Broken seals allow dust, water, moisture, insects, and critters to enter your facility and cause unneces­ sary damage. Dock shelters are enclosures that provide a wiper seal against the trailer top and sides for high sealing efficiency. Loose seals cause inefficiencies in terms of lost heating and cooling and compromised air quality. In short, poor dock seals cost money. Dock Seals • Dock Shelters • Inflatable dock seals & shelters ALTA