Frequently Asked Questions About Blowing Insulation
The blowing insulation method is relatively new in the field of modern construction method so we've put together a list of important questions and frequently raised points surrounding this technology with helpful answers and suggestions as to how we recommend you tackle these issues.
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An insulation blowing machine is able to break up a compressed loose insulation material and loosen it up. After that, the air flow transports it via a hose into the building structure.
The insulation material consists of very small particles. Usually, the insulation materials are offered as mats or boards.
Blowing insulation materials are generally sold as high compressed bale in a film packaging for selling. There are also loose bulk materials which are packed in pouches.
The advantage of using the small form of blowing insulation materials is that it can insert itself in the building structure without any alterations.
They offer very good thermal conductivity and sound insulation properties. Some blowing insulation materials have a very high moisture absorption rate, thus creating a pleasant indoor climate.
Typical blowing insulation materials include:
- Wood fibre
- Glass wool
- Rock wool
- EPS granules
- Mineral granules
- Many more products such as grass, seaweed, hemp and mixtures of materials
In recent years, it was common to install thermal insulation with stable elements on building sites. Examples include mats or boards made of glass, wool, rock wool and other compound materials. Another common way is filling timbre frame constructions with sprayed foams which harden.
Blowing insulation consists of loose thermal insulation materials which are then transported using air through a hose or another injection tool in the building element. The more insulation material reaches the building element, the more air escapes. The existing air pressure and the weight of the insulation material become more and more densified. It fills the whole element by and by and fits in every corner, angle, slot and shapelessness. This thermal insulation remains gap free and there no scrap pieces regarding to the process. Blowing insulation fits in every cavity.
- Blowing insulation materials fit in every building element geometry without alteration due to the very small particles.
- Gaps, slots, chinks, holes or around service pipes are filled or surrounded completely.
- During processing, there are essentially no interruptions or rests since no alterations are necessary. The transport and the break-up is done by the insulation blowing machine as if it were automatically. It must only be filled with the insulation material.
- High insulation thicknesses (outer wall) can be filled much faster. That's why blowing insulation is much more cost-effective.
- High-quality thermal conductivity properties and sound insulation.
- Many insulation materials with environmental benefits available on the market
- Very good fire protection properties
- Good deconstruction and recycling properties
Insulation blowing tools are used directly at the injection hole or location. They are necessary to reach an ideal insulation density in the building element.
Examples and application fields:
- Injection hose: Open/attic blowing or dense blowing
- Insulating needle: Dense blowing
- Injection nozzle: Dense blowing or cavity wall insulation
- Rotary nozzle: Dense blowing or cavity wall insulation
- Ventilated rotary nozzle: Ventilated dense blowing
- Injection lance: Ventilated dense blowing and element filling
- Insulation blowing plate: Element filling