If your Florida home has a chimney and you have ever wondered why water seems to collect behind it during heavy rain, the answer may be a missing or failed roof cricket. This small but critical roofing component prevents water damage that can cost thousands to repair — and many Florida homes are missing one.
What Is a Roof Cricket?
A roof cricket — also called a saddle — is a small peaked structure built behind a chimney where it meets the roof surface. It looks like a miniature roof, with two sloped sides that divert water around the chimney rather than allowing it to pool against the uphill wall.
Without a cricket, the junction between the chimney and the roof slope creates a natural dam. Rain water, leaves, and debris accumulate behind the chimney, and this standing water eventually penetrates the flashing and finds its way into your home. In Florida, where tropical downpours can dump two to three inches of rain per hour, the water volume behind an unprotected chimney is substantial.
Why Florida Homes Need Crickets
Florida's rainfall intensity makes roof crickets more important here than in drier climates. The state averages 54 to 60 inches of annual rainfall, much of it delivered in intense afternoon thunderstorms during the June through October wet season. A single summer storm can dump enough water behind an unprotected chimney to overwhelm even good flashing.
Beyond rainfall, Florida's organic debris — leaves, palm fronds, seed pods, and pollen — accumulates behind chimneys and creates a moisture-trapping mat that accelerates deterioration of flashing and underlayment. A cricket's peaked design sheds this debris to either side, keeping the area behind the chimney clean and dry.
Florida Building Code Requirements
The Florida Building Code requires a roof cricket behind any chimney that is 30 inches or wider, measured perpendicular to the roof slope. The cricket must be constructed with a ridge that diverts water to either side and must be covered with the same roofing material as the rest of the roof or with corrosion-resistant sheet metal.
Even for chimneys narrower than 30 inches, a cricket is strongly recommended. The code minimum is a threshold, not a best practice. Most experienced Florida roofers install crickets behind any chimney regardless of width because the cost is minimal and the protection is significant.
How a Cricket Is Built
During a roof replacement, building a cricket is straightforward. The roofer frames a small peaked structure using plywood or OSB sheathing over wood nailers attached to the roof deck behind the chimney. The cricket is then covered with underlayment — typically peel-and-stick membrane in Florida — and finished with the same shingles, tiles, or metal panels as the surrounding roof. Step flashing or counter flashing integrates the cricket into the chimney wall to create a continuous waterproof seal.
The entire process adds about one to two hours to a roof replacement and costs $200 to $500 in additional materials and labor.
Cost to Add a Roof Cricket
**During a roof replacement**: $200 to $500. This is by far the most cost-effective time to add a cricket because the surrounding roofing is already removed and the deck is accessible.
**As a standalone project**: $800 to $1,500. The higher cost reflects the need to remove and replace surrounding shingles or tiles, plus the additional setup and cleanup time.
Signs Your Cricket Has Failed
If you have a cricket that is already showing problems, watch for these signs: water stains on the ceiling or walls near the chimney, peeling paint on the chimney interior, damp or musty smell in rooms adjacent to the chimney, visible debris accumulation behind the chimney when viewed from a second-story window, and sagging or deteriorated material at the cricket ridge.
The Bottom Line
A roof cricket is a small investment that prevents major water damage. If your Florida home has a chimney 30 inches or wider, building code requires one. If your chimney is narrower, you should still have one. The ideal time to add or replace a cricket is during a roof replacement, when the cost is minimal. Contact Goliath Roofing for a free inspection — we check every chimney cricket as part of our standard assessment.
Frequently Asked Questions
Does the Florida Building Code require a roof cricket behind a chimney?
Yes, for chimneys 30 inches or wider. Smaller chimneys do not require one by code, but a cricket is still recommended.
How much does it cost to add a roof cricket in Florida?
$200 to $500 during a roof replacement. $800 to $1,500 as a standalone project.
Can a missing roof cricket cause a leak?
Yes. Water pools behind the chimney, penetrates flashing, and damages decking and framing — often undetected until significant damage occurs.