How The Los Angeles Sun Damages Your Roof

Jun 26, 2022 | Blog, Los Angeles, Roofing

The Sun is the life source for all living things on Earth. It lights up the sky, helps plants and trees grow, provides us with vitamins and minerals, and allows us to generate and store solar energy. As phenomenal as the sun can be, it can also be quite destructive. Its UV rays, with prolonged exposure, can scorch your home’s roofing system.

Providing your home with the best tools to combat the sun’s damaging effects is our top priority at Guardian Roofs. We believe in equipping your home with heat-resistant roofing materials so that your home has adequate protection for decades.

These are some ways the sun can damage your home’s roofing system.

Cracking and Breaking roof Los Angeles, CA

Cracking and Breaking

Prolonged exposure to the sun may cause your roofing materials to dry out and eventually crack and break. This process tends to occur much faster for homes in dry and arid climates.

Some roofing materials are better than others at resisting the sun’s harmful UV rays. Roofing materials like metal are excellent at reflecting these UV rays, thus reducing their damaging effects.

Thermal Shock

Extreme day and night temperatures may lead your roofing materials to undergo thermal shock. Thermal shock happens when the heat causes the materials to expand, and the cold causes the materials to contract.

This continuous expansion and contraction process may lead to the degradation of your roofing materials and their eventual breakdown.


Your beautiful colored roofing system may look a little worse for wear due to the bleaching effects of the sun’s rays.

A bleached roof will likely make your home look old and aged and thus ruin your home’s curb appeal. Luckily your roof can easily be repainted or recoated and returned to its former glory.

Crumbling roof Los Angeles, CA


Much like the cracking and breaking of roofing materials, the Sun’s UV rays combined with the natural oxidizing of materials may lead to your roofing materials becoming brittle and eventually crumbling.

If you notice any sun damage occurring on your roof, it’s vital to schedule an inspection with your local roofing company. Having an idea of how bad the damage is essential to your roof’s lifeline. You’ll be able to decide whether your roofing systems require repairs or an entire roof replacement. For all roofing inquiries, give Guardian Roofs a call today!