Georgia-Pacific Thermostat OSB Radiant Barrier Sheathing
Thermostat Radiant Barrier Sheathing

Thermostat Radiant Barrier

  • Increases indoor comfort while helping reduce cooling energy costs
  • Reflects up to 97% of the sun’s radiant heat
  • Can help save up to 17% on cooling energy consumption during peak summer months
A radiant barrier that turns down the temperature and helps turn up the savings

Thermostat® radiant barrier sheathing reflects up to 97% of the sun’s radiant heat from a home’s attic and can help lower attic temperatures by up to 30°F. This improved energy efficiency makes Thermostat radiant barrier the ideal choice for new homes, additions and renovations in warm to hot climates.

Blue edge seal helps prevent moisture intrusion

Span and exposure rated sheathing with dimensional stability

No core voids, knots or splits

Quality base layer for roof sheathing applications

Available in 8’, 9’ and 10’ lengths


Available Sizes
Square Edge

3’-11 7/8” (1.216 m) x 7’-11 7/8” (2.435 m) – sized for 4’ x 8’

Square Edge

3’-11 7/8” (1.216 m) x 8’-11 7/8” (2.740 m) – sized for 4’ x 9’

Square Edge

3’-11 7/8” (1.216 m) x 9’-11 7/8” (3.044 m) – sized for 4’ x 10’

Building Code Performance Categories, Panel Thickness
7/16 CAT

0.418” (10.61 mm)

15/32 CAT

0.451” (11.45 mm)

19/32 CAT

0.578” (14.68 mm)

Thickness Tolerance

± 1/32” (± 0.79 mm)

Length/Width Tolerance

+0, –1/8” (+0, –3.2 mm)

Straightness Tolerance

± 1/16” (± 1.6 mm)

Squareness Tolerance

± 1/8” (± 3.2 mm)

Testing Agency

APA – The Engineered Wood Association


Exposure 1: OSB suitable for uses not permanently exposed to the weather. Panels classified as Exposure 1 are intended to resist the effects of moisture on structural performance as may occur due to construction delays, or other conditions of similar severity.

Code Fire Classification

Class III or C

Flame Spread Rating

75-200, smoke developed index <450

Building Code Compliance

PS 2-04



SFI Certified


Safety Data Sheets

Product FAQs

What is a radiant barrier?

A radiant barrier is a layer of reflecting aluminum placed in an airspace to block radiant heat transfer between a heat-radiating surface (such as a hot roof) and a heat-absorbing surface (such as conventional attic insulation and your ceilings).

How do radiant barriers “block” heat?
How do I install Thermostat radiant barrier sheathing?
If I use Thermostat radiant barrier sheathing, do I still need insulation?
Can Thermostat radiant barrier sheathing damage my shingles?
What are the biggest benefits of using Thermostat radiant barrier sheathing in attics?
Radiant barriers work in the summer months, what about the rest of the year?
How much can I save by using Thermostat radiant barrier sheathing?
Can I use Thermostat radiant barrier sheathing on vaulted ceilings or metal roofs?
Where else can I use radiant barrier sheathing?
Where can I get more information on radiant barriers?