As with most things, the more insulation you opt for, the higher the price. Insulation with garage doors comes from two places�the materials of the door itself and insulating materials placed between layers. Less expensive insulated doors use simple polystyrene as an insulating agent. Aug 18, 2023
USE SILICONE BASED LUBRICANT ONLY If your rollers have black or white nylon rollers, do not spray the tires with lubricant. Lubricate the roller shafts only. Feb 20, 2017