.

ASA: American Subcontractors Association.

ARMA: Asphalt Roofing Manufacturers Association.

It is used to relieve thermal stresses in a roof system where an expansion joint is not required, or to separate large roof areas.

Area Divider: A flashed assembly usually extending above the surface of the roof that is anchored to the roof deck.

Architectural Shingle: Shingle that provides a dimensional appearance.

Architectural Panel: A metal roof panel that usually requires solid decking underneath.

Apron Flashing: A flashing located at the low end of a curb or penetration.

Application Rate: The rate at which a material is applied per unit area.

ANSI: American National Standards Institute.

The anodic will oxidize and produce an electrical current that protects the cathode from corrosion.

#Decorative rafter tail templates aligator series

Anodic: When two metals are connected in an electrolyte, they will form a galvanic cell with the higher metal in the galvanic series being the anode.

Ambient Temperature: The temperature of the air.

Aluminum: A non-rusting metal used for metal roofing and the fabrication of gutter and flashings.

Aluminized Steel: Sheet steel with a thin aluminum coating on the surface to enhance the steel's ability to withstand weathering.

Alligatoring: The cracking of the surfacing bitumen on a built-up roof, producing a pattern of cracks that resemble an alligator's hide.

This procedure is used to modify properties of the asphalt.

Air Blown Asphalt: Asphalt produced by blowing air through molten asphalt held at an elevated temperature.

Aggregate can be rock, stone, crushed stone or slag, water-worn gravel, crushed lava rock, or marble chips.

Aggregate: A surfacing or ballast for a roof system.

AGC: Associated General Contractors of America.

Adhere: The clinging of one surface to another, either molecularly or otherwise.

(Noble metals being those that are resistant to corrosion and oxidation in moist air, unlike most base metals.)

Active: Will corrode in the presence of moisture or a noble metal.

Acrylic Resin: Polymers of acrylic or met acrylic monomers often used as a latex base for coating systems.

Acrylic Coating: A coating system with an acrylic resin base.ACIL: American Council of Independent Laboratories.(2) The use of a strong acid to etch the surface of material such as metal in order for that material to accept a primer or Spray Polyurethane Foam (SPF). Acid Etch: (1) The use of a strong acid to remove the surface of concrete thereby exposing the aggregate.Absorption: The act or process of retaining foreign particles, such as gas or liquid, without transmission of these particles.AAMA: American Architectural Manufacturers Association.A I B I C I D I E I F I G I H I I I J I K I L I M I N I O I P I Q I R I S I T I U I V I W I X I Y I Z A