My Home is Only 25 Years Old - Do I Need Insulation?

My Home is Only 25 Years Old - Do I Need Insulation?

Different insulation materials have different lifespans. It is only natural to think about expiration time and re-insulation. This article will explain why you need to replace 25 years old and older insulation. You might face several problems like a drafty house or high energy bills as your home insulation begins to wear out. Shabby and worn-out insulation poses financial, environmental and health issues. Health problems like allergens, mould and rodents might enter your house. Look for clear signs of poor or damaged insulation; it will help you decide what you need to do next.  

Your 25-Year-Old Insulation Does Not Meet Current Double R-Requirement 

The minimum R-Value required to meet the insulation building code of 2021 varies greatly depending on which portion of the house you're insulating and where you live. In the past 25 years, the code for insulation has gone doubled from R-32 to R-60 attic insulation. R-value is the resistance to air leakage your current insulation layer possesses. Low R-value will indicate your house no longer can block heat flow efficiently. To achieve a higher R-value, you need to install new insulation properly. While deciding to replace shabby insulation, keep in mind that proper layer thickness is also required to improve the efficiency of your home's insulation. Seek help from professional insulation contractors like Reitzel Insulation; they can help you choose the proper material and required thickness to improve the insulation R-value of your house.  

Insulation Needs Depend on Material of Previously Installed Insulation 

In the past 25 years, blown fibreglass insulation has been the most common type of insulation used; since then, we have gradually switched to blown cellulose insulation, which has a higher R-value than fibreglass. It is worth noticing that lifespan varies for different types of insulation. Fibreglass has remained the favoured choice due to its efficiency and cost-effectiveness. However, it can begin to fall from fibreglass batts and is prone to damage. If you have a home insulated with fibreglass, get an inspection for insulation or an energy audit to find the condition of energy losses. Cellulose insulation is environmentally friendly and more effective than other types of insulation at blocking air. According to some research, cellulose insulation can even assist in safeguarding your home in the event of a fire. The average lifespan is 20 to 30 years; however, wear and tear can start as early as 15 years after installation. No insulation is invincible to harm; no matter what type of insulation you have in your home, it is good to consider re-insulation after 20 years. 

New Insulation Will Increase Energy Efficiency

Poor insulation allows air leakage and moisture trap problems in the house. Leaks indicate that you should replace your insulation as soon as possible! Water damage can lead to several other costly difficulties down the line, including mould issues, so address leaks as soon as possible. To increase the energy efficiency of your house and make it a comfortable living space, install new insulation. To improve your home's insulation, make sure to seal your attic's ventilation and exhaust points properly. Approximately 25% of a home's heat escapes through the attic and roof. To raise the attic's R-Value, put a new insulation layer over the existing insulation. Depending on the R-Value required, insulation materials such as batts, cellulose, spray foam, or a combination are good for use.  


Energy efficiency rules have evolved significantly since 1975 when the Ontario building code was released to the public. We hope this guide helps you in getting adequate insulation for your house. Contact a professional insulation contractor to seek further information. 

Contact Reitzel Insulation

If you have any questions about insulation, contact our office at 1-800-265-8869. We can advise you on the best course of action.


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