Frequently Asked Questions
Pipe noise?
Is the piping isolated from the wall system? If not, it can turn the entire wall into a speaker that transmits all the pipe noise. Gypsum panels are the least conductors of noise.
Fill the wall cavities with a fibrous insulation product. An empty wall cavity can transmit and amplify noise.
What is Mechanical Insulation?
The simplest explanation is that it is used to prevent temperature loss/gain, protect against impacts, and reduce noise transmission.
Mechanical Systems Insulation – Function
- Thermal
- Sound
- Freeze protection
- Fire resistance
- Condensation control
- Safety
- Compliance
Types
- Preformed – usually made from fiberglass or foam. Since it is ordered by type of piping system, it fits tightly around the pipe and elbows.
- Blanket – usually made from fiberglass, mineral wool, or foam. It is produced to be flexible, and easy to wrap.
- Rigid Board – usually made from polystyrene, polyurethane, or phenolic foam. Typically used in very high temperature situations.
Materials
- Fiberglass – glass fibers are woven together to form the insulation. It is used for both hot and cold applications. Because of its non-combustible nature, it is a good selection for fire resistance.
- Foam – polystyrene or polyurethane. Typically used on cold applications.
- Elastomeric – usually made of rubber or similar material. Usually used on cold systems as it resists moisture and can prevent freezing.
- Calcium Silicate – made from a combination of calcium oxide and silica. Typically used in both extreme hot and cold conditions.
- Ceramic Fiber – made from ceramic fiber. It is used in particularly high temperature applications such as furnace and industrial piping.
- Refractory – made from ceramics, like alumina, silica or zirconia. Specifically for extreme high temperature applications.
- Mineral wool – made from rock or slag and is similar to fiberglass in its properties and use.
- Phenolic foam – made from phenol and formaldehyde. Used for both hot and cold applications and is also fire resistant.
Mechanical Insulation Calculator
Insulation is used for a variety of reasons, ranging from energy savings to condensation control. The Whole Building Design Group has collected a variety of calculators that system designers can use to determine the appropriate insulation thickness for the unique needs of their application. Each calculator has a detailed description of what it is and how to use it. Included are calculators for condensation control, energy loss, financial return, freeze time and personnel protection (burn prevention).
