Aveți ferestre din PVC? Dacă observați această gaură - nu o atingeți! Iată de ce este importantă • Newsweek România

Drain holes in PVC window frames are essential for moisture drainage, preventing damage from water accumulation. These holes should not be sealed, as doing so can lead to corrosion, rot, and increased condensation issues. Regular maintenance involves cleaning these holes to ensure they remain unobstructed, allowing proper water flow. Some manufacturers provide caps for these openings, but they must allow moisture to escape. Understanding the function of these drainage holes is crucial for maintaining window integrity.