NCIDQ IDFX 2025 – 400 Free Practice Questions to Pass the Exam

Treating fabric with chemicals is an effective method for slowing the spread of heat and flame from fabric to cushions. This process typically involves applying fire-retardant or flame-resistant treatments to the fabric. The chemicals work by altering the material's properties, making it less susceptible to combustion and reducing the rate at which flames can spread.

Fire-retardant treatments help to create a barrier that can delay ignition and mitigate the intensity of a fire. This is particularly important in upholstery, as cushions can be made from materials that are highly flammable. By choosing to treat the fabric with appropriate chemicals, interior designers and manufacturers enhance the overall fire safety of the furnishings, ensuring they meet safety codes and standards.

In contrast, options like using untreated fabric would not provide any flame resistance, applying decorative threads generally does not contribute to flame prevention, and reducing foam density could negatively impact comfort without addressing the fire spread issue. Thus, chemical treatment stands out as the most effective approach among the methods presented.