Metal Roof Chimney Cricket Flashing

All metal roofing specialists feels roofing penetrations such as chimneys and skylights present some of the most challenging flashings on a metal roof.

Metal roof chimney cricket flashing.

You want the counter flashing to look good be watertight and not take away from the appearance of the stone. A cricket is sloped like a tent roof to deflect water around the chimney. Chimney flashing kits are normally composed by 3 parts. Crickets are normally but not always sold in conjunction with chimney flashing kits.

Riverside custom fabricates all crickets sold. Base flashing has several components. The intention of a cricket flashing is to divert the water and debris around the chimney rather than allowing it to collect behind the chimney. Kits made from copper lead coated copper freedom gray and tcsii are always soldered while aluminum parts are riveted and can be sealed before installation.

A stone and mortar chimney has an uneven surface and it is difficult to cut into. The front back and side flashing metal. A well flashed joint with a cricket from riverside is key in avoiding any problems. The nz metal roof and wall cladding code of practice recommends using a cricket flashing see figure 3 where the width of the penetration is more than 600 mm or the roof pitch is below 10.

A do it yourself video detailing step by step how to flash a chimney with our metal roofing chimney kit. The junction between a roof and a chimney or skylight is one of the most prone to leak in a roof. A continuous sheet metal apron across the chimney s downslope face l shaped step flashing running up both sides and when the chimney sits below the roof ridge a cricket or saddle running across the upslope face.