Air Infiltration, Energy Loss & Building Envelope Compliance Guide
Calculate commercial door air infiltration, HVAC energy loss, and CFM leakage. Lab test data confirms up to 98.5% draft reduction with SEALEZE brush seals.
Air Infiltration & Energy Loss Analysis
Independent Laboratory Test Data (ASTM E283) & Commercial ROI
Unsealed commercial door perimeters, loading dock leveler pits, and overhead bay doors are among the highest contributors to building envelope energy leakage. Independent testing under ASTM E283 demonstrates that SEALEZE® Therm-L-Brush seals eliminate up to 98.5% of air leakage compared to unsealed doors, dramatically reducing building heating and cooling loads.
Confirmed by independent testing lab
HVAC energy cost recovery
Meets 90.1, IECC & LEED Criteria
Annual Energy Loss by Opening Type (Estimated)
Based on ASHRAE 90.1 air infiltration models at average 15 MPH wind velocity:
| Opening Type & Gap Size | Unsealed Air Loss (CFM) | Sealed with SEALEZE (CFM) | Annual HVAC Cost Savings |
|---|---|---|---|
| Commercial Entry Door (1/4" Undercut) | 145 CFM | 4 CFM | $450 - $800 / year |
| 10' x 10' Commercial Overhead Door | 420 CFM | 12 CFM | $1,200 - $2,200 / year |
| Dock Leveler Pit (38 Linear Ft Gap) | 580 CFM | 18 CFM | $1,600 - $3,100 / year |
| Aviation Hangar Door (100' Span) | 2,400 CFM | 75 CFM | $6,500 - $14,000 / year |
Frequently Asked Questions
Q:How much energy is lost through unsealed commercial overhead and dock doors?
Independent lab test reports confirm that an unsealed 1/4" perimeter gap around a commercial door leaks over 150 CFM of conditioned air per linear foot at standard wind pressures, costing commercial facilities between $500 and $2,400 per door annually in wasted heating and cooling.
Q:What percentage of air infiltration do SEALEZE brush seals stop?
In third-party laboratory air permeability testing according to ASTM E283, SEALEZE Therm-L-Brush seals eliminated up to 98.5% of air leakage compared to unsealed doors.
Q:Do SEALEZE brush seals qualify for LEED and energy efficiency utility rebates?
Yes. By reducing building envelope air permeability and supporting ASHRAE 90.1 / IECC compliance, SEALEZE brush weatherseals contribute to LEED Energy & Atmosphere credits and qualify for commercial weatherization utility incentives.
Ready to Order or Require Custom Engineering Sizing?
SEALEZE® application engineers provide custom brush designs, CAD files, and immediate quote turnaround for commercial facilities and OEMs.
Providing innovative sealing solutions, guiding, positioning, and static dissipation for industrial applications.