Metal Roof Fastener Spacing

This article describes the fastener screw or nail schedule for several types of exposed fastener metal roof systems citing manufacturers installation manuals and guidelines.

Metal roof fastener spacing. Why you should use a screw gun to fasten metal roofing fasteners. Screws are available in quantities of 250. We include a discussion of the requirement for use of a greater number of metal roof fasteners in high wind zones and we give an example schedule of the. Spacing recommendations for exposed fastener metal roof systems.

You must make sure you are placing the screws in the appropriate place for a tight fit so that the panel is able to resist specific loads. Inch screws can be used. Proper metal roofing installation begins with the use of the right equipment starting with the screws used to anchor your panels to the structure. Screw line spacing for metal roofing over metal purlins.

Let s take a look at the most common types of metal roofs for houses. Trim the most common flashing for metal roofing is the ridge cap which is used at the peak of a roof where two opposing roof slopes join. Preventing leaks lengthens a roof s life. 1 inch and 2 inch.

The table below can be used to figure approximate quantities of screws for various purlin spacings and sizes of roofs. An engineer will use a load chart in order to determine the spacing between metal purlins. Why is screw spacing important. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.

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. A metal roof is a long lasting roof but checking the screws for damages is an important part of metal roof maintenance. There are lap screws metal to wood screws metal to metal screws sealing tape and you need to know the spacing of the screws. Allsteel carries screws in 2 different lengths.

Many newer metal roofs are built with exposed fasteners which can leak if the metal roof installation guide is not carefully followed. Once the purlin spacing is determined then the metal roofing panels are typically attached to every line of purlins. How to calculate and place screws. See page 6 for more information on screw spacing and ordering.

This will depend upon the type of panel that is used and the thickness of the steel.