Poligon Tubular Steel Park Shelters, Gazebos, Shade Structures


multi-rib only MR	multi-rib over tongue & groove TGMR	multi-rib over structural insulated panel SPMR	multi-rib over structural insulated panel with aluminum ceiling SAMR


standing seam only SS	standing seam over tongue & groove TGSS	standing seam over structural insulated panel SPSS	standing seam over structural insulated panel with aluminum ceiling SASS


	asphalt shingles over tongue & groove TGAS	asphalt shingles over structural insulated panel SPAS	asphalt shingles over structural insulated panel with aluminum ceiling SAAS

PARK ARCHITECTURE. Outdoor space defined.

	roofing systems

A variety of materials may be used for shelter roofs. They depend on the site, budget, long term maintenance and owner preference. Typical factory supplied options are asphalt shingles, “R” panel or multi-rib, and standing seam metal roofing. All standard metal roofing is Kynar painted over galvanized steel, which offers reduced color fade over time.

Multi Rib Roofing is most often used as an inexpensive combined roof and roof deck system. The 24-gauge galvanized steel panel comes with a Kynar color paint on top and white prime paint on the ceiling surface. Multi-Rib roofing is supplied pre-cut to length and angle. Poligon makes special trim as required. The metal roof deck is attached with exposed fasteners with gaskets. When metal roof deck is used alone as roofing, roof deck condensation can occur. If condensation is a problem, roofing should be used with a roof deck. Both 2x6 t&G or SIP panel roof decks with exposed wood ceilings are available.

Multi-Rib Roofing can be used alone, or in combination with any of the following sub-roofing types:
	T&G Wood Roof Deck of nominal 2x6 tongue and groove lumber makes for a warm interior finish. The random length 2x6 T&G is field cut and screwed in place in the field. In the field, the plank should be sealed with a weather resistant finish (supplied by others). Roof deck is always covered with a 30# felt supplied with a roofing package. If no roofing package is supplied, the felt must be supplied by others.
	SIPs (Structural Insulated Panels) are preferred when an insulation system is required. Most common Poligon SIP roof panels are made with exterior rough sawn reverse board and batten 5/8” plywood with grooves 4” O.C. as a ceiling surface. The core is 3-5/8” EPS and the roof deck is 7/16” OSB.
	Another option for SIP ceiling surface is a white, embossed metal over OSB. These panels are tested and rated for structural loads as roof decks. 4-1/2” SIPs have an “R” value of 15.2.