Brush Weather Seals That Actually Seal

Memtech brush weather seals are designed and field tested for both hot weather applications—keeping cool air in—and cold weather applications—keeping cold air out. These seals are used across a wide range of commercial and industrial weather sealing applications.

Door seals are the most common application of brush weather seals. Memtech manufactures custom designs for personnel entry doors, double entry doors, hollow metal doors, overhead doors, sliding doors, swing doors, rolling steel doors, dock levelers, and vertical lift doors.

Brush weather seals are uniquely effective because they seal more completely than solid vinyl or neoprene while remaining virtually indestructible. Individual bristles flex and nest together along uneven surfaces, creating a consistent seal without binding or excessive wear.

A typical 3’ × 7’ exterior entrance door can represent the equivalent of a 30 square inch opening due to perimeter gaps as small as 1/8”. Multiply that by the number of doors in a facility and it becomes clear where significant heating and cooling losses occur.

According to ASHRAE test data, each exterior door can cost between $45 and $100 per year in heat loss alone—before accounting for air conditioning, dust, insects, noise, and general discomfort. Memtech brush weather seals provide an efficient, long-term solution for sealing these gaps.