4-Inch Attic Insulation Shield for Selkirk Model HT

The 4-inch attic insulation shield is used where a compatible Selkirk 4-inch insulated chimney enters an open attic. Its purpose is to keep blown-in or blanket insulation from filling the framed chimney opening or contacting the chimney where the required airspace must be maintained.

Selkirk identifies this component as HT4AIS. Current Selkirk literature notes that the 4-inch attic insulation shield is used together with the appropriate firestop joist shield or ceiling support, depending on the installation.

4-Inch Attic Insulation Shield Features

• Chimney size: 4 inches
• Manufacturer: Selkirk
• Selkirk product code: HT4AIS
• Purpose: Keeps attic insulation away from the chimney and framed opening
• Application: Open-attic chimney penetrations
• System: Selkirk 4-inch Model HT / Ultra-Temp chimney

Why the Attic Shield Matters

Loose-fill and blanket insulation can migrate into framed openings over time. The attic insulation shield creates a physical barrier that helps preserve the required airspace around the chimney where it passes through the attic.

This component does not replace the other support or firestop parts required by the chimney system. Use it in the configuration shown in the current Selkirk installation instructions.

Related 4-Inch Chimney Components

• 4-Inch Firestop Radiation Shield
• 4-Inch Black Ceiling Support
• 4-Inch Insulated Chimney Pipe - 36-Inch Length
• 4-Inch Insulated Chimney Pipe - 24-Inch Length
• 4-Inch Rain Cap

Read our 4-Inch Stove Pipe Guide or browse all 4-inch chimney pipe and installation accessories when planning the complete system.

Installation Notes

Do not pack insulation into the required airspace around the chimney. Follow the Selkirk installation instructions for framing, shielding, support, firestopping, and required clearances. The correct configuration depends on whether the chimney passes through a supported ceiling, an open attic, an enclosed chase, or another type of construction.

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