12″ Strong Sleeve for radon mat footer pass-thrus.  Place in form, then pour around. After concrete cures you have a foam knockout.  Strong sleeves for perfect pressure field extension across footers.

Strong Sleeve Pressure Field Evaluation 2025

Benefits include:

• Safer construction site
• Higher PFE
• Less roof penetrations
• Lower ongoing maintenance costs

Applications:

• Slabs with load bearing footers
• Floors with hydronic heating
• Crawlspaces with concrete grade beams or pony wall supporsts

Meets all radon codes!

• ANSI AARST RRNC 2.0
• ANSI AARST CC-1000
• ASTM 1465-06
• IRC APPENDIX F
• LEED BD+C

Is is recommended, especially during cold weather months, that 2″ is removed from grade to allow for soil gas collector in soil with 1″ foam above.  See drawings below.

Strong Sleeve Product Detail SSK08

Soil Gas Mat subslab preparation detail for FOAM

Strong Sleeve in Form CAD

Installation Video Click HERE