The Cost of Building Materials in 2021: Are Fiberglass-Faced Gypsum Panels a Viable Alternative to Zip Sheathing?
Fiberglass-faced gypsum panels have been mentioned in several GBA articles when being considered as sheathing in a double stud wall assembly. My understanding is that they are advantageous due to their outward drying potential. When integrated with an all-in-one WRB, they should perform similar to ZIP sheathing except having greater permeance and weaker shear strength. I don’t actually know what the price of these gypsum products are, but I suspect they’re becoming more attractive due to the current price of wood sheet material. Are there any pros out there considering gypsum sheathing now more than a year ago? Curious because I’ll be building my own double stud pretty good house soon in British Columbia (6B).
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