Building Envelope > Garage Door Weatherstripping

Existing Conditions

Assuming commercial garage doors in fire stations, police stations, fleet garages.

Visual inspection and smoke pencil testing have shown that a significant amount conditioned air is migrating in or out through gaps between garage doors and their frames. This leads to drafts and discomfort in the door area, and also allows heating or cooling energy to escape.

Retrofit Conditions

Repair and replacement of weather-stripping of garage doors, is one of the most cost-effective energy conservation measures. Only commercial grade products should be used, and repair and replacement should be a regular maintenance item (generally every one or two years in high traffic doorways).

Further Benefits

Application Details

Issues and Concerns

References

This recommendation is in accordance with Measure BE10 of the CMHC manual on Energy and Water Efficiency in Multi-Unit Residential Buildings. The CMHC manual on Energy and Water Efficiency in Multi-Unit Residential Buildings can be found online at www.hwbinc.com/495-1003/introduction.html.

Analysis

Estimate average crack size on site, and use ASHRAE crack method for calculations. Weatherstripping will reduce loss by 2/3.