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Kingspan GreenGuard Type IV XPS Insulation Board comprises closed–cell extruded polystyrene (XPS) with a minimum compressive strength of 25 psi. It has high water resistance and R–value of 5.0 per inch of thickness. It is available in a square edge board, ship–lap edge board and a score board.
To meet the R13+5 prescriptive method requirements of the 2015 Energy Code in Zones 5, 6 and Marine 4, Use Kingspan GreenGuard R-5 (1″) XPS Insulation Board for walls sheathed with 25% or less structural sheathing.
Continuous Insulation (Ci) means creating an insulation blanket around the exterior of the structure. When you apply Kingspan GreenGuard R-5 XPS Insulation over studs, you create a wall with reduced energy loss through thermal bridging and less potential for moisture problems. With insulation on the exterior of the wall cavity, the dew point is moved outward, reducing the potential for condensation on the warm side of the wall cavity. And, since XPS Insulation does not absorb water, you create an additional barrier to water penetration from the exterior.
Kingspan GreenGuard R-5 XPS Insulation Board is available as square-edge (CM) or shiplap-edge (SL) sheets.
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