Profile: Nailor Industries Of Texas is engaged in the production of air control and distribution products. Our air control products include curtain fire dampers, ceiling radiation dampers, smoke dampers, combination fire/smoke dampers, control dampers and duct access doors. Our air distribution products include ceiling diffusers, linear diffusers and bar grilles, grilles & registers, plenum slot and light troffer & fire rated diffuser. Our ceiling dampers are designed to function as a heat barrier in air duct openings penetrating fire resistive membrane ceilings.