HVAC Vent Ring (1" Tall) — Self-Leveling Dam + Expansion Joint (Size Variants)
HVAC Vent Rings are 1" tall foam rings designed to be adhered to plywood subfloors before pouring self-leveling underlayment. They create a clean, reliable dam around floor vent openings to help keep leveler out of duct cavities, while also functioning as an expansion joint to allow normal movement around the penetration. After the pour cures, any foam standing proud of the finished surface can be trimmed flush for a clean, professional finish.
Key Selling Points
1" tall foam ring designed for use with self-leveling compounds
Helps prevent self-leveler from entering duct openings by forming a clean physical dam
Functions as an expansion joint around vent penetrations
Trims flush after cure for a clean finished appearance
Ships with X-shaped cross members to protect the ring in transit
Cross members remove easily on site with a gentle twist before installation
Installs directly to plywood subfloors using adhesive
Installation Notes (Typical Workflow)
Glue ring to plywood subfloor before pouring self-leveler
Remove X cross members prior to installation
Pour self-leveling compound as normal
After cure, trim any foam above the finished surface flush with a saw
