Although tiny the gap beneath garage doors allows air draughts and rainwater while attracting leaves along with unwanted pests. Weather seals on garage doors eventually show signs of wear due to normal ageing. The rubber material deteriorates while small sections detach from the weather seal which results in ineffective garage door protection against outside elements.
The process of installing fresh weather seals remains easy to perform. The installation of new weather seals requires simple tools that you can manage during one afternoon.
What You’ll Need
DIY shops commonly maintain a supply of garage door weather seals for their customers. Take a measurement of your door width before visiting the store. Measure your standard single garage door before buying weather seals because a typical door needs 2.5 metres of seal.
Grab these bits before starting:
– New bottom seal (measure your door width)
– Screwdriver
– Utility knife
– Hammer
– Silicone spray
– Cleaning cloth
– Mastic (optional)
Types of Garage Door Seals
Multiple points exist for sealing garage doors. The primary sealing point runs at the bottom while side and top seals form additional sealing points.
A range of forms exists for bottom seals as a sealing option. The door bottom features tracks that accept T-shaped seals. The P-shaped design extends to cover the entire edge perimeter. Brush seals are effective at sealing doors installed on uneven floors.
The installation area for side and top seals is located on the frame instead of the door itself. The door becomes completely weather-tight when these seals press against it during closure.
Removing the Old Seal
Your first task must be to eliminate the existing deteriorated seal.
The majority of bottom seals get their position from either metal or plastic retainers. The door seal has either metal screws or built-in channels which maintain its position.
Begin the process by unscrewing the seal and pulling out the old rubber material. Do not discard those screws since you will require them afterward.
You need pliers to grasp the old seal at one end before you pull it out with force from the channel-type retainer. The seal will need a firm pull before it emerges from its position. A small amount of silicone spray works as a solution to break loose difficult-to-remove seals.
Examine the retainer to check for signs of damage or rust formation. The retainer requires immediate replacement before installing the new seal.
Preparing the Area
After removing the old seal completely clean the surface area. Remove all traces of dirt and old sealant along with deteriorated rubber pieces from the area.
The new seal requires proper attachment to a clean surface during this cleaning operation. The presence of dust and debris will prevent the seal from creating a proper tight fit.
You should use wire wool or a wire brush to eliminate rust from metal components. Apply rust converter if needed.
Fitting the New Bottom Seal
Got your area clean? Time to fit the new seal.
For screw-attached retainers:
1. Place the new seal inside the retainer
2. Line up the screw holes
3. Begin by inserting the screws from the centre and move toward the outer edges
4. Cut off any remaining seal material using a precise knife blade.
For channel-type fittings:
1. Apply silicone lubricant to the channel through spraying.
2. Push the seal from one end of its installation point
3. You should tap the seal gently with a hammer while moving across the area
4. Trim any excess
The seal needs to fit the holder without causing excessive stretching. A seal that is too tight will eventually cause damage through pulling forces.
Side and Top Seals
Side seals are installed to the door frame through nailing or screwing procedures. The seal functions as a barrier as the door closes in its direction.
To replace these:
1. Pry off the old seal with a screwdriver
2. Clean the frame
3. Set the new seal at a slight compression point which will occur when the door shuts
4. Nail or screw into place
5. Check the door closure by pushing it shut while feeling minimal resistance.
Top seals operate in a matching manner by attaching to the door lintel.
Testing Your Work
Close the garage door fully. Check for daylight penetration from inside the garage with the lights turned off while observing the door edges.
Use your hands to check for air movement on both the door bottom and sides. There shouldn’t be significant gaps.
Perform multiple tests by opening and closing the door. The compression of the seal should happen smoothly without any sticking or dragging motion.
Check for seal issues then adjust their placement. A small amount of mastic paste can be used to seal cracks that appear in uneven surfaces.
Maintenance Tips
Proper care will make your new seals endure longer periods of time:
Spray rubber seals with silicone lubricant once in spring and once in fall.
Regular cleaning of the seal area should be performed to stop dirt accumulation.
Regular checks for seal damage should happen after severe weather events or extremely cold temperatures.
Never direct pressure-washers toward the seal positions.
Regular combing of brush seals helps remove trapped debris from their surface.
It is a suitable practise to inspect your garage door seals particularly during winter months. Temperature variations help you detect draughts more easily thus allowing you to identify potential issues early on.
Quality garage door seals maintained properly will survive between three to five years before requiring new installation.