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Adding New Insulation Over Old or Damaged Insulation

When it comes to insulating your home, you might be wondering if it’s okay to just put new insulation on top of what’s already there. But if your home needs new insulation, there are a few important things to consider before taking on a re-insulation project.

In this blog post, the experts at Mooney & Moses explore the ins and outs of adding new insulation over old or damaged insulation, so you can make an informed decision about your next home improvement project.

Can You Install New Insulation Over Existing Insulation?

The short answer is yes; in many cases, you can. This can be a cost-effective way to improve your home’s energy efficiency and comfort. But whether you should will depend on several factors.

According to ENERGY STAR®, you can put new insulation over old insulation unless it’s wet. If it’s wet or showing signs of water damage or mildew, you should look for the cause and repair the problem. The insulation will likely need to be removed.

Wet insulation is problematic, as it can lead to mold, mildew, and sometimes the rotting of ceilings or roof rafters. So, before adding new insulation, ensure the existing insulation is dry and in good condition.

To cover all your bases and ensure no part of the insulation goes unchecked, it’s recommended to consult with an insulation contractor for that extra layer of expertise and peace of mind.

When Should Old Insulation Be Removed?

Often in the case of damage, it’s better to remove the old insulation instead of just stacking on new layers. Reasons to remove your old insulation include:

  • Wet or damaged insulation: Wet or damaged insulation should be removed promptly to prevent further issues like mold growth or structural damage.
  • Pest infestations: If your insulation has become a home for pests like rodents or insects, it’s best to remove and replace it to fully eliminate the infestation.
  • Fire or smoke damage: Insulation that has been exposed to fire or smoke may have lost its effectiveness and should be removed and replaced for optimal energy efficiency.

If you’re unsure whether it’s time to say goodbye to your old insulation, speak with an insulation expert. They can look at what’s going on and recommend what to do next.

Contact Mooney & Moses for Insulation Removal, Installation & More in Cincinnati

If you’re in the market for insulation help, look no further than Mooney & Moses in Cincinnati. Our experts are highly trained and knowledgeable when it comes to all things insulation and can provide the right solution.

If adding new insulation over existing insulation is a viable option, we’ll handle the installation and ensure your home is properly insulated for maximum energy efficiency and comfort.

Frequently Asked Questions

How do I know when I need more insulation in my attic?

If you feel drafts in your attic or basement or your HVAC bills are skyrocketing, it may be time to consider adding more insulation.

What is the best material to use when adding more insulation to an attic?

The best material depends on factors like your location and your existing insulation levels. Fiberglass is a popular choice for attics, but it’s best to consult with a contractor for personalized recommendations.

Can you put faced insulation over existing insulation?

According to ENERGY STAR®, “faced” insulation should not be placed over existing insulation in the attic. Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder (aka a face).

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