Agepan Functional Wood

Credit: Peak Building Products

What makes this product green?

  • Reduces heating and cooling loads
  • Avoids hazardous ingredients
  • Prevents moisture or air quality problems
  • Information transparency


Agepan, manufactured in Germany by Glunz AG and imported in North America by several Passive HouseA residential building construction standard requiring very low levels of air leakage, very high levels of insulation, and windows with a very low U-factor. Developed in the early 1990s by Bo Adamson and Wolfgang Feist, the standard is now promoted by the Passivhaus Institut in Darmstadt, Germany. To meet the standard, a home must have an infiltration rate no greater than 0.60 AC/H @ 50 pascals, a maximum annual heating energy use of 15 kWh per square meter (4,755 Btu per square foot), a maximum annual cooling energy use of 15 kWh per square meter (1.39 kWh per square foot), and maximum source energy use for all purposes of 120 kWh per square meter (11.1 kWh per square foot). The standard recommends, but does not require, a maximum design heating load of 10 W per square meter and windows with a maximum U-factor of 0.14. The Passivhaus standard was developed for buildings in central and northern Europe; efforts are underway to clarify the best techniques to achieve the standard for buildings in hot climates. building product dealers, is a line of vapor-permeable wood fiber products. Agepan THD, an insulation appropriate for both interior and external applications, contains no added formaldehydeChemical found in many building products; most binders used for manufactured wood products are formaldehyde compounds. Reclassified by the United Nations International Agency for Research on Cancer (IARC) in 2004 as a “known human carcinogen.", though it is bonded with PMDI, an isocyanate. Agepan THD has an R-valueMeasure of resistance to heat flow; the higher the R-value, the lower the heat loss. The inverse of U-factor. of R-3 per inch. It is available in a variety of sizes and thicknesses, as well as in either square edge or tongue and groove styles. Other products include floor and roof panels, OSB, and cellulose insulationThermal insulation made from recycled newspaper or other wastepaper; often treated with borates for fire and insect protection.. An EPD was conducted for Agepan in accordance with ISO 14025 and is available for review via the German Institute of Construction and Environment.


Manufacturer Information

Peak Building Products
301 White St. S.W.
Watertown, MN 55388
Phone: 651-925-0866

Listed in: Board Insulation, Insulating Sheathing, Sheathing (including Plywood & OSB), Subflooring