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Moisture resistant wood fiberboard is very sustainable insulation and weather-resistive-barrier-in-one, for exterior walls under rainscreens. Lead time of approximately 7 weeks. >>Read More

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GUTEX Multitherm moisture resistant wood fiberboard is very sustainable insulation and weather-resistive-barrier-in-one, for exterior walls under rainscreens. High quality single-ply construction, tong & groove edges and homogeneous cross section make the board water resistant, highly insulative and windtight.

Characteristics:

  • R-value: ~ 3.7 / inch thickness; U-value 0.039 W/mK
  • Perm rating: 44/inch
  • Ultratherm

    The tongue and groove edges mean that boards’ edges do not have to line up with studs in wall. The consistently uniform board dimensions make installation quick and easy, combined with its superior moisture resistance due to hydrophobic treatment (0.5% paraffin). This means that by adding this board on the exterior, the building is clad, weather and wind protected in one step.

    The dry process, means that the boards contain 95% wood, and maximizes the use of this sustainable, recyclable natural resource. It is made in Germany and biologically safe (natureplus® certified), and contains only 4% binder (polyurethane). The board is ideal for upgrading the thermal insulation of existing structures, since it is vapor open , insulative and reduces thermal bridging. Furthermore it’s exceptional specific heat capacity, can help keep the building cool during hot summer days.

  • Gutex Multitherm Spec Sheet
  • The GUTEX Wood Fiber Board Primer: vapor open continuous insulation & WRB
  • Introduction to GUTEX
  • Alford, MA: GUTEX Roof Makes Sustainable High Performance
  • Testing data for Multitherm per ASTM E84 – Flame Spread, Smoke Spread
  • FSC Certificate
  • GUTEX Environmental Product Declaration (EPD)
  • 475 High Performance Building Supply

    475 High Performance Building Supply