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.

Components/Accessories

Which base trim option should I choose? - The base trim that you choose for your steel building will depend on your building's needs and the type of foundation you use. Although we strongly recommend a notched base, we do offer several additional base trim options to suit your specific needs. Please see base conditions for more helpful information and illustrations.

What type of windows do you offer? - We offer a selection of windows for your building. To learn more about what's available please visit the accessories section of our website.

What comes with the doors and windows? - All of our doors and windows come with the required hardware to install them into your steel building. We provide the framing, trim, and flashing for a proper installation.

How do I know where to place my windows and doors? - Windows and walk doors are generally "field located." You, as the customer, will pick the location, cut the corresponding panel to size and proceed to mount the doors and windows. If you choose to include a large number of windows or doors we may ask you to give us your proposed location to ensure proper building bracing.

How do I attach my doors and windows? - All of our walk doors are self-framing, so they include the necessary items to mount them on your building. Our windows are secured by screwing the window trim directly into the building. This is also known as self-flashing. If you live in a high wind area, please talk to one of our design consultants about additional door and window mounting options.

What is the R-Value of your insulation? - The r-value of our insulation depends on the thickness you choose. It will vary between R-10 and R-19. Please see the r-value section of our website for more helpful information.

Sheeting

All sheeting is 26-gauge "R" panel. Color sheeting has a galvanized substrate to prevent rust and corrosion. All our Galvalume roof sheeting is hot dipped with a zinc and Aluminum compound to give it the strength to stand up to the worst weather, and the durability to last for generations.

Building Permits/Codes

Do I need a building permit to build my metal building? - You will almost always need a building permit. On occasion you will not need a permit to build but you should ALWAYS check with your local building inspector before purchasing a metal building.

When I call my building inspector what should I tell them? - When you get in touch with your building inspector let him know what you're planning and you should be able to receive the information you'll need to get a building permit for your new metal building.

What do I do if I need permit drawings? - We supply the permit drawings to you after you have committed to buy a metal building from us. We will not begin fabrication or shipment until you have completed the approval process. See the Approval Process section of our website.

What about building codes and loads? - Every metal building that we ship is engineered to comply with regional building codes, wind load and snow load requirements (as stated on your plans). When you start designing your metal building, make sure to review your building code specifications very closely. Since there can be varying requirements within regions - you will need to confirm the codes by contacting your local building official. MetalBuildingDepot.Com is not responsible for confirming codes.

Trim and Gutter

The trim on a steel building serves two essential functions, to close transitions and protect the building from the weather. Trim also adds to the appearance of a building. Our sculptured trim gives the building a refined, quality appearance. Trim covers corner and edge areas of a building. For instance, eave trim creates a transition from the roof to the sidewalls and roof to endwalls.

Most metal building companies often supply "box" or generic trim pieces. This trim routinely has to be modified to fit, as it is created as multi-purpose - and does not fit well on standard panels. We fabricate each profile to match the design of your steel building. We do a lot of work in the shop that will save you headaches in the field. We hem all exposed edges of our trim so it installs easily, fits neatly, and looks great for the life of your building. Our trim is easy to install and adds to the look and the integrity of the building.