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STEEL BUILDING INSULATION

The popularity of pre-engineered steel buildings is becoming widespread for a lot of reasons. Firstly, they can be built very quickly and costs comparatively lower when using other traditional construction materials. They are durable, sturdy, fire resistant and adaptable to various external architectural treatments without restricting their interior floor planning. The development of new technologies for insulation specifically designed for steel buildings is the primary reason for this flexibility. The insulation systems of today are so advanced that it has contributed to the evolution of metal buildings into homes, offices, schools, churches, and shopping centers all around us.

The increasing costs of energy have made insulation an indispensable part of any construction planning, especially in the construction of steel building systems. It is very crucial for a prospective owner of a steel building to carefully select the insulation system and have it professionally installed. This will ensure a return on its investment than any other building component.

A well-installed insulation system provides the following benefits:
 •  Improved appearance of the steel building
 •  Greater comfort inside the metal structure
 •  Substantial savings in fuel and electricity costs
 •  Reduction in condensation and noise
 •  Reduction in the amount of investment dollars and space needed for heating as well as cooling equipments

Faced Blankets

Faced fiberglass blankets are particular types of insulation materials for metal buildings. Insulation suppliers offer custom lamination to a variety of facing materials. For proper installation, each roll is individually tagged to identify its intended location in the building’s roof or walls.

Specifications:

Product Designation Approximate Thickness Blanket Installation
R1O 3.0" Custom Laminated to length
R11 3.5" Custom Laminated to length
R13 4.0" Custom Laminated to length
R16 5.0" Custom Laminated to length
R19 6.0" Custom Laminated to length


For additional insulation of faced blankets, fiberglass or foam boards, or retrofit applications, un-faced fiberglass blankets are used.

Determining The Thickness

The thickness of the insulation material is the key to effective insulation. Thickness of the insulation is based on the U-Value measure. The U-Value measures how well a building component, such as a wall, roof or window, keeps the heat inside the steel building. For those living in warm climates, the U-Value is still a relevant indicator of how long the inside of a building can be kept cold. It is an important measure for understanding the amount of energy needed to sustain the building’s comfortable indoor temperature for both cold and warm climates.

Since the U-Value measures the heat flow through a building component, a high U-value is ideal for warm climates since more heat flows through the steel building. A low U-Value is good for cold climates because this means that more heat is kept inside the building.

Technically speaking, the U-Value physically describes how much thermal energy in Watts (W) is transported through a building component with the size of 1 square meter (m2) at a temperature difference of 1 Kelvin (=1°C). Thus, a U-Value’s unit of measure is W/m2K.

For example, a U-Value of 0.2 W/m2K is good for external walls, roofs, etc. This value can be reached by using thermal insulation with a thickness of about 20 cm. or more. For windows, the ideal U-Value should be less than 1.0 W/m2K.

Insulation Accessories

These are the accessories needed for proper installation of the insulation system of your steel building:
Facing Tapes: These are three-inch-wide pressure-sensitive tapes used to match insulation facings and patch tears which may occur during installation.

Double-Faced Tapes: These tapes are used to attach insulation materials to framing members during installation or for fastening tabs.

Trim Strips: These 3.5 inches wide aluminum strips have a white finished on one side. They are used to create an attractive grid effect. In addition, trim strips help keep insulation joints vapor-tight and neat.

Staple Pliers and Staples

Thermal Blocks: These are designed to greatly reduce heat loss at all blanket insulation compression points over secondary framing members.

Wire Mesh: The 6’ x 300’ roll or 6’ x 150’ roll wire mesh is used to support insulation roofs and walls.