15 8 月, 2025
🔍 Why Does Leakage Happen?
During old window replacement, removing the original frame often leaves gaps between the new PVC window and the wall. If these gaps aren’t properly sealed, rainwater seeps through, leading to damp walls, mold growth, and even structural damage over time.
🛠️ Foolproof Prevention Techniques
To ensure a watertight seal, follow these critical steps:
1. Prep the Surface – After removing the old frame, use cement mortar to level the window opening. This creates a smooth base for the new installation.
2. Secure the Frame – Fix the PVC window firmly in place, ensuring proper alignment.
3. Fill Gaps with Expanding Foam – Apply PVC foam sealant around the frame. Once cured, trim it flush for a neat finish.
4. Double-Seal with Silicone – For maximum protection, apply weatherproof silicone sealant on both the interior and exterior edges of the frame. This dual-layer defense blocks moisture effectively.
💡 Why PVC is the Smart Choice
Unlike traditional materials, PVC won’t rust, rot, or warp, making it ideal for long-term weather resistance. When installed correctly, it provides lifetime leak-proof performance—keeping your home dry, quiet, and energy-efficient.
Pro Tip: Always hire experienced installers—precision matters! A well-sealed PVC window not only prevents leaks but also enhances insulation, saving energy costs year-round.