The Bay Area is famous for its beautiful topography and coastal charm. Yet, when it comes to roof upkeep, homeowners here contend with a diverse set of problems. This is a region of microclimates, where weather can change sharply from one vicinity to another. One part of the Bay might be shrouded in summer fog, while just a few miles away, the sun is baking everything in sight.
Winter storms pack a wallop, too; one roof can be the target of a sustained onslaught of 50-mph winds and driving rain for days on end. Today’s article will cover a few different common roof issues, along with the solutions offered by a group of local roofing Bay Area experts to prolong the life of your roof and your home.
Wind and Storm Damage
Coastal regions in the Bay Area often experience winter storms. And within the local region, there are ten cities that are coastal towns – half of which are at the mouth of the bay and half of which are on the Pacific Ocean. These coastal cities are often hit directly with the high winds and rain that accompany a winter storm. But even cities further inland can get winds channeled to them from the Bay itself and from the top of the storm.
To reduce the likelihood of incurring wind damage, it is wise to use materials that are wind-resistant. Examples are asphalt shingles that are rated for high-wind zones, and either concrete or clay tiles that are fastened to the roof with modern clips. Even wind-resistant materials can fail making regular roof inspections (especially after a big storm), a must. Furthermore, any trees on the property should be kept in such a condition that they are capable of withstanding a hurricane.
Moisture and Mold Problems
Coastal fog, winter rainfall, and morning dew create ideal conditions for the accumulation of moisture on roofs. Persistent moisture can promote the growth of mold, moss, and mildew on shingles and tiles in places where fog is a common occurrence. The damage these organisms can do to a roof’s aesthetics and structure can be considerable.
To stop moisture-related problems, roofing Bay Area professionals suggest ventilating the roof. Doing so allows for the necessary airflow to dry out any moisture that gets into the roofing system. Furthermore, applying algaecides or moss-preventative treatments to the surface of the roof can minimize growth. Gutters prevent roof edge leaks so if you want them to function properly, be sure to keep them clean.
Damage from Sun Exposure Creates
Inland areas of the Bay, such as San Jose and Contra Costa County, experience long, hot summers with lots of sun. Overexposure to UV rays from the sun can weaken roofing materials, especially asphalt shingles. Prolonged exposure can lead to visible signs of degradation like cracking, blistering, and curling. That exposure decreases a roof’s ability to protect against rain and significantly increases energy costs, especially when running an air conditioner in summertime.
Aside from strictly cosmetic changes to shingles, the area covered by those shingles can be made more UV-resistant by (1) installing type-appropriate metal roofs, (2) using roof cooling techniques that greatly reduce heat build-up materials), (3) installing tiles with UV-reflective coatings and (4), performing routine inspections of the roof during the off summer months.
Roof Leaks and Flashing Failures
The Bay Area’s rainy season can expose hidden weaknesses in roofs. Flashing, the material used to waterproof joints and seams, is one of the most commonly seen problems by roofing Bay Area contractors. Flashing material can corrode, crack, or become dislodged over time. Identifying and repairing flashing issues can save a roof. When you are inspecting potential problem areas, look for signs of wear on the flashing material.
It’s better to tackle this issue head-on than to let it worsen. The suggested repair methods include replacing corroded metal with newer metal and then applying silicone as a sealant.
Poor Ventilation and Insulation
Many homes in the Bay Area, particularly older ones, may not have sufficient ventilation or insulation in the attic. Without proper ventilation, it’s impossible to keep the attic cool and dry. The trapped heat and moisture can cause the roof to deteriorate and lead to mold problems. Insufficient insulation allows heat to escape in the winter and enter during the summer, which can drive up energy costs and inhibit air conditioning.
There are two simple solutions: Insulating the attic with high-quality materials and/or ensuring that there are enough airflow-boosting devices, like attic fans or ridge vents. These upgrades also reduce energy costs and make the house more comfortable in any season.
Protecting and Preserving Roofing Bay Area Homes
Because of the Bay Area’s unique climate and environmental conditions, it takes more than just regular maintenance to keep a roof in good condition. Homeowners are up against a convergence of factors that can shorten the lifespan of roofs; increased wind exposure, rising sea levels, and a spectrum of moisture-related problems, just to name a few. Inspections, necessary repairs, and the use of well-suited materials are what allow roofs here to keep going strong.