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.

Ridge Vent

Ridge vents come completely assembled for ease of installation. Ridge vents supplied by Metal Building Depot are of a low profile design to provide gravity type ventilation. Because gravity ridge vents are designed to allow free airflow, some penetration of water during blowing rains is to be expected. Standard available finishes for the ridge vents are polar white and galvalume. Other colors may be available at an additional cost. Nominal ridge vent length is 10'-0". Ridge vents are available with 9" and 12" throats. Bird screens are provided as a standard. The ridge vents can be ordered as continuous or single units. Exterior parts are 26 gage painted or galvalume. Interior parts are all made of G90 galvanized steel. The substructure consists of 10 gage saddle straps with interior baffles of 24 gage steel. Lifter arms and damper slides are made of 18 gage steel. Manual operation is through activation of a pull bar which is attached internally to bell cranked type lifter arms connected to the damper with Teflon coated pins through the damper slides. Dampers are spring loaded to remain in the open position until the pull bar is operated and locked in the closed position. Dampers operate in a vertical manner. Each vent is opened by a pull chain that extends approximately 12" below the roof unless noted otherwise on the order documents. Other opening mechanisms are available at an additional cost upon special request. Ridge vents should not be placed closer than 5’-0" to the endwall steel line to allow room to properly flash the building. For example, a 90’-0" long building with ridge vents required the entire length should have no more than (8) units. The ridge vents are available with the following accessories:

Metal Building Kit

Purchasing your new metal building kit. You should be cautious when buying a metal building kit. Not every manufacturer uses high quality materials or fabricates to the latest industry standards. You don't want to purchase a building from a manufacturer (or broker) whose building parts were produced in a factory without the benefit of a skilled eye to oversee the process.

A pre-engineered metal building should come with a complete and comprehensive set of blueprints. When a qualified steel building manufacturer puts its seal of approval on your building design you can rest assured of its structural integrity. You can expect detailed documentation about the building's fabrication and its specific code requirements as well.

Before you purchase a metal building kit you should attempt to create a basic plan for its end use and design. Working with a professional steel building company should ensure that all facets of your building are taken into consideration. They can explain the building options and codes in detail so you have the accurate building specifications.

Proper Ventilation of a Building

Proper ventilation in a building can be an effective measure for condensation control. The end use of the building must be the controlling ventilation design parameter, especially above drop ceiling areas. Ventilation system design should be done at the initial building design stage. Use of a design professional is strongly recommended to assure the best possible system.

CONDENSATION CAN BE MINIMIZED THROUGH CONSIDERATION OF CLIMATE, RELATIVE HUMIDITY AND THICKNESS OF INSULATION.

RESIDENTIAL

Your decision to build is an important one. You have pictured yourself owning your own building, built just the way you want. You have imagined every detail, inside and out. It is a treasured vision, a promise you have made to yourself. And because your business operation is different from any other, your ideas about what you and your company want in a facility are unique. Your dealer, who is backed by a team of professional engineers, can help you turn your dream into a reality. Dealers have worked with a multitude of owners and developers to design efficient, economical structures that reflect the appropriate image for their operations. Architects and engineers will work with your dealer to design a building to meet your individual requirements. We can also work personally with you, your architect's plans, through your dealer to engineer a building system which uses practical, sensible, quality materials to achieve and complete your objective.

Using only the highest quality materials available, factory trained craftsmen use sophisticated Computer Aided Manufacturing (CAM) equipment to fabricate your building materials. Our commitment to excellence, attention to detail, and high quality workmanship assures you ease of construction, saving you money in time and labor. You have worked and planned to build a building that you can be proud of, and will serve your needs through the years to come; a place which is uniquely yours, a facility that is just as you imagined it. An establishment that brings your special ideas to life. It is an approach that lets you save money, yet build exactly the type of establishment you have always dreamed would be yours someday. This type of approach has pleased thousands of owners just like you. It is a concept that lets you use the pioneer spirit of people working together - you, your dealer, and Metal Building Depot, Inc. - to fulfill your own special vision of the American Dream . . . to build the building of your dreams today. Our steel frame load bearing wall systems with steel partitions provide attractive secure units. The use of fluted block, brick, wood, stucco, or steel can enhance the overall appearance to help attract even more customers.