A high-quality roof can protect your property for many decades. Nevertheless, no roof lasts forever. How long will yours last?
An onsite inspection from a professional roofing contractor can give you a better idea of your roof’s remaining life span. Periodic maintenance can help it last longer, but six factors influence how soon — or how often — you may need roof repair or replacement.
1: Roof Material
Different roofing materials have different life expectancies.
California homeowners who choose asphalt shingles can expect their roof to last a few decades. Clay or concrete tiles, slate shingles and membrane systems typically last quite a bit longer.
The weather is your roof’s greatest foe.
Roofing systems are designed to withstand extreme conditions, including heavy rain, strong wind and hail. But eventually, weather extremes will take a toll on the structure’s integrity.
3: Sun Exposure
Some roof materials, such as metal and EPDM rubber membrane, are resistant to the sun’s damaging ultraviolet (UV) rays. However, any type of roofing can eventually degrade as a result of UV radiation.
Sun exposure also heats the roof, which triggers thermal shock, or expansion and contraction. Over time, this weakens the support structure and accelerates material degradation.
4: Roof Pitch
The pitch (angle) of a roof can affect its longevity.
Flat and low-slope roofs don’t shed water easily. Rain and melting snow can pool on the surface