Surface Air Film Coefficient (F)

The amount of heat flow in BTU's per square foot per hour between an exposed surface of a material and the adjacent air. It is the measure of the conductance of heat through the air film that clings to all surfaces.

Wall Installation

Labels on wall insulation rolls indicate the length as well as the number of pieces that need to be cut from each roll. We recommend that all rolls be cut from a clean location to avoid staining the insulation facing.

1) Cut the dimensions of the insulation from the base angle to eave strut or rake plus 6"-12" extra.

2) Attach one end of the insulation to the base angle using double-faced tape.

3) Pull from the other end to stretch the insulation tightly outside the girts to the eave or rake, and attach with double-faced tape.

4) Make sure the facing is toward the interior of the building and attach the panel to the structure.

5) Install the next roll in the same manner, with edges butted snugly. Then fasten the tabs using one of the methods described.

Pre Engineered Steel Buildings

Growth is good for every business. It can also be overwhelming when facilities, staff and production seem to be bursting at capacity. By adding needed space, it is possible to alleviate pressure by providing the appropriate workspace to achieve the greatest efficiency. Something that makes pre engineered steel buildings and steel storage buildings attractive to buyers is the flexibility of the external and internal floor plan. Every site has constraints that a conventional builder may be reluctant to work around, but metal buildings can be built to suit any site requirements.

There should be no reason not to consider a pre-engineered steel building for your construction solution. Steel buildings provide comfort and amenities equal or greater than conventional construction methods. If you are renting office space, and considering building your own complex, you can instantly realize the benefits of owning a steel building.

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.

Erectors

Do I need a professional erector to put up my metal building? - A majority of our clients choose to erect the metal buildings themselves. Your package includes detailed erection drawings and an erection manual with every metal building shipped. We design every metal building to be erected easily. If you do not feel comfortable erecting your own metal building, a local contractor can do the job for you at a relatively low cost.

What if I have questions during the erection of my metal building? - We're here to help. We have professional metal building erectors on-staff and they will always be available for your questions.

Do you recommend erectors? - No. Recommending metal building erectors is difficult because we cannot guarantee the quality of their work as we do our own. Check around and you should be able to find a qualified metal building erector in your local area.

How long does it take to erect a metal building? - The time it takes to erect your metal building will depend on the size of the metal building, the size of your crew, and the skill of the workers in your crew. It can take as little as a few days.