Heavy Duty Reflective Foil Radiant Barrier Roof Underlayment 4 Ft X 250 Ft 1000 Sq Ft Closed Cell Foam Core Insulation Rock Solid To Keep Your Attic Chill No Sweat At All

Heavy duty reflective radiant barrier roof underlayment
✔️ Pack of one 1000 sq ft reflective radiant barrier roof underlayment

This single roll functions as a heavy duty thermal shield between your shingles and attic space. Coverage spans 48 inches by 3000 inches (121 mm by 7620 mm) per roll. Nail it over existing plywood or straight onto framing to block summer heat while trapping indoor warmth during winter. Builders and homeowners deploy it across sloped roofs vaulted ceilings and garage flats to slash energy costs and keep indoor temps steady without wrestling with fiberglass dust or sagging batts.

✅ Double sided silver laminate reflects ninety seven percent of radiant heat
✅ Closed cell foam base maintains constant 1 5 mm or one sixteenth inch depth
✅ ASTM class one fire rating passes E84 and E2599 safety protocols
✅ Staple friendly material seals punctures automatically during rough installation
✅ Delivers r six thermal resistance alone or scales to r fifteen with overlapping layers

💡 What makes a closed cell foam radiant barrier better than traditional bubble wrap types?
Foam core builds are way more handy for tough exterior jobs because they ignore moisture buildup and stay firmly flat against uneven wood frames.
- Dense polymer layers stop condensation from rotting roof decking without absorbing ambient humidity
- Self sealing puncture points keep air leaks locked tight around nails during quick framing work
- Non compressing profile maintains steady r value ratings on vertical wall studs and steep pitches