Using Metal Roofing Under Deck

Rune bought corrugated fiberglass panels at a home center to use for his under deck roof.

Using metal roofing under deck.

Right now my intention is to. Wide and 12 ft. The first goal of roofing underlayment is to keep the roof deck dry before installation of the metal roofing material. Use it to keep your car protected from the elements or use it to add some shade to your outdoor living area.

A solid deck substrate may consist of panels solid sheets or closely spaced deck members made of wood metal or composite materials to which the roof membrane is applied. Get double duty out of your metal roof with this free standing car port. Used as shade cover on. Buy 3 x12 26 gauge roofing panels from a big box store screw progressively thicker strips of wood to the joists to provide slope screw the roofing panels to the strips of wood use a gutter to catch the water at the lower end.

Installation was pretty easy. For many applications a layer of plywood underneath your metal roofing is an unnecessary expense. Round up the materials for an under deck drainage system. The panels he used are 26 in.

Metal roofing panels rated for architectural use attached to purlins horizontal pieces of wood or metal fastened to roofing trusses are structurally sound when installed according to your roofing manufacturer s instructions and local building codes. Step 2 install a wood support structure for your panels screwing a row of 2 by 4s running parallel to your wall every 2 feet along the underside of your deck. Traditionally metal roofs have used standard 30 pound felt paper underlayment. The existing deck is 12 x36 and i will be sloping the short side.

Solid decking should be used with non structural style panels such as mbci s craftsman series small batten panels. For a house roof the recommended minimum slope is 2 5 vertical inches for every horizontal foot but a nearly flat roof is fine for under deck installations. Underlayment must also act as a secondary weather barrier in case the roof fails.