PAC-850 Soffit

PAC-850 Soffit is an aluminum soffit panel in the PAC-CLAD range made by Petersen Aluminum Corporation. It uses a hook-and-grab interlock. The panel is roll-formed to exact lengths and is made in three surface configurations: solid, half vented and fully vented.

The panel has a nominal width of 12 inches, with V-grooves at 6-inch centers. Its profile height is 3/8 inch.

The panel is formed from .032 inch aluminum. The aluminum is ASTM B209 quality in 3105-H14 alloy and temper, tension leveled, with a maximum camber of 1/4 inch in 20 feet, and is manufactured in the USA. Panels are formed by a continuous rolling method with no end laps.

Perforation for ventilation is available on aluminum only. Nominal open air percentages for PAC-850 are:

• Half vented: 6%
• Full vented: 12%

The percentages are nominal and vary per profile. The solid version has no perforation.

The color finish is PAC-CLAD Kynar 500 in one of 37 standard colors offered on .032 aluminum. The coating is a Kynar 500 or Hylar 5000 fluorocarbon with a top-side film thickness of 0.70 to 0.90 mil over a 0.25 to 0.31 mil prime coat. Total dry film thickness is 0.95 to 1.25 mil.

Finish deterioration under the standard form of finish warranty covers color fading of more than 5 Hunter units tested to ASTM D 2244, chalking in excess of a No. 8 rating tested to ASTM D 4214, and cracking, checking, peeling or failure of the paint to adhere to bare metal. The finish carries a 35-year non-prorated warranty.

The panel is tested to ASTM E330 using air bag testing for negative loads. Three load documents are published: a PAC 850 load table dated 1-1-2005, a PAC 850 negative load table, and a negative load table from the 2010 Florida Building Code approval. Florida Building Product Approvals and Miami-Dade Notices of Acceptance exist for PAC-CLAD soffit panels. Recycled-content data by weight, both postconsumer and preconsumer, applies to LEED credits MR 4.1 and MR 4.2.

Matching J trim is available. Trim is made of the same material and finish as the panels and is press broken in lengths of 10 to 12 feet. It is formed only by the manufacturer or an approved dealer and is erected in an overlapped condition. Miter conditions are factory welded.

• Fasteners are 400 series stainless steel with dished stainless steel washers and bonded neoprene.
• Zees span between beams or joists where the primary framing requires it, with thermally responsive base and top clips fastened to the zees on 12 inch centers.
• Sealant choices are two-part polysulfide class B non-sag, one-part polysulfide without pitch or phenolic extenders, exterior grade silicone, or one-part non-sag gun grade exterior polyurethane.

Panels are installed plumb and true in relation to the structural framing, with strippable coating removed and a dry-wipe cleaning as the panels are erected. Panels attached to treated lumber need a vapor barrier over the lumber first, and no metal product is allowed in direct contact with treated lumber. The panel is also specified for use in a flat soffit under single-skin metal wall panels and soffit assemblies.

Hat channel installation drawings are published as PDF and CAD files for installation, corner splice, fascia to soffit, jamb and profile jamb. BIM files cover the PAC-CLAD material palette and the PAC-850 Soffit. A spec sheet and a three-part specification in DOCX form are published, along with a LEED building points document and a recycle statement.