Gap seals for gates and doors – save energy, increase security
Small gaps, big impact: Gap seals protect gates and doors from rodents, mice, rats, vermin, drafts, moisture, dust, and noise. They improve energy efficiency, increase security, and extend the lifespan of your gate system. This guide explains everything you need to know about gap seals – for sectional doors, sliding doors, loading equipment, and steel doors.
1) Why gap seals are so important
Sectional doors, sliding doors, industrial doors, and steel doors all have one thing in common: They're constantly moving and often leave small gaps. These gaps are inconspicuous, but can lead to major problems:
- Energy losses: Warm air escapes in winter, cool air in summer.
- Drafts & moisture: uncomfortable rooms, higher heating costs, corrosion.
- Dust, rodents & insects: pollution and hygiene risks, especially in industry & logistics.
2) The most important advantages at a glance
- Energy efficiency: saves heating and cooling costs.
- Environmental protection: keeps out dust, dirt and water.
- Noise protection: reduces disturbing noises from outside.
- Security: protects goods, machines and people.
- Durability: extends the lifespan of gates and doors.
3) Areas of application of gap seals
Sectional doors
Gap seals for sectional doors seal the floor, sides, and transitions. They prevent rodents, drafts, water, and dust—ideal for garage and industrial doors.
Sliding doors
Gap seals for sliding doors close the gaps on the sides of sliding doors, keeping living spaces and industrial halls free of dust and vermin.
Loading technology
Gap seals for loading ramps are mandatory to ensure cold chains and hygiene in logistics centers. They prevent energy loss and protect goods.
Steel doors
Steel doors also have gaps – especially at the bottom. Door seals for steel doors perfectly seal side doors, cellar doors, or fire doors. One example is the Peddoormag Gap Seal Velvet 1250 mm : It is mounted on the door leaf, reliably seals the floor, and is ideal for retrofitting.
4) Technology & Materials
Gap seals are available in many designs:
- EPDM rubber: durable, weather-resistant.
- Silicone: elastic, flexible even in cold temperatures.
- Brush seals: block dust and insects.
- Magnetic seals: strong adhesion, easy installation.
- Adapter tape: for non-magnetic surfaces.
5) Magnetic systems & adapter tape
Magnetic gap seals are particularly practical. They adhere securely and are easy to retrofit. For wooden or aluminum doors, there is an adapter strip that serves as a base. This makes all doors and gates
6) Installation & retrofitting – step by step
- Clean and dry the surface.
- Cut the seal to length.
- Attach magnetically or with adapter tape.
- Close and check if the gap disappears.
7) Care & Lifespan
- Wipe regularly, keep clean.
- Check for cracks, wear and elasticity.
- Replace every 5–10 years, depending on usage.
8) Buying advice – which seal is suitable?
| Gate/door | Recommended sealing | Advantage |
|---|---|---|
| Sectional garage door | Magnetic floor seal | Protection against drafts and water |
| Sliding door industry | Magnetic floor seal + adapter tape | Dust & insect protection |
| loading ramp | All-round gap sealing | Hygiene & Energy Efficiency |
| Steel door side entrance | Magnetic door seal (e.g. Peddoormag) | Easy retrofitting, reliable sealing |
9) Future of gap seals
- Sustainable materials: more recycling, less resource consumption.
- Optimized profiles: better insulation values, quieter operation.
- Smart Solutions: Sensors monitor sealing and report defects.
