Alum-a-Wood Patio Covers, Patio Enclosures & Sunrooms

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Glossary of Terms

   
5/8" plugs:
Also known as buttons. These are used to cover the 5/8" holes drilled to secure the post wraps to the posts.
   
   
Attached:
A patio cover that is screwed or lagged to a permanent structure, versus a freestanding cover.
   
   
Awning Panels:
Also known as pans, they come in different widths, 6", 8" flat panels, 12" and 24" W-panels, and 48" insulated roof panels.
   
   
Beam:
Measures 3" x 8". Usually runs the length of the cover is and is supported by columns or posts. The rafters on a lattice cover and the flat pans on a solid cover are fastened to the top of the beam.
   
   
Brackets:
These are used to attach the rafters to the structure and beam, and used to attach the posts to the beam and concrete.
   
   
Embossed:
A raised texture that is designed to give the aluminum a wood-grained look.
   
   
End Caps:
Plastic end caps are used to finish off the ends of the aluminum rafters or decorative ends on a solid color. They give a big of architectural distinctiveness, by having different decorative shapes.
   
   
Fasteners:
Screws, anchors, bolts and lags used to build the patio cover. Most fasteners are painted to match the color of the patio cover.
   
   
Footings
A cube shaped hole dug into the ground to be filled with concrete in order to support the posts if there is not a concrete slab. Footings are needed on all freestanding covers, and steel posts are embedded in the concrete. The size of the footing is determined by code specifications.
   
   
Freestanding:
A patio cover that is not attached to any structure, but standing alone.(Note: Freestanding covers always require steel posts and footings.)
   
   
Height:
The measurement from the ground to the ceiling portion of the cover.
   
   
ICC ER:
International Code Council. The governing body that writes building codes that are accepted and enforced by the individual cities/counties.
   
   
Insert Beam
(C-Beam)
A 3" x 8" steel beam used to increase the column spacing. (Requires steel posts and footings.)
   

   
IRP:
Insulated Roof Panels.3", 4", or 6" thick foam panels with embossed aluminum laminated to each side. Used to construct an insulated solid cover, or used as the roof on a patio enclosure.
   
   
Lattice Cover:
Also called open lattice...where the patio cover roof consists of lattice tubes spaced equal distance apart allowing filtered sunlight to pass through.
   
   
Lattice Tubes
Available in three sizes: 1.5" x 1.5", 2" x 2", or 2" x 3". They usually run parallel with the header beam and are attached on top of the rafters.
   
   
Length:
The description of the measurement used to determine the overall distance from one end of the cover to the other.(i.e. 10' x 20' patio cover...the 20' is the length.The projection is always given first.)
   
   
Overhang:
The self supporting distance past the last point where the panel, beam or rafter is attached.
   
   
Patio Cover:
Also known as a lattice patio, pergola, flat pan cover, solid patio, awning, alumawood, among a few.
   
   
Post:
Also called columns; are placed under the 3" x 8" beam or under the gutter and are the main support of the patio cover. There are many types of posts and/or columns available.
   
   
Post Kit:
Everything needed to install the post of column; brackets, fasteners, etc.
   
   
Post Spacing:
Or column spacing; is the distance between posts or columns as determined by the code specifications. This can be increased by the use of a steel insert beam and steel posts and footings.
   
   
Post Wraps:
2" x 6" in size, one is placed on the inside and outside of each post for looks and strength. Post wraps are foam filled to enhance dent resistance.
   
   
Projection:
The description of the measurement used to establish the distance from the house or structure to the furthest point out from the structure, excluding trim.
   
   
Rafters:
Used in the roof portion of a lattice cover, measuring 2" x 6.5" and run perpendicular to the beam. They are attached to the top of the beam and at a ledger board back at the house wall.
   
   
Rafter Tails:
Rafter material cut to 12" in length with a miter, scallop, corbel or bevel shape on one end, and attached to front fascia of a solid cover.
   
   
Solid Cover:
A patio cover that uses solid aluminum panelsas a roof to keep rain and sun from coming through.
   
   
Span:
The distance from the house attachment to the support beam.
   
   
Steel Post:
Also known as an insert post, measures 3" x 3" square. The length is determined by the height of the patio and addition the depth of the footing.
   
   
Thickness:
The measure of the aluminum used in the pieces of the patio cover. A higher number equals a thicker potion. Common thicknesses are .018, .024, .032, etc. A thicker piece of material is used to attain a greater span.
   
   
Tributary Width:
Approximately half of the distance of rafter or panel span, plus the overhang.Used to determine post spacing.
   
   
Trim Kit:
Decorative only, and fastened to the front fascia of a solid cover. See Rafter Tails.
   
    

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