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.

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.

Thermal Conductivity (K-Value)

A unit used to express the amount of heat, in BTU's per hour, that passes through one square foot of homogeneous material that is exactly one inch thick and has a temperature difference of one degree Fahrenheit between its surfaces. As the K-Value decreases, so does the amount of heat permitted to pass through the material.

Panel Profiles

Roof Panel Profiles - Our standard roof sheeting is the "PBR" panel, which is available in bare Galvalume Plus® as well as a variety of colors. Wall sheeting is available in "R" and "PBR" panel. Depending on the color and your geographic location - PBR panels may not be available for certain colors.

Liner Panels - For liner panels we offer a low-rib 29-gauge panel. Liner panels are an interior covering for the walls of a steel building. Like exterior walls, liner panel consists of 3-foot wide panels that are attached to the framing in the same manner as exterior sheeting. Full-height liners run from floor to roof. Partial-height liners typically attach to the girt at 7'4" and extend a few inches above it. Buildings with liner panels must have a base connection for the bottom of the panel (see base conditions).

Advantages - Liner Panels enhance appearance, providing a finished look for the interior. The biggest advantage is that liners protect the insulation and the outside walls. Because un-reinforced insulation facings tear easily, and even the best-reinforced materials can be damaged, liner panels are the intelligent solution to protect your investment. Although 26-gauge exterior walls can withstand a lot of punishment, a steel liner will protect your building's interior and performs at a lower cost than other wall coverings, which will require their own framing.

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.