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.

Installation Overview

The metal building is rapidly becoming more popular for a variety of reasons. They can be built very quickly and are extremely low in cost. They can easily adapt to any number of external architectural treatments without restricting their interior floor planning. A primary reason for this flexibility is the development of insulation specifically designed for metal buildings. The development of advanced insulation systems with more efficient thermal performance is so advanced that it has enabled metal buildings everywhere to evolve into many of the showrooms, retail outlets, schools, offices and shopping centers we see today.

Today's high-energy costs have made insulation a critical consideration during any construction planning. An insulation system that is properly selected and professionally installed will return more on its investment than any other building component.

Insulation provides many benefits:

Improved appearance, Greater comfort, Substantial reductions in fuel and electricity costs, Condensation and noise control, Reduction of the amount of investment dollars and space needed for heating and cooling equipment.

Controlling Condensation

Two things must be present for condensation to occur: warm moist air and cool surface temperatures below the dew point. The proper control of these two factors can minimize condensation.

In metal buildings, we are concerned with two different areas or locations: visible condensation which occurs on exposed surfaces below dew point temperatures, and concealed condensation which occurs when moisture has passed through the vapor retarder and into interior roof and/or wall cavities and then condenses on a surface below dew point temperature.

Insulating Against Radiant Heat

Traditional forms of mass insulation, like fiberglass, are effective in preventing heat transfer by conduction and convection, but they less effect on radiant heat. Between 80 and 90% of the radiant heat striking fiberglass will pass through or be "emitted". Radiant transfer typically has as much impact on the temperature in a building as conduction and convection. For more information on radiant barrier facings click here.

RECREATIONAL

Todays sports, conditioning and recreational centers represent a multi-billion dollar business which continues to grow each year. Attractive, ultra-modern facilities are springing up everywhere, offering a myriad of activities to meet the recreational demands of our society.

Immense clear span, low cost-per-square-foot, and low energy costs are vital to the successful construction and operation of recreational facilities. Whether your need is for a tennis, bowling or health club facility, computerized design and manufacturing help our design engineers create building systems that meet the precise demands of recreational facilities with an eye to architectural designs that fit into any surrounding. Our engineers have designed and manufactured buildings for sports courts, sports fields, game rooms, locker rooms, roller rinks, ice rinks, riding arenas, recreational centers and every other pastime you can imagine. The most important element in the design of all these facilities was combining practicality with efficiency, while providing for the customers' needs. Equestrian buildings provide excellent examples of how the flexibility of these custom designs allow for cost-effective solutions to those specific needs. Your dealer can value-engineer a dollar-saving building system that fits the bill, whether your needs include an arena, a barn or a complete riding facility. Available from one stall to one hundred, with a center row or in a shed-row design, our value-engineered horse barns give you maximum space with a functional layout designed to streamline your horse operations. Riding arenas are available fully-enclosed or as a roof-only structure. Clear span arenas are available up to 240 feet wide and in unlimited lengths. Our engineering department and your dealer can work with you to custom design a structure which maximizes your building site with attached barns, tack rooms, or hay storage areas.