How to Seal a Garage Roller Door From Rainwater

Ensuring your garage roller door (also known as a roller shutter or garage shutter door) is properly sealed is essential for preventing water from entering under the door. It’s also necessary to keep out dust, debris, draughts and pests like rodents and insects. Proper sealing not only protects your stored items but also improves insulation and energy efficiency. 

If you’re wondering “How do I stop water coming under my garage roller door”, this guide will help you figure out which roller door seal you need and how to install it.

Understanding Roller Shutters

Roller garage doors roll up into a compact coil above the door opening. This design is popular for both residential and commercial use thanks to the space-saving benefits. However, without proper sealing, just like any other type of door, roller shutters can allow draughts, pests and water to enter the garage. Effective seals can also help preserve longevity, so knowing how to seal a roller garage door is useful to get the most out of your investment.

What Type of Garage Roller Door Seal Do I Need To Keep Water and Draughts Out?

Here is a breakdown of the different types of roller door seals you might need for your roller garage door:

Wrap Around Rubber Door Seal

A wrap-around rubber seal is attached to the bottom of the roller shutter door to create a water-tight seal between the floor and the door. They are designed for roller shutter doors with a 75 mm T-bar section at the bottom. Installing this type of seal is crucial for preventing water from coming under your garage roller door.

Self Adhesive Foam Seal

Self-adhesive foam seals are simple to apply and ensure a superior seal for the tops and sides of your roller shutter doors. They can be easily cut to size and attached to all 75mm shutter 'T' bars via the adhesive strip on the back. Available in two variations, the self-adhesive EPDM foam seals are highly effective in wet conditions and the self-adhesive PVC Nitrile foam seals offer excellent UV resistance.

Garage Roller Door Brush Seal

Complete with robust nylon bristles, these industrial brush strips are fitted to the bottom of the roller shutter. They are an ideal heavy-duty solution for keeping draughts, dust and moisture out of garages with larger doors. 

Clip on Shutter Seal 

A clip-on shutter seal provides an affordable solution for keeping unwanted debris out of your garage. This seal attaches to the shutter guide at a 45-degree angle, pressing a brush strip against the shutter lath to create an effective draught-proof barrier.

How to Seal a Garage Roller Door - Step-by-Step

Many of the seals supplied by JA Seals are straightforward to attach but here are some instructions for fitting a bottom roller shutter door seal or an industrial brush strip to your garage roller door.

First, you’ll need to gather the following supplies:

• Tape measure
• Utility knife
• Drills or screwdriver 
• Cleaning supplies
• Garage roller door seals - choose the type based on gaps you need to fix

Preparation 

• Inspect the garage door to check for any damage or misalignment that could affect the sealing.
• Clean the surface and ensure the areas where the seals will be applied are clean for secure adhesion.

Installing A Bottom Roller Shutter Door Seal

• Measure the width of the door and use a utility knife to cut the bottom seal to the correct size. This seal is easy to install without adhesives or screws.
• Raise the shutter door to a comfortable working height so the bottom rail is easily accessible. Beginning from one end on the outside, press and clip one side of the wrap-around flap onto the T-shaped bottom rail. Continue this process along the entire length of the seal. Having an extra pair of hands to hold the other end of the seal will make this task much easier.

Installing a Garage Roller Door Brush Seal

• Start by choosing the ideal position on the bottom inside edge of the garage door. If needed, pre-drill holes in the seal carrier.
• Secure the industrial brush strip carrier with clamps or tape, or have a second person hold it.
• Once in place, mark the screw holes with a pencil, fasten self-tapping screws with a screwdriver or drill, and then remove any clamps. Finally, ensure the garage door closes properly and trim the ends of the seal if necessary.

To maintain your seals, regularly inspect them for any signs of wear and damage. Keep the seals clean by removing dirt and debris with mild detergent and water, especially for rubber types. Be sure to promptly replace any damaged or worn seals to ensure they remain effective.

Get a Replacement Garage Roller Door Seal from JA Seals

Sealing your garage roller door effectively is crucial to keeping your garage dry and preventing water from entering. By following these steps, you can ensure a tight seal that protects your belongings and maintains the integrity of your garage.

JA Seals supplies a range of top-quality seals for your roller shutter door at affordable prices. For more information or installation tips, contact our team who will be happy to help.

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