Gate Weatherproof Seals for Glass and Aluminum Entry Gates

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Weatherproof seals for glass and aluminum gates are gaskets, brush strips and drip edges fitted at the gate's edges, bottom and frame joints to block rain, wind-driven dust and debris. The right seal depends on the gate's material, its gap to the post and threshold, and how much it moves when opened. Techno Kol Uzi measures each gate on site and specifies the sealing system to suit.

Why gates let rain and dust in

Even a well-hung gate leaves small gaps. Wind pushes rain sideways under the bottom rail, and fine dust works through the hinge side and the latch side. Glass panels can also let water track along the frame where the glazing meets the metal, while aluminum profiles often have hollow channels that collect water if drainage is poor.

Most leaks come from three places: the bottom edge, the latch and hinge sides, and the joints where panels meet the frame.

Types of seals for glass and aluminum gates

Each seal type suits a different job:

Brush strips handle dust and light wind on sliding and swing gates.
EPDM or silicone gaskets compress against the frame and stop water well.
Drip edges and bottom sweeps deflect rain away from the threshold.
Glazing gaskets seal the glass to the aluminum or steel frame.

Combining two or three of these usually gives the best result.

Measuring for a proper seal

A seal only works if the gap it covers is known. Our team measures the clearance between the gate and posts, the gap under the bottom rail, and how far the gate swings or slides. We also check for uneven ground, because a gate that sits higher on one side will leak there first.

We record these measurements in a written specification before any material is chosen.

Material and finish considerations

Seals must cope with sun, salt air and cleaning. Rubber and silicone compounds should be UV-resistant, and brush fibers should be easy to replace. Aluminum profiles are generally left unpainted or powder-coated, so the seal channel should be cut cleanly to avoid chafing the finish.

For steel gates, we check that the coating is intact at the seal contact points before fitting, since a rough spot can wear a gasket quickly.

How we fit and finish the sealing system

At our factory at 37 Rival Street, Tel Aviv, we prepare the gate frame and machine the seal channels, then test the fit on the bench where possible. Finishing steps such as hot-dip galvanizing or powder coating are completed before installation so the seal sits on a sound surface.

On site, we adjust hinges and latches so the gate closes evenly, which matters more for sealing than the seal itself.

Maintenance to keep the seal working

Clean the gasket and brush strips every few months to remove grit.
Check for hardened, cracked or flattened rubber once a year.
Rinse the bottom track so debris does not hold water against the seal.
Tighten or adjust hinges if the gate starts dragging.

Replacing a worn strip early is far simpler than repairing water damage inside the gate.

Frequently asked questions

Can seals be added to an existing glass or aluminum gate?

In many cases yes, as long as the frame has room for a strip or gasket. We check the profile and clearances on site before recommending an addition.

Which seal stops rain under a gate best?

A bottom sweep or drip edge combined with a compression gasket usually performs best against rain. Brush strips alone are better for dust than heavy water.

Will a seal stop a gate from closing properly?

It should not, if the gap is measured correctly. A seal that is too thick will make the gate hard to close, so the specification always accounts for the clearance.

Do electric sliding gates need different seals?

Yes. Sliding gates move along the track, so seals must allow movement without catching. We choose brush or low-friction profiles for them.

Common mistakes to avoid

Choosing a seal without measuring the gap, or fitting thick gaskets that stop the gate from closing properly. Ignoring hinge sag and uneven ground, which leave a leak even with a good seal.

Our recommendation

Start by fixing the gate alignment and bottom clearance, then add the seal that matches the remaining gap. Ask for a written specification based on on-site measurements before ordering.

Summary

Effective gate sealing combines the right seal type with accurate measurement and proper alignment. A small investment in the right system keeps rain and dust out for years.

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