Metal Roof Joist Spacing

Builders aren t bound by standard rafter spacing measurements.

Metal roof joist spacing.

If this is the case with your structure use the floor joist table to determine maximum joist length load. Installing wood stripping under a tin roof. Tin roofing also known as metal roofing is considered more durable than composition or wood shingles. Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available.

I have built a few spec homes and used engineered wooden trusses at 8 feet on center with 2x4 s as ceiling joists and purlins vertically between the top and bottom chords of the trusses. The roofing is manufactured in panels that. Provide a lightweight low cost rigid floor assembly c joist components provide an economical lightweight alternative to open web trusses bar joists engineered lumber cast in place or hollow core floor assemblies. A metal roof must also allow for some overlap on each side of the panels which will reduce the effective width of the panel.

Rafter spacing is based on the width of the metal roofing panels. Wider panels allow for greater spacing between rafters. Depending on loads and spans c joists are typically spaced at 12 16 19 2 or 24 on center spacing. The tables below give maximum spans for rafters and beams.

I saved some money on materials gave it all. After all the roof joists have been installed take the time to measure the spacing again. Ceiling joists of the first floor of a two story structure often serve as floor joists for the second floor. Joist span tables use these tables to determine lengths sizes and spacing of ceiling joists.

Just because one material may be stronger than another doesn t mean the. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. Before installing any roof joists always measure the area at least twice. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.

Rafter and roof joist spacing is only one part of a complex roof design that works together to form a structure that meets building codes and can hold up the weight of the roof and roof load. The figures are based on quality materials. Structural track usually in the same gauge as the. Pole buildings with metal roofs are typically built with metal roofs resting directly.

Roof joists can be made of wood metal concrete or any number of materials. Truss spacing for metal roof i always thought 4 oc was standard for building pole barns using metal roofing. Let s take a look at the most common types of metal roofs for houses.