Gutex MULTITHERM 80 (3 1/8" stock size)

Applications Moisture resistant wood fiberboard insulation and weather resistive barrier in one, for exterior walls under rain screens. Can also be used as pitched roof insulation when protected with a Pro Clima membrane. Advantages Raw material for all GUTEX insulation boards comes solely from wood that is harvested and grown using sustainable forestry management practices Hydrophobic treatment (1.0% paraffin) allows boards to act as temporary weather and wind protection Tongue and groove edges mean that boards edges do not have to line up with rafters in the roof Boards are made using the dry process meaning that the boards contain 95% wood, and maximizes the use of this sustainable, recyclable natural resource Can be used above sheathing when protected by a ProClima roofing underlayment such as SOLITEX MENTO 3000 Connect or SOLITEX MENTO PLUS Can be installed directly over studs and rafters without sheathing when shear / structural is achieved by other means Properties R-value/in: 3.6 Thermal Conductivity: 0.040 W/mK Perm rating: 32 perm/inch (perm 20 @ 1 9/16”) Composition: 1% paraffin/ 4% polyurethane/ 95% wood