4-Inch Storm Collar for Selkirk Model HT Chimney

The 4-inch storm collar is used above the roof flashing on a compatible Selkirk 4-inch chimney installation. Its job is to help divert water away from the opening around the chimney and flashing so rain does not run down the outside of the chimney pipe and beneath the flashing cone.

Selkirk identifies the 4-inch storm collar as product HT4SC. The current manufacturer literature specifies that the collar fits around the round chimney pipe just above the roof flashing and that the upper edge should be waterproofed with non-hardening silicone caulking.

4-Inch Storm Collar Features

• Chimney size: 4 inches
• Manufacturer: Selkirk
• Selkirk product number: HT4SC
• Top opening dimension: Approximately 6 inches
• Purpose: Helps weather-seal the roof-flashing area around the chimney
• System: Compatible 4-inch Model HT / Ultra-Temp chimney

Where the Storm Collar Is Installed

The storm collar sits on the chimney immediately above the roof flashing. After positioning the collar around the chimney, it is tightened in place and the upper edge is sealed according to Selkirk's instructions. This helps direct water onto the flashing rather than allowing it to run between the chimney and flashing opening.

The storm collar works together with the roof flashing; it does not replace it. For a roof penetration, both pieces must be selected and installed as part of the complete chimney system.

Pair It With the Correct Roof Flashing

For many sloped-roof installations, the storm collar is used with our 4-Inch Adjustable Roof Flashing. Steeper roof pitches may require the 4-Inch Steep Roof Flashing, while other roof types can require a different flashing solution.

Always confirm the roof pitch and flashing requirements before ordering.

Related 4-Inch Chimney Components

• 4-Inch Insulated Chimney Pipe - 36-Inch Length
• 4-Inch Insulated Chimney Pipe - 24-Inch Length
• 4-Inch Rain Cap
• 4-Inch T-Roof Support Bracket

For help planning the whole system, read our 4-Inch Stove Pipe Guide or browse all 4-inch insulated chimney pipe and accessories.

Installation Notes

Install the storm collar only as part of a compatible chimney and flashing assembly. Follow the Selkirk installation instructions for positioning, fastening, sealing, support, clearances, and roof-penetration requirements. Roof assemblies vary, so the correct installation depends on roof pitch, roofing material, chimney route, appliance instructions, and local code.

For current manufacturer specifications and technical literature, see the Selkirk Ultra-Temp chimney information.