Replace torn weatherstripping with new adhesive-backed strip. Clean surface first.
Feeling a draft under your door? Hearing annoying whistling sounds when the wind blows? A torn weatherstripping not only wastes energy but also lets in dust, pests, and moisture. Damaged seals can increase heating bills by 10-15% and compromise indoor air quality.
The right weatherstripping can block drafts, reduce noise, and improve energy efficiency. In this guide, we’ll cover step-by-step repair methods, material comparisons, and pro tips to extend your seal’s lifespan. For severe damage, consider our recommended hardwood floor solutions to prevent moisture damage from leaks.
Key Takeaways
- Adhesive-backed EPDM rubber lasts 3-5 years vs foam’s 1-2 years
- Clean surfaces with rubbing alcohol for maximum adhesion
- Measure twice before cutting new weatherstripping
- Use silicone sealant for small tears under 1 inch
Step-by-Step Weatherstripping Repair Guide
Assessing the Damage
Inspect your weatherstripping for:
– Cracks or dry rot (common in rubber seals after 5+ years)
– Compression (if seal doesn’t spring back when pressed)
– Gaps wider than 1/8″ (place dollar bill in door frame – if it slides out easily, replacement is needed)
| Damage Type | Repair Solution | Expected Lifespan |
|---|---|---|
| Small tear (<1") | Silicone adhesive | 6-12 months |
| Multiple cracks | V-strip replacement | 3-5 years |
| Complete failure | Adhesive EPDM strip | 5-7 years |
Removing Old Weatherstripping
Use a plastic putty knife to avoid scratching the door frame. For stubborn adhesive, apply heat with a hair dryer for 30 seconds. Clean residue with a vinyl-safe cleaner.
Installing New Stripping
1. Measure the door perimeter with a flexible tape measure
2. Cut strips 1/4″ longer than needed for overlap
3. Peel backing gradually while pressing firmly
4. Use a roller tool to ensure full adhesion
Material Comparison
Foam Tape ($0.10/ft): Budget-friendly but degrades quickly in sunlight. Best for low-traffic interior doors.
EPDM Rubber ($0.30/ft): UV-resistant and flexible in cold weather. Our top pick for exterior doors.
Door Sweeps ($8-$15): Combine with side seals for complete protection. Ideal for uneven thresholds.
FAQ
Can I reuse old weatherstripping?
No – adhesive degrades after removal. Always install fresh material.
How often should weatherstripping be replaced?
Every 3-5 years for rubber, 1-2 years for foam. Inspect annually before winter.
What’s the best seal for pet doors?
Use heavy-duty silicone strips that resist claw damage. Avoid foam in high-traffic areas.
Final Thoughts
Proper weatherstripping repair can save $50-$100 annually on energy bills. For drafty sliding doors, consider combining with our laminate floor sealing tips for complete protection. Address tears promptly to prevent costly structural damage from moisture intrusion.