Recently we were called out to a client who’d just installed new windows in their home because some of the new windows, nine in fact, had cracked. The cracking was a bit of a mystery, as there had been no impact to the window itself prior to the crack appearing.
So, what happened? In this case, thermal stress cracking is the likely culprit.
Thermal stress can happen when one part of a window’s temperature differs from another part. This can happen as the sun moves through the sky and heats different portions of the glass, especially if the glass is partially covered by eaves or awnings. Continue reading
As a property owner, an issue with your foundation stabilization can be an expensive process, and the process of correcting the issues can often be frustrating and disruptive.
When one door closes, another one opens – unless of course your property is suffering foundation issues, in which case getting those doors to behave might be harder than it should be.
As a property owner, an issue with your foundation can be an expensive process, and the process of correcting the issues can often be frustrating and disruptive. You’re going to need professional help to make sure it’s done right the first time.
Evaluating a property and getting a business or residence repaired, safe and usable is our specialty. Our team has successfully completed over 200 foundation repair projects – giving us the experience and the know-how for getting property owners back into their buildings with fewer headaches.
The team at Helfrich-Associates, a one-stop shop that handles all aspects of soils engineering, geology, and structural engineering services, can help. We’re a premier engineering and construction consulting firm in Southern California and throughout the Southwest United States.
First, let’s talk about what causes foundation problems. Continue reading
Hurricane image courtesy pixabay.com
As we get closer to California’s rainy season, which is usually between November and March, meteorologists are warning of a record-breaking El Niño. El Niño is a warm weather pattern that can cause heavy rain in the Pacific Ocean and surrounding land masses, such as the Pacific Rim countries, including portions of the Western United States.
Over the last six months, California has experienced several major rainstorms. While this has been great for our rain-deprived residents, it’s wreaked havoc on the parched landscape created by the state’s record drought. In fact, the drought has caused the soils to dry out, leading to surface cracks that will fill with rainwater. Continue reading
HOA Maintenance Image Courtesy Pixabay.com
When you live in a Homeowner’s Association (HOA), you get some great perks, such as an HOA maintenance team. Some associations also boast parks and pools, full-service yard care. The maintenance teams usually keep those facilities in great condition. If you’re not familiar with how these associations can afford offer these benefits, they typically collect a monthly fee from all residents within the association. Usually agreement to pay these fees is a prerequisite to purchasing a home within the association’s communities.
HOA’s often include homes or condominiums in their communities. We’ve recently been working with condo-based associations that are having difficulties with keeping up their HOA maintenance programs. Continue reading
Damage due to wind can be extensive. Image courtesy pixabay.com
If you’ve ever been in a windstorm, you know that wind is a powerful force of nature and damage due to wind can be extensive. There are several types of wind events. One type of event, called a Microburst, is a downward burst of air from the base of a thunderstorm. Traveling toward the ground at nearly 60 miles per hour, they can increase speed to nearly 100 miles per hour when they hit the ground – causing extensive damage to buildings and trees.
Microbursts are usually formed when dry air combines with rain within a cloud formation. When the dry air causes the rain to evaporate, the temperature of the air lowers. The cooler air will drop down through the cloud formation, gaining speed as it moves toward the ground. If it falls through an area with a large and steady change in temperature, the cooler air will fall faster as the air around it becomes warmer and less dense near the ground. When the air mass reaches the surface, it travels in all directions at high speeds. Continue reading
Aftermath of a roof collapse – image courtesy of pixabay.com
A roof collapse can be sudden, dangerous, and devastating. Often, excessive loads can be the cause of a collapse. These loads can be weather related, involving things such as heavy snow or pooling rainwater. Another cause may be improper roof repair, such as failure to remove shingles or tiles when re-roofing or repairing leaks.
Roofs are typically designed to support their own weight (consisting of framing members, sheathing, and roofing materials), plus the weight of expected live loads. Live loads consist of people who might need to walk on the roof to service equipment or to perform roof repairs, and the estimated weight of ponded rain (if the roofs are flat), and accumulated snow (if the building is in a snow area). Each of these conditions must be considered in the design of the supporting members. One problem that is particular to flat roofs is the deformation of roofing support members that can cause water to pond on the roof. Once the water begins to pond, the framing members deflect more, which leads to more ponding, which leads to more deformation. An unstable condition is created in these roofs that can eventually lead to collapse of the roof. Continue reading
What happens when a car hits your property? Image courtesy pixabay.com
A few days ago, I was driving through a neighborhood and I saw a car that had jumped a curb and careened in to a home, knocking out a front window and wall. It’s the kind of vehicle accident that could happen to anyone; cars are big, heavy and easy to lose control of. It reminded me of one of Helfrich-Associates’ current projects. So, what happens when a car hits your property?
Our team was recently called by an insurance company and asked to determine how to temporarily support a building after a vehicle had crashed in to it. Continue reading
The DoubleTree by Hilton Hotel at Berkeley.
This week we’ll be covering our latest case study. In early 2011 Helfrich-Associates was asked to examine a hotel in the city of Berkeley and evaluate the structural integrity of a portion of the hotel.
The DoubleTree by Hilton Hotel at Berkeley Marina is located less than 5 miles from Emeryville and only 20 minutes from Oakland International Airport. The hotel is situated on Berkeley Marina.
The hotel, built in the 1970s, had a building that was suffering from titling due to uneven soil conditions. The building in question, number three (3), was built on a 12-inch thick, reinforced mat foundation that was not sufficient to deal with the settling of soft soils. As a result the building had tilted more than 20 inches. Continue reading