Installation Guide
These steps are necessary:
1. Check the rafter alignment and determine if there
is uniform or random on-center spacing. Be sure
to use LP® TechShield® with the proper thickness for
the required on-center rafter spacing.
2. If the rafters are uniformly spaced, remove every
1x4-in. plank. (see Figures 1 & 2)
3. If the rafters are randomly spaced, remove every
other 1x4-in. plank. (Note: This method will reduce
the attic-exposed LP TechShield foil by up to 30%.)
4. Provide adequate roof ventilation according to
building code in your area.
5. Panel spacing on ends and edges should be 1/8".
6. Place LP TechShield radiant barrier sheathing panels
with the foil side facing down on the roof (toward
the attic air space). 3/4" minimum air space required.
(See Figures 3 & 4)
7. Fasten the panels a minimum of 6" on center at
supported panel ends and edges, and 12" on center at
intermediate supports. 8d nails are recommended.
8. Protect LP TechShield panels from moisture prior
to and during installation.
9. Use shingle underlayment (or 15# roofing felt) to
cover roof as soon as possible to protect panels
from exposure to adverse weather conditions.
Use 30# roofing felt if construction delays are
experienced.
10. Allow sheathing to adjust to atmospheric
conditions before shingle installation.
11. Follow the roofing manufacturer’s application
instructions.
Roof sheathing installation
for wood shake shingles.
Technical Bulletin No. TS-01101
LP® TechShield® Radiant Barrier Sheathing
© 2013 Louisiana-Pacific Corporation. All rights reserved. LP and TechShield are registered trademarks of Louisiana-Pacific Corporation. Printed in U.S.A. NOTE: Louisiana-Pacific Corporation
periodically updates and revises its product information. To verify this version is current, call 800-648-6893. 6/13 LPTS0183
Cal. Prop 65 Warning: Use of this product may result in exposure to wood dust, known to the State of California to cause cancer.
For a copy of the warranty or for installation and
technical support visit: www.lpcorp.com/techshield
Phone: 888.820.0325
Email: customer.support@lpcorp.com
Roofing
LP TechShield sheathing
foil facing down
3/4" minimum air space
Insulation
Figure 4
D
Metal roof shakes or panels
3/4" minimum air space
Figure 3
W T R S
Figure 1
Figure 2
Correct preparation
Incorrect preparation reduces the
eectiveness of LP TechShield
SFI-00003