Blown in Attic Insulation – An Overview

July 18th, 2012

The attic in your house can be easily insulated if you go about the process in an informed manner. Being relatively inexpensive and fast, proper attic insulation is helpful in maintaining an optimal temperature inside your house throughout the year which goes a long way in reducing electricity and other utility expenses. Blown in attic insulation is one of the most popular and effective ways of insulating your attic against fluctuating outside temperature.   What is Blown In Attic Insulation? Blown in attic insulation is a state-of-the-art methodology of insulating your attic by blowing recycled substances through a hose to fill up any irregular open space. Material options include cellulose, fiberglass or mineral wool, all recycled from used products. Cellulose is obtained mainly from shredded boxes and newsprint, whereas fiberglass is derived mostly from discarded glass while mineral wool is obtained from recycled industrial waste like slag.   Advantages of the Blown In Method Insulating your attic by the blown in process has many benefits.  
  • The blown in method is best for foolproof insulation of your attic as only this method allows you to fill up even the tiniest cracks or fissures completely thereby eliminating the chances of air blowing in or out.
 
  • It is a quick and non-messy way of insulating your attic with long-lasting materials. You just need to carry up a host pipe to your attic while the bulky equipment and machinery can remain in a lower floor.
 
  • Materials used in this process (especially fiberglass) do not promote the growth of bacteria or mold thereby creating a healthy and comfortable environment in your attic.
 
  • A properly done blown in insulation job muffles external sound thereby protecting your attic from the nuisance of sound pollution.
 
  • As blown in attic insulation uses recycled products, it is an eco-friendly process. This helps reduce carbon emissions while protecting precious fossil fuels for the future generations.
  How to Do It Correctly Blown in attic insulation is a modern, cost effective and environment friendly way of sealing up the gaps and spaces in your attic.  
  • Selecting appropriate R-value: The insulating capacity of a material depends on its R-value (thermal resistance value). Before initiating the insulation process, understand the R-value of the material selected so that you can apply it as thickly as required. Remember that over the years, cellulose loses about twenty percent of its R-value due to settling, whereas fiberglass or mineral wool loses little vis-a-vis the original thermal resistance capacity.
  • Appropriate application: Blown in attic insulation can be effective only when the insulation layers are in place without any fluffing or gaps in between. To achieve this, apply the insulation materials up to the correct layer of thickness and at least three inches away from the ceiling.
  • Appropriate drying: Give enough time to your blown in attic insulation work for the materials to dry completely before installing the drywall.