Constructing a Large Steel Building

Have you considered all of your steel building options? There are many types of standard buildings to choose from, but they are not the only option. Buildings can be finished with a multitude of options and accessories. Your land and location will control some of the parameters of the kind of structure you need. Aside from these factors you can make the choices based on your preferences. Windows, skylights and panel styles can be individually selected to comprise a personal metal building kit.

Pre-engineered metal building plans are just the starting point from which you can select options and accessories. Configuring your building may sound like a small deal, but it determines the type building you will purchase. Not every large steel building is intended to be a large shop. When you work with the manufacturer you can customize a structure with a polished look and feel. Regard your steel metal building as a low cost alternative to traditional construction.

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.

Walk Doors

Walk doors can be provided as pre-assembled or knock down (field assembled). Metal Building Depot provides solid doors for both options in the following sizes: 3070, 4070, and 6070. The walk doors are typically keyed alike per project. Because of unknown variables, Metal Building Depot does not offer fire rated doors or doors to fit in masonry.

Features of the pre-assembled doors are as follows:

Foam insulated specifically designed for metal building use. Pre-assembled and self-framing for ease of installation. No framed opening required if Metal Building Depot standard girt spacing is utilized. Doors are finished in a two-coat primer; color selection is white or bronze. Doors are shipped in wood crates for protection. All doors have Grade 2 lever locks as standard. Hinges are ball bearing and powder coated. Insulated jambs. 3070 and 6070 doors are made of 20-gage material, 18 gage is available.

Features of the knock down doors are as follows:

Foam insulated specifically designed for metal building use. The walk door is shipped knocked down for field assembly. Doors are textured 20 gage galvanized prime painted and pre-finished in either white or bronze. Weather stripping and standard entrance lock is included. The walk door package is shipped with polybag and full cardboard carton. All doors have Grade 2 lever locks as standard. Hinges are ball bearing and powder coated.

Perm Rating

The perm rating, or permeance, is a measure of the amount of water that passes through one square foot of material per hour. The lower the perm rating, the more effective the barrier. A facing material with a perm rating of 0.1 or less is considered excellent. Anything with a rating above 1.0 is not considered a vapor barrier.

Other Metal Building Details

Fasteners: Self-drilling fasteners are designed for rapid drilling without slipping of the drill point, thus reducing walking and surface marring. The neoprene washer keeps your building watertight as well as providing vibration dampening.

Structural Bolts: We provide all the nuts and bolts to assemble your building through pre-punched holes.

Closure Strips: Our Steel Buildings come with closure strips which when installed provide weather tightness. The closure strips are pre-formed to match the profile of the panels.

Ridge Cap: The ridge cap is designed to match the slope and contour of the roof providing a tight seal along the ridge of the building.

Trim, Flashing, Gutters & Downspouts: All our buildings come with standard trim to give the building a finished clean look. Optional Gutters and Downspouts provide additional protection from the elements.

Plans and Drawings: We provide a full set of anchor bolt plans for the placement of anchor bolts in the foundation. We also provide engineered stamped and certified construction prints. In addition we provide an in depth erection manual to walk you through the erection of your building.