Chimney out the Top Rubber Closure

If you're looking for a rubber closure or seal for a chimney pipe exiting through the roof (top vent), you likely need a weatherproof flashing boot or roof penetration seal. Here’s how to find the right one:

Product ID: SB222

1. Identify Your Chimney Pipe Type

• Material: Is it single-wall steel, double-wall insulated (Class A), or flexible stainless liner?

• Diameter: Measure the outer diameter (OD) of your pipe (common sizes: 6", 7", 8").

• Roof Pitch: Is your roof flat, low-slope, or steep?

2. Rubber Closure Options

A. Silicone or EPDM Roof Flashing Boot

• Fits around pipe and seals against roof leaks.

• Example:

  • FireStop Collar (for Class A chimneys) – Amazon.

  • Duraflue Silicone Roof Flashing (heat-resistant up to 500°F).

B. Adjustable Rubber Chimney Pipe Boot

• Universal fit for metal pipes (6"–12" range).

• Brands:

  • Oatey or Hy-C (sold at Home Depot/Lowe’s).

C. High-Temp Silicone Sealant (DIY Fix)

• For small gaps, use Rutland 2000°F RTV Silicone around the pipe.

3. Installation Tips

• Step 1: Slide the boot over the pipe before securing the chimney.

• Step 2: Seal edges with roofing tar or high-temp silicone.

• Step 3: Secure with stainless steel screws/clamps.

4. Code Compliance

• Ensure the seal meets UL 1777 (for chimneys) and local building codes.

Need help with your specific pipe or roof type? Share details (photos welcome!), and I’ll refine recommendations!