FAQ Knowledge Articles

Like many new products, our windows with Ultrex may have an odor associated with them for a short time.  This is similar what is experienced with cars or carpet.  When new, there can be a distinct and very recognizable “new smell” associated with them, familiar to most people.
As with other composite materials, Ultrex® pultruded fiberglass can off-gas a small amount.  The amount of off-gassing varies with environmental conditions such as temperature, ventilation, and others.  This process is a characteristic of the material and is not a product defect. At normal atmospheric temperatures, Ultrex off-gasses at levels well below standards established by OSHA, NIOSH, and ACGIH.
The Window and Door Manufacturing Association (WDMA) has specific test standards for the components used to construct windows and doors.  As a member of the WDMA, the Marvin Family of Brands strictly adheres to those standards.  We have chosen only materials that have no Volatile Hazardous Air Pollutants (VHAP).
Numerous environmental influences affect the duration of time it takes for building material odors (foam insulation, sealants, caulking, thermoset composites, and others) to dissipate.  The size of the home or room, home ventilation, and room environment tend to influence the detection and duration of building material odors. Under normal conditions the odor will dissipate over time and no special ventilation is needed.