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Save energy with door seals – stop drafts & retain warmth | Tormeister 24

Tormeister 24 Fachberatung erklärt Türabdichtungen für Außentüren und Nagerschutz

Daniel Schweighöfer |

Save energy with door seals – keep drafts out, keep warmth in

For steel doors – and with an adapter band also for wood, plastic, and aluminum. Ideal for basements, logistics, commercial buildings, garages, and side doors.

Why door gap seals make such a difference

Door gaps are small heat leaks – in the fall and winter, these losses add up. A suitable magnetic gap seal reliably closes the bottom edge, reduces drafts, and keeps out dust and unwanted guests.

  • Energy efficiency: less heat loss at the bottom edge.
  • Hygiene & protection: integrated rodent protection edge helps against mice & co.
  • Comfort: noticeably less cold air – employees and goods benefit.

For which doors? (including adapter band)

No drilling required, magnetic: Ideal for steel doors . For wood, plastic, or aluminum, use the self-adhesive MagAdapter Tape SMB 100 as a magnetic base – then the magnetic profiles will grip securely there, too.

To the collection: Door gap seals magnetically shortenable with rodent protection edge

Important: Not approved for fire doors. For fire doors, please refer to the relevant approvals.

Products & variants – quickly find the right length

Door gap seal 1.0 m

Magnetic, can be shortened, and features rodent protection. Sealing range approximately 4–55 mm – ideal for many side doors.

To the product 1.0 m

Suitable for steel doors up to approx. 65 mm thick.

Door gap seal 1.5 m

The "standard door width" ex works. Magnetic, can be shortened, rodent-proof – for hall and cellar doors.

To the product 1.5 m

Steel doors up to approx. 65 mm, gap 4–55 mm.

Door gap seal 2.5 m

Extra length for wide doors/double doors. Magnetic, can be shortened, rodent protection.

To the product 2.5 m

For larger widths – cut to size on site.

Adapter band for wood/plastic/aluminum

MagAdapter Tape SMB 100 creates a magnetic surface on non-magnetic frames. Self-adhesive , flexible, sold by the meter.

To the adapter band SMB 100

Tip: For side mounting, adapter strips are required on the right and left.

Rodent protection – secure pages

For gates and wide entrances: Rodent protection plates protect the side seals from bite damage – a perfect addition in logistics and production.

To the protective plates

Measurement & selection in 5 minutes

  1. Measure door width (clear width at the bottom edge) → select 1.0 m / 1.5 m / 2.5 m; simply shorten on site.
  2. Determine the largest gap (check several points) → Seal covers approx. 4–55 mm.
  3. Check the surface : steel (magnetic) → direct mounting; wood/plastic/aluminum → use adapter tape SMB 100.
  4. Operating environment : Humidity/dust/rodents? → Protect the rodent protection edge and sides if necessary.
  5. Fire protection note : Do not install on fire doors.

Quick selection: Standard side door → 1.5 m; basement/side door → 1.0 m; wide commercial door/double-leaf door → 2.5 m.

Quick assembly guide

Preparation

  • Clean the lower edge/profile (dry, grease-free).
  • Cut to length if necessary, deburr edges.
  • For wood/plastic/aluminium: Apply adapter tape SMB 100 and press firmly.

Assembly

  • Align the magnetic profile and place it evenly.
  • Test latch: Close/open door, check seal.
  • Fine-tune, then clean regularly (dust-free = better adhesion).

Locations: basement, logistics, commercial, garage

Cellar & Technology

Stops cold air & odors, fewer insects & humidity – better indoor climate.

Logistics & Hall

More stable temperatures in pre-zones, less dust ingress, protection against gnawing damage.

Garage & side doors

Less draft to the living area, clean separation from the outside space.

Economic efficiency & ROI

A sealed bottom edge quickly and noticeably saves energy. For example, a 1.5 m door with a 20 mm gap adds up significantly per heating season. The seal often pays for itself in a single season, and cleaning and pest control costs are also reduced.

parameter Guideline Practical tip
Useful life October–March Seal frequently used doors first
Gap size 4–55 mm coverable check the greatest extent at several points
material Steel or adapter band magnetic = direct mounting

FAQ

Does the seal fit every exterior door?

For steel doors directly – for wood, PVC, and aluminum with the SMB 100 adapter hinge. Not for fire doors.

How do I find the right length?

Measure door width: select 1.0 m / 1.5 m / 2.5 m and cut to size on site.

Does this help against mice and insects?

Yes, the integrated rodent protection edge helps protect against unwanted guests. Proper installation and regular cleaning increase its effectiveness.

Do I have to drill?

No. Magnetic mounting – for non-magnetic frames, first apply the SMB 100, then apply the seal.