Using fasteners to secure the roof is one single-ply roofing installation method. When considering the fastening method most appropriate for your application, it’s important to make a selection based upon many factors, including the type of roof deck (wood, metal, concrete, etc.) on your building. “Mechanically fastened single-plies will work on just about any type of roof deck. Where you have to be careful is when you get into some of the very lightweight decks, such as the cementitious wood fiber and gypsum decks. Lightweight insulating concrete you have to be careful with, because you’re relying on that material to hold the roof down. In many cases, manufacturers will recommend fastening through the insulating concrete into the structural deck. Some of these applications may require narrower sheets and more fasteners to ensure that there isn’t a greater likelihood of fastener pull-out (referred to as pull-out value).

Careful consideration should be taken so that the proper number of fasteners is used. Installing a roof with an insufficient number of fasteners can increase the chances of blow-off. When one fastener pulls out, its load is transferred to surrounding fasteners, increasing the chances of their pull-out as well.

If the facility is located in an area prone to high winds, the means for attaching your single-ply roof is especially important. “If you’re in a wind zone or a place where you’re exposed to high wind uplift conditions