Johns Manville GoBoard 1/4-in x 3-ft x 5-ft Polyisocyanurate Backer Board Sheet

What Customers Are Saying

Customers overwhelmingly praise this product as a superior alternative to traditional cement board, highlighting its lightweight design, ease of cutting, and effortless installation. Most report carrying multiple sheets with minimal effort and cutting quickly with basic tools like utility knives. Reviewers consistently note the physical relief and faster workflow compared to heavier alternatives. While acknowledging the higher cost, nearly all customers agree the premium is justified, calling it a game-changer for both professionals and DIYers. A few mention the material feels itchy and recommend wearing gloves during handling. Overall, customers enthusiastically recommend this as their new preferred substrate.