Firepro Firescreen products are flame stop cloth that maintain fire integrity when properly installed. These fabrics are used primarily in smoke curtains, welding, and theatre curtains. They may also be used as a component of movement joint seals where either the insulation criteria is waived or is provided by other means, or where insulation is not required. Note: These fabrics do not reduce heat transfer significantly, at high temperatures. They offer fire integrity, not insulation.