Deck is set in a welded full-perimeter frame constructed from gutter fascia.  Water is carried by deck into the gutter fascia frame and then discharged thru a scupper in the corner of the frame at the leading edge of the canopy or into a downspout attached in the corner of the frame at the building.

A beam and diagonal strut is used to support  the deck.  Water is carried by deck into beams and is discharged thru a scupper at the leading edge or end f the beam or thru a downspout at building.   Fascia is used as trim to hide the deck on up to three sides of the  canopy and surface mounted flashing is used on the building side of the canopy for water tightness.

A “cantilevered” beam used to support  the deck.  Water is carried by deck into beams and is discharged thru a scupper at the leading edge or end f the beam or thru a downspout at building.   Fascia is used as trim to hide the deck on up to three sides of the  canopy and surface mounted flashing is used on the building side of the canopy for water tightness.

A beam and diagonal strut cantilevered from a column is used to support  the deck.  Water is carried by deck into beams and from the beam to the columns to be discharged on to grade or into the underground site drain system.   Fascia is used as trim to hide the deck on all sides of the  canopy.

Deck is supported by an “a-frame”, ridge beams and gutter fascia. The “a-frame” is supported by columns.  The gutter fascia is used to capture water at the low points of the slope.  It is then routed through beams to either one or both columns so it can be discharged from the column on to grade or into the underground site drain system.

A single column is used to support a beam to which the canopy deck is attached.  Water is carried by deck into beams and then to columns to be discharged on to grade or into the underground site drain system.  Fascia is used as trim to hide the deck on all sides of the  walkway cover.

Deck is supported by a curved and chord beam frame which set on columns.  Water is carried by deck into the curved beams and then routed to either one or both of the columns through the chord beam to be discharged on to grade or into the underground site drain system.  Fascia is used as trim to hide the deck on all sides of the  walkway cover.

A single column is used in combination with the building as structure to support a curved beam to which the canopy deck is attached. Water is carried by deck into beams, falls to the low point of the curved beam and then is routed back to the columns through tubes to be discharged on to grade or into the underground site drain system.  Fascia is used as trim to hide the deck on up to three sides of the  walkway cover and surface mounted flashing is used on the building side of the walkway cover for water tightness.

Deck is supported by a curved and chord beam frame which set on columns.  Water is carried by deck into the curved beams and then routed to the columns through the chord beam to be discharged on to grade or into the underground site drain system.  Fascia is used as trim to hide the deck on all sides of the  walkway cover.

A single column is used to support a curved beam to which the canopy deck is attached.  Water is carried by deck into beams, falls to the low point of the curved beam and then is routed back to the columns through tube struts/kickers to be discharged on to grade or into the underground site drain system.  Fascia is used as trim to hide the deck on all sides of the  walkway cover.

Many factors influence the cost and usefulness of a walkway cover. Following the process outlined below will help to ensure an efficient system.

CHOOSE THE LIGHTEST AVAILABLE DECK SECTION

Deck accounts for roughly 60%-70% of the cost of materials in a typical extruded aluminum walkway cover. To minimize cost, always choose the lightest available deck section for the given loading conditions. If no minimum bent spacing requirements exists, choose 3″ deck. For detailed information on deck selection please contact us directly.

SPACE BENTS AT THE MAXIMUM ALLOWABLE INTERVAL

After making the deck selection, set bent spacing equal to maximum allowable deck span. This allows full usage of the chosen deck section.

SET DECK WIDTH TO X’-6″

6″ Deck sections are more economical per square foot than other sections. Setting deck width to X’-6″ reduces material and labor costs.

SELECT THE MOST ECONOMICAL BENT STYLE AND SIZE

To achieve the least costly configuration always choose the smallest columns and beams.

MAINTAIN MINIMUM WIDTH/HEIGHT RATIO = 1.0

Tall, narrow walkway covers offer little protection from the elements. PPC recommends that the height of the walkway cover not exceed the width.

RUN DECK PARALLEL TO WALKWAY

The parallel layout will accomplish three things:

• Allow the use of rigid bents
• Fully utilize the long-span capability of deck
• Eliminate the need for expensive perimeter gutters.

CHOOSE APPROPRIATE FINISH

Selection of finish greatly affects the installed cost of the walkway cover. The painted Baked Enamel finishes in standard white or dark brown are the least costly. Clear Anodize and Dark Bronze Anodize finishes are the medium grade finishes. Finishes using fluoropolymer resin based paints such as Kynar, Hylar and Duranar are high end finishes which come in a wide array of colors. These premium finishes are the most costly available for walkway cover systems and the relates costs can vary greatly depending on the color selected.

INSIST ON AN ENGINEERED SYSTEM

The walkway cover must be designed to withstand all appropriate loads without failure in stress or deflection. Structural calculations, signed and sealed by a registered Professional Engineer are an essential part of a quality walkway cover.

ASK FOR ASSISTANCE

PPC is ready to provide expert guidance at any stage of the planning process. Call us direct at (800) 341-3325 or email us.

Many factors influence the cost and usefulness of a hanger canopy system. Following the process outlined below will help to ensure an efficient system.

DETERMINE THE APPROPRIATE APPLICATION

• Standard Hanger Canopy: consist of gutter fascia framework with the deck running perpendicular to the building.  This application is most useful over exterior entry ways.
• Custom Suspended Hanger Canopy:  consist of support beams mechanically fastened perpendicular to the building and the deck running parallel with the building.  This application has a standard fascia profile in lieu of a gutter type system and is most useful for large projections off the face of a structure and/or extensive lengths of covered area.

SELECTING THE SIZE

After selecting the appropriate application, determine the size of the canopy sufficient for your project.

For exterior entry ways, we suggest and overall width of +6” to the greater on either side of the opening.  Determining canopy projection is a matter of preference, however 4’-0” is a common industry standard.

For custom suspended canopies, we suggest that the canopy projection not exceed 10’-0” as a column supported unit is more efficient from a cost and engineering perspective.  Reference Design Guide to Extruded Aluminum Canopies.

SELECTING GUTTER FASCIA

Gutter fascia is an extrusion whose purpose is exactly what the description implies.  The exterior face of the extrusion is either 6” or 8” inches in height and acts as a fascia for the canopy unit.  The interior portion of the extrusion has a “G” shaped profile with flanges that allow for the connections of the decking and hanger supports while also acting as a water trough.  Reference section entitled ? for more information.

SELECTING HANGER SUPPORTS AND SPACING

Hanger supports, or tie-backs, mechanically fasten to the support frame of the canopy and extend vertically, typically at a 30 to 45 degree angle back to the building structure.  These supports can be square or circular in nature and come in a variety of sizes.  Sizing and spacing is determined based upon the overall dimensions and projection of each unit.

SELECTING THE DECK

Decking can be divided into three categories; roll form decking, corrugated decking, and flat soffit decking.  Options are dependent upon finish selection and aesthetic preferences.  Reference section entitled Deck for more information.

SELECTING DRAINAGE OPTIONS

Both canopy profiles offer internal drainage systems in which the water can be routed to the front of the canopy and be discharged through a scupper or directed to the back or wall side of the canopy and be discharged at grade level or connect to the storm drain via one or more designated downspouts.

CHOOSE APPROPRIATE FINISH

Selection of finish greatly affects the installed cost of each hanger canopy unit. The painted Baked Enamel finishes in standard white or dark brown are the least costly. The roll form decking is only available in the Baked Enamel finish.  Clear Anodize and Dark Bronze Anodize finishes are the medium grade finishes. Finishes using fluoropolymer resin based paints such as Kynar, Hylar and Duranar are high end finishes which come in a wide array of colors. These premium finishes are the most costly available for hanger canopy systems and the related costs can vary greatly depending on the color selected.

INSIST ON AN ENGINEERED SYSTEM

The walkway cover must be designed to withstand all appropriate loads without failure in stress or deflection. Structural calculations, signed and sealed by a registered Professional Engineer are an essential part of a quality walkway cover.

ASK FOR ASSISTANCE

PPC is ready to provide expert guidance at any stage of the planning process. Call us direct at (800) 341-3325 or email us.