Visible Condensation

To effectively control visible condensation, it is necessary to reduce the cold surface areas where condensation may occur. It is also important to minimize the air moisture content within a building through the use of properly designed ventilating systems.

Heat Transfer

Effectively controlling temperature in a steel building requires insulation to be present along exterior walls and roof. When a temperature differential is present in an enclosed steel building, heat will work from warmer areas to colder areas until the temperature in the building has stabilized. At the point of thermal stabilization, the cooler (and heavier) air will be present at lower elevations and warmer air will be present at the roofline. The function of insulation is to help stabilize air temperature at more desirable levels. When it is hot outside, preventing heat from transferring into the building is the goal, and of course in the winter we want heat to remain inside.

Heat transfer occurs in three ways:

Conduction : Occurs in a solid or liquid when heat from one object is transferred by touch to another object. An example of this occurs when a pot on a stove will heat up by conductive heat transfer from an electric coil.

Convection : Occurs with the physical movement of air. There are two types of convectional heat movement. The first is natural, where hot air rises displacing the cold air and moving it down. The second type is forced or mechanical convection. This occurs when an object, like a fan, physically moves or "forces" the air to move.

Radiation : Occurs when an object is warmer or hotter than the air around it. For example, the sun, which is hotter than everything around it, radiates heat waves that travel through the air and is either absorbed by or reflected by the surface it comes in contact with.

ABOUT US

COMMITMENT - Our Company's vision is "to maintain a leading-edge in the design, engineering, fabrication and delivery of the highest quality steel buildings in the industry." We are deeply committed to providing you with this service as a means of achieving our vision.

VALUE - Low initial cost does not always provide the best value. It is just a small part of the picture. The values inherent in our designs assist in the ease of construction of the project but more importantly we provide a well-documented system that is easy to maintain. Much of the value we bring lies in the details. There is a true ART to engineering and design that provides added value to the Owner.

EXPERIENCE - With over 8 years in the manufacturing business and key staff members with many more years in engineering, we have the requisite experience. Major hardware and accessory suppliers have reviewed our capabilities and recognize us as leaders in our field. Many of our projects involve very difficult project constraints. Dealing with these issues and tight project schedules is the trademark of our success.

PROJECT METHODOLOGY - The success of a project lies in the talent of the design team and in the execution of the project. We first provide a strong project team, backed up with a well-defined and proven project execution methodology. Our project methodology has evolved over the years as we have executed numerous projects. It begins with our proposal document and extends through project documents, design sequence, system testing, acceptance documents and to the final delivery of our building system. The key to our methodology is communication. We strongly believe in defining what we are providing and expanding this initial definition as the project continues.

QUALITY - In engineering, quality relates to the designs we produce and the timing in project execution. Our goal for design is to provide a superior level of detail in documentation. We strive for uniformity of design, providing details often left out by others and keeping systems simple. The key to being on time is project execution. First, a well-defined project methodology is needed to set the planning framework. Second, understanding of the Owner's needs is paramount. Finally, our years of experience in the execution of critical projects have given us an essential edge over our competitors. Key members of our staff have up to thirty-five years of experience in project engineering and execution.

Facings

In addition to acting as a decorative protection barrier, facings serve an integral part of the overall insulation system. Facings provide vapor barriers, light reflectivity and structural strength. In some cases, a reinforcement of fiberglass scrim is used for extra rigidity and greater impact resistance.

The effectiveness of a vapor barrier depends on three primary factors:

1) Location within the insulated section

2) Permeance

3) Proper installation

Condensation Control

The condensation process occurs when warmer moist air comes in contact with cold surfaces such as framing members, windows and other thermally conductive accessories, or the colder region within the insulation itself (if moisture has penetrated the vapor retarder). Warm air, having the ability to contain more moisture than cold air, loses that ability when it comes in contact with cooler surfaces or regions. When this happens, excessive moisture in the air is released in the form of condensation. If this moisture collects in the insulation, the insulating value is decreased.

In dealing with condensation, air may be considered to be a mixture of two gases-dry air and water vapor. One thousand cubic feet of air at 75°F can hold up to 1.4 pints of water. At 45°F, it can hold only 0.5 pints.

Relative Humidity is a percentage measurement of the amount of water vapor present in the air in relation to the amount it is capable of holding at that temperature. Therefore, 50% Relative Humidity would mean that the air is carrying only one-half of the total amount of moisture that it could be holding at that particular temperature. Cold outside air is usually much drier than warm inside air. Therefore, you can lower the Relative Humidity by bringing in outside air to mix with and dilute the moist inside air. At 100% Relative Humidity, the air is "saturated."

The temperature at which the air is saturated and can no longer hold additional moisture is called the dew point temperature. Whenever air temperature drops below its dew point, excess moisture will be released in the form of condensation. Condensation problems are most likely to occur in climates where temperatures frequently dip to 35°F or colder over an extended period of time.