
Insulating Cathedral Ceiling - Southern Climate
Installation Instructions
Reflective Insulation, Installation Instructions (There are 2 options)
1. Directly to Roof Deck - Above Fiberglass - SOUTHERN ZONE OF USA ONLY
- Benefit – R-6.0 Summer & R-2.0 Winter
- It is easiest to install either 16” or 24” wide product (depending on rafter spacing).
- Begin at the top of the cavity. Run product flush to the decking, parallel to the rafter.
- Staple sheet directly to the deck (Nails poking through the InfraStop® product from above will not interfere with performance).
- Do not block any venting (cut around).
- No need to cover rafters (no loop around).
- Ensure that a continuous air space (0.75 inch minimum) is on the bottom side of the InfraStop® product (required and for ventilation).
- Install venting and mass insulation per local codes and manufacturer’s installation instructions.
Radiant Barrier, Installation Instructions
Directly to Roof Deck - Above Fiberglass - SOUTHERN ZONE OF THE USA ONLY
- Benefit – Radiant Barrier – Blocks 94%+ of radiant heat
- Cut the entire roll of product into 16” or 24” lengths with a miter saw (depending on rafter spacing).
- Begin at the top of the cavity. Run product flush to the decking, parallel to the rafter.
- Staple sheet directly to the deck (Nails poking through the InfraStop® product from above will not interfere with performance).
- Do not block any venting (cut around).
- No need to cover rafters (no loop around).
- Ensure that a continuous air space (0.75 inch minimum) is on the bottom side of the InfraStop® product (required and for ventilation).
- Install venting and mass insulation per local codes and manufacturer’s installation instructions
Ventilation: If ventilation is specified into your cathedral ceiling system, insure that you do not block ventilation paths when you install InfraStop®.
Thermal Insulation
Reflective Insulation: Radiant Barrier and R-6.0 Summer / R-2.0 Winter
Product Information
InfraStop® Insulation products are a group of technologically advanced materials. They are ideal for new construction or retrofit applications in commercial, industrial, metal and post/frame buildings, along with many other DIY applications. When you think of insulation, you should think of InfraStop®. Our products are recognized for their thermal performance, easy installation, versatility, price and environmental friendliness.
Benefits
- Easy to handle and install
- Convenient roll sizes
- Class A / Class 1 Fire Rating
- Inhibits dew point condensation
- Vapor retarder (0.02 perms)
- Does not compress, collapse or disintegrate
- Non-toxic / non-carcinogenic
Testing and Certification
InfraStop® products are thoroughly tested at either nationally approved independent laboratories or leading universities. Tests are performed to current American Society of Testing and Materials (ASTM) standards when a standard exists. For a copy of an actual test report, please e-mail us at customer.support@insulationstop.com.

