Many engineered hardwood products are approved for use over radiant heat with a maximum surface temperature of 80–85°F. Solid hardwood is generally not recommended over radiant heat due to excessive seasonal movement. LVP products vary — some are rated for radiant; others are not, and exceeding temperature limits causes warping and joint separation. Porcelain tile is the most radiant-heat-compatible flooring available. RainFire Builders reviews manufacturer specifications for every product installed over a radiant system and coordinates with our HVAC team to confirm the system is set up within flooring tolerances.