Kingspan Insulation
Kingspan Group

XPS TYPE IV 25 PSI BOARD

GreenGuard Type IV 25 PSI Insulation Board is an ideal exterior insulation, meeting your needs for multiple applications. Its extruded polystyrene (XPS) construction provides superior moisture resistance. And since it does not absorb moisture, it retains its insulating properties over time. With an R-Value of 5.0 per inch of thickness, the board increases the energy efficiency of your structures. Plus it’s lightweight, easy to handle, and easy to cut with a knife. Use this insulation for below slab, cavity wall, and foundation applications. It meets and exceeds all Type IV and Type X specifications.

25_PSI_Cavity_wall Kingspan GreenGuard

Cavity Wall

Moisture resistance and R-Value retention make GreenGuard XPS an excellent choice for exterior cavity wall applications. It provides a thermal break over steel studs and helps reduce the potential for condensation in block-backed cavity walls. Score board is 48” wide sheets designed to snap into 16”, 24”, and 32” widths for a convenient fit between brick ties in block-backed exterior cavity walls.

Below Slab Commercial CMYK

Below Slab

Suitable for normal loading situations, including radiant floors. See your GreenGuard representative for specific loading requirements.

Steel_stud_foam-Full Size

Stud Wall Continuous Insulation (Ci)

GreenGuard® Type IV Insulation Board on the wall exterior creates a layer of continuous insulation (Ci) that improves energy efficiency by insulating the entire wall area and reducing thermal shorts though the studs. This exterior application moves the dew point outward to reduce the potential for moisture within the wall cavity. And, GreenGuard® XPS insulation creates an additional barrier to moisture penetration from the wall exterior.

25_PSI_Foundation Kingspan GreenGuard

Foundation

Insulating the exterior of a foundation reduces energy loss and helps control moisture inside the basement. In addition, a layer of durable XPS on the basement exterior helps protect the waterproofing membrane from damage during backfilling. The moisture resistance and R-Value retention of XPS make it an excellent choice for foundation insulation.

DIMENSIONS / PACKAGING
Thickness 1" 1 1/2" 2" 2 1/2" 3" 
Square Feet/Pallet 3,072 2,048 1,536 1,152 960
Pieces/Pallet
2'x8'
192 128 96
Pieces/Pallet
4'x8'
96 64 48 36 30
Typical Physical Properties 
Property Test Method 1" 1 1/2" 2" 2 1/2" 3"
Product Type 1 ASTM C 578 IV IV IV IV IV
Thermal Resistance,
R-Value2
(ºF-ft²-h/Btu)
ASTM C 518
(@ 75ºF Mean
Temperature)
5 7.5 10 12.5 15
Thermal Conductivity
(Btu-in/hr-ft²-ºF)
ASTM C 518
(@ 75ºF
Mean Temp., k)
0.2 0.2 0.2 0.2 0.2
Compressive Strength
(min., psi @ 10% Deflection)
ASTM D 1621 25 25 25 25 25
Water Absorption
(Max.% by Volume)
ASTM C 272 0.1 0.1 0.1 0.1 0.1
Water Vapor Permeance
(perm) 4
ASTM E 96
Desiccant Method
1.5 <1.5 <1.5 <1.5 <1.5
Fire Characteristics3
Flame Spread
Smoke Developed
ASTM E 84/UL 723
15
140

15
140

15
140

15
140

15
140
Density
(min. pcf)
ASTM C 303 1.55 1.55 1.55 1.55 1.55

1 GreenGuard Type IV Board meets or exceeds Type X specifications.

2 Specimens were aged and tested in accordance with FTC Rule (16 CFR, Part 460) and ASTM C 578.

3 These numerical flame spread and smoke ratings are not intended to reflect hazards presented by this material under actual fire conditions. See UL Classification Certificate A183.
4 Permeance is 1.5 for 1″ thick board. Permeance typically decreases as board thickness increases.