A cricket or saddle is a ridge structure designed to divert water on a roof around the high side of a chimney or the transition from one roof area to another, the cricket is normally the same pitch as the rest of the roof, but not always. Smaller crickets are covered with metal flashing, and larger ones can be covered with the same material as the rest of the roof.
- "Chimney cricket" def. 1. Schmid, Karl F.. Concise encyclopedia of construction terms and phrases. New York: Momentum, 2014. Print.
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On low-sloped roofs, such as asphalt built-up roofs, there is a difference between the terms cricket and saddle. Although most, even within the industry, don't generally distinguish between the two terms. However, a cricket is generally created with tapered insulation installed beneath the roof membrane in a diamond shape, and placed between two roof drains; or half-diamonds (triangles) between roof drains and parapets, or placed between scuppers along a parapet. Saddles on the other hand are generally the half-diamond (triangle) that is placed behind equipment curbs or other roof penetrations, so rainwater on roof is diverted around the penetration. So, crickets are typically involved in directing water into the roof drainage element, while saddles are typically used to divert or redirect water in field of roof.