Hello, I have a flue pipe requiring 2" clearance from combustibles. Would a fire-rated gypsum board be able to breach this barrier or would I need to go full cement board?
ToughRock Fireguard 45 Gypsum Board from Georgia-Pacific is a 1/2 in. interior wallboard manufactured with enhanced fire-resistant properties compared to 1/2 in. standard drywall or 1/2 in. lightweight