Metal Roof Chimney Cricket Flashing

Crickets are normally but not always sold in conjunction with chimney flashing kits.

Metal roof chimney cricket flashing.

Crickets are always fabricated with flanges all around. 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. This way you can get the precise fit fr your chimney or skylight every time. Chimney flashing kits are normally composed by 3 parts.

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 cricket is sloped like a tent roof to deflect water around the chimney. A well flashed joint with a cricket from riverside is key in avoiding any problems. The front back and side flashing metal.

The junction between a roof and a chimney or skylight is one of the most prone to leak in a roof. 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. The front and back are custom fabricated to order for an exact fit. 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 stone and mortar chimney has an uneven surface and it is difficult to cut into. Base flashing has several components. You want the counter flashing to look good be watertight and not take away from the appearance of the stone.