How often should flame retardant treatments be reapplied?

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    The frequency of re-applying flame retardant treatments depends entirely on the type of fabric and its maintenance schedule. For fabrics that are 'FR treated' (meaning the chemical was applied after weaving), the protection is not permanent. Professional standards generally recommend re-testing or re-treating these curtains every 3 to 5 years, or after every professional cleaning, as the chemicals can be washed away or broken down by UV exposure. In contrast, 'Inherently Flame Retardant' (IFR) fabrics never need re-application; the fire-resistant properties are part of the fiber itself and will last for the entire lifespan of the curtain. For luxury homeowners, keeping a record of when and how your curtains were treated is a vital part of home management. If you are unsure, a professional fire-safety inspector can perform a field test to ensure the fabric still meets the required safety standards. Opting for IFR fabrics is the most convenient and professional long-term solution for high-end residential safety.