PlastiSpan® Recessed Nailer (RN) insulation applied to the exterior of above-grade wood frame walls is a great way to increase the energy efficiency of that portion of the home. PlastiSpan RN insulating sheathing is manufactured with the long edges routed out to fit a 19 x 64 mm (1” x 3”) nailer for the installation of exterior cladding.

PlastiSpan RN insulation installed over the exterior of wood frame walls increases the effective thermal resistance (/RSIeff Reff) of the total wall assembly because it eliminates thermal bridges due to wood studs (which leave approximately 20% of the wall area without insulation). PlastiSpan RN has recessed edges on the long edges of the board to fit strapping.

Other thicknesses are available upon request to meet the R-value requirements of your project.

The addition of PlastiSpan RN insulation increases the effectrive R-value of a wall assembly by eliminating thermal shorts due to wood studs which leave a large portion of the wall area un-insulated.

  • Meets all building code requirements
  • Available in Type 1, 2 and 3
  • R-values of 3.75, 4.04 and 4.27 per inch respectively
  • Closed cell insulation resists moisture
  • Easy to cut and install
  • Maintains R-value
  • A cost-effective insulation for higher energy efficiency and savings

Material Properties of PlastiSpan® RN Insulation

Standard Dimensions
Width Length Thickness
406 or 610 mm
(16" or 24")
2440 mm
(8 ft.)
Minimum 38 mm
(1 1/2" in.)
PlastiSpan RN Insulation Material Properties ASTM Test Method Units Property Values
Type 1 Type 2 Type 3
Thermal Resistance
Minimum per 25mm (inch)
C518 m20C/W
(ft2•h•0F/BTU)
0.65
(3.75)
0.70
(4.04)
0.74
(4.27)
Compressive Resistance
Minimum @ 10% Deformation
D1621 kPa
(psi)
70
(10)
110
(16)
170
(25)
Flexural Strength
Minimum
C203 kPa
(psi)
170
(25)
240
(35)
300
(44)
Water Vapour Permeance
Maximum
E96 ng/(Pa.s.m2)
(Perms)
300
(5.0)
200
(3.5)
130
(2.25)
Water Absorption
Maximum
D2842 % By Volume 6.0 4.0 2.0
Dimensional Stability
Maximum, 7 Days @ 70± 2℃ (158±40F)
D2126 % Linear Change 1.5 1.5 1.5
Limiting Oxygen Index
Minimum
D2863 % 24 24 24
Other Standard & Custom thicknesses available upon request.
Standard sizes range from; 2x4,2x8,4x4,4x8.

Next Steps


Talk to a Rep

Talk to an EPS Product Specialist in your area who will help you with products and pricing.


Connect with Us

Send us your questions and one of our EPS experts will get back with you.