roofing antioch

San Jose is a city that’s no stranger to extreme weather. On average, the city experiences more than 100 days of over 90 degrees every year and an average of 15 inches of rain annually. In San Jose, these weather conditions may damage your roof. 


Yorkshire Roofing offers contracting services for roofing, solar installations, gutter services, and home insulation. For more information about our services, call us at (800) 794-7444 or request a FREE quote here


To understand how these drastic changes affect your roof and prevent future problems, you need to know about the elements that make up San Jose’s climate.


The humidity level in San Jose, California, is also a big factor to consider when it comes to roof maintenance. High humidity levels can cause mold and mildew to grow on your roof, leading to leaks.


If you notice mold or mildew growing around your house, you must have it removed immediately. Mold is usually black or greenish, while mildew is typically white or grayish-white in color.


Mold and mildew aren’t just unsightly—they can weaken the structure of your roofing material as well. They are also capable of causing discoloration in your shingles.


Thus, making them less effective at protecting against water damage caused by high winds, heavy rains, or other extreme weather conditions. When this happens, they become brittle and easily break apart from one another.

Sun exposure

The sun is the primary reason why roofs begin to fail. Sunlight contains ultraviolet (UV) rays, which can damage your roof and its shingles.


Extra heat in the air causes the shingles to curl upwards or sideways. They will also dry out over time after being exposed to high temperatures.


And if you have a metal roof, you should know it’s not immune from UV damage. The metal will eventually rust and corrode, leading to leaks and other problems with your home’s structure.


You can install a new roof system for intense sunlight to protect your roof from UV damage. It will help keep your roof looking great for many years!


The temperature plays a huge role in the life of your roof. If you’re wondering why temperature affects everything from the materials used to build your roof to its installation and maintenance.


It also affects asphalt shingles, which can crack and wear down over time if exposed to extreme heat or cold. A professional should inspect your shingles every five years if extreme weather fluctuations are more common than usual.


The same goes for asphalt membranes, metal roofs, and tiles. These materials also lose their durability when exposed to extreme temperatures over long periods—just like cars do!

Water damage

The roof is not waterproof and will leak if the water gets in. Water can get into your attic, walls, and ceilings through holes, cracks, gable vents, skylights, and chimneys.


The weather in San Jose is very hot during the summer months (May-September). This heat causes condensation that collects inside your house’s air ducts and insulation making them damp with moisture.


This moisture can cause mold to grow on the wood framing around your home’s walls, leading to structural damage if left unchecked for too long.


The list of possible causes for mold growth is long, and many do not have anything to do with leaks. However, one common cause is moisture problems related to plumbing leaks or poor ventilation in attics or crawl spaces.

Rainy days

You first need to consider how much rain you get in an average year. If it’s above normal, you can install an irrigation system or change how you use your roof.


Another way to protect your roof against rainy days in San Jose, California, is to maintain it regularly. It will keep any damage from worsening and prevent you from having to replace it prematurely.


You should also ensure that any gutters or downspouts are in good shape and properly working so that water can drain off your roof as intended.


The weather can be unpredictable, but when it comes to your roof, you must ensure you’re prepared for whatever comes your way. With these tips, you’ll know what materials are best for your home’s needs.


Take advantage of our FREE roof inspection and quote today! Call us at (800) 794-7444 or fill out our form here!