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6 Things You Don’t Want Your Insulation To Do

Allstate Exteriors • July 20, 2020

Proper attic insulation is the perfect way to retain cool air in summer and prevent heat loss in winter. Always pay close attention to your insulation. Some of these issues could happen if your attic insulation becomes wet:

  • Trapped moisture gradually degrades the entire roofing system.
  • Corrosion of roofing fasteners and rusting of wall ties and steel studs, making your roof vulnerable to wind-uplift.
  • Interior water damage, warping, and other structural damage.
  • A breeding ground for mold and bacteria.

The Solution to Bad Insulation

If you feel your house is leaking due to drafty or unsealed attic, have an insulation expert conduct an energy audit using a thermal camera to identify cool spots up there. If the damage is not massive, it’s possible to seal those leaks depending on the age of your insulation. Here are six things insulation can do when ignored.

1. Insulation Can Burn

You may not think about how insulation will react should your home catch on fire. Can it burn? Yes, it actually can! Although most insulation materials are extremely fireproof, a myriad of issues can cause your insulation to burn. Fiberglass insulation is made of glass combined with plastic polymers and is naturally fire-resistant.


However, you need to be careful with batts that are backed with foil or paper as these materials can burn quickly. Cellulose is not fireproof and will need to be treated by other flame retardants to help minimize combustion. However, insulation materials such as mineral wool can be completely non-combustible.

2. Insulation Can Settle

The next question to consider is if insulation settles. All insulation settles at least some over time. Let’s look at fiberglass insulation as an example. Blown-in fiberglass attic insulation is typically blown into the attic using a high-pressure hose. This is a different approach from blanket or “batts” insulation laid down in large sections of an attic. Since the blown-in insulation is aerated during the installation, some types can settle and lose thickness over time.


This is less likely with batts of insulation. This does not mean blown-in insulation is bad. It’s an ideal option for small, hard to access areas of your attic because it allows for more precise installation.

Your professional installer will account for settling when doing the initial installation by considering the desired R-value and allowing adequate depth. Moreover, you can today find blown-in fiberglass insulation products that don’t settle, such as the Expanding Blown-In PINK Fiberglas™Insulation from Owens Corning.

3. Insulation Can Cause a Rash

If you’re concerned about the health implications of touching insulation materials, you’re probably asking, can insulation cause a rash? Health effects from exposure to fiberglass insulation can be different depending on the size of the fiber and the type of exposure. Older insulation materials with larger fibers could cause eye, skin, and upper respiratory tract irritation.


Working with fiberglass insulation can cause skin irritations ranging from minor itching to serious rashes. It’s often caused by microscopic, needle-like fiberglass spindles which prick your skin. To protect your skin from rashes, wear disposable protective sleeves and gloves when handling insulation materials.

4. Insulation Can Get Moldy

This leads to the question of mold. In humid climates, mold growth is always inevitable, but will insulation get moldy? While it depends on the type you installed in your home, any insulation can get moldy if left wet for too long. High humidity and hot attic temperatures will definitely create a favorable environment for mold to grow. Insulations made with organic materials, such as cellulose, will mold far easier than others such as fiberglass.

5. Insulation Can Get Wet

Some homeowners wonder if their insulation can get wet. Although insulation is meant to stay nice and dry, there are multiple ways your insulation can get wet, including:

  • Leaks from your roof and/or plumbing pipes
  • Air infiltration from your windows, doors, and gaps in your siding
  • Mold growth (spores entering through air infiltration)

Your primary concern should be to identify the source of moisture and have your roofer fix it. Cellulose fiber, however, can absorb water, making it difficult to aerate and dry out. The best course of action is to have it entirely replaced.

6. Insulation and Cancer

Long exposure to old insulations, such as asbestos, could cause cancer. However, if you have fiberglass insulation, you don’t need to worry! Aside from itchy rash and coughing if inhaled, fiberglass insulation will not cause cancer. Wearing protective clothing and a mask when installing fiberglass will protect your skin and lungs. If you’re only going into the attic a couple of times a year you should be fine.


If you notice any of the above issues with your insulation, contact Allstate Exteriors & Restoration in Ohio and Florida. Our experienced insulation specialist will inspect your insulation and work with you on a solution. Contact us today to begin the conversation with one of our friendly representatives.

February 21, 2025
Sustainable and Eco-Friendly Roofing Sustainability is a significant focus in the roofing industry, with homeowners seeking environmentally friendly solutions. Green roofs, which incorporate vegetation, and cool roofs, designed to reflect heat, are gaining popularity in Columbus due to their energy efficiency and environmental benefits. Benefits of Eco-Friendly Roofing: Energy Efficiency: These roofs help reduce energy consumption by keeping homes cooler in the summer. Environmental Impact: They lower the carbon footprint of your home. Durability: Eco-friendly materials often extend the lifespan of the roof. Property Value: Sustainable features can enhance your home's value. Popular Eco-Friendly Roofing Options: Recycled Shingles: Made from repurposed materials, these shingles reduce waste and are available in various styles to match your home's aesthetic. Cool Roofs: Designed to reflect more sunlight and absorb less heat, cool roofs help maintain comfortable indoor temperatures, reducing energy costs. Green Roofs: Incorporating vegetation layers, green roofs improve air quality and provide natural insulation. What is the future of eco-friendly roofing? The future of roofing is shifting toward sustainable materials and innovative designs that maximize energy efficiency. With advancements in solar-integrated roofing and self-repairing materials, Columbus homeowners can expect more options that balance sustainability with cost-effectiveness. Advanced Roofing Technology Technological advancements are enhancing the functionality and longevity of roofs. Homeowners are now integrating smart features and innovative materials to improve performance. Key Technological Innovations: Solar Roofing: Solar shingles blend seamlessly with traditional roofing materials, allowing homeowners to generate electricity without compromising aesthetics. 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Weather Resistance: They withstand extreme weather conditions, including heavy snow and high winds. Energy Efficiency: Metal reflects solar radiant heat, reducing cooling costs. What are the drawbacks of metal roofing? While metal roofing is durable and energy-efficient, some homeowners are concerned about higher upfront costs and potential noise during rainstorms. However, modern insulation solutions have significantly minimized these issues. Enhanced Aesthetic Customization Homeowners are moving beyond traditional roofing colors and styles, opting for designs that reflect their personal taste and enhance curb appeal. Current Aesthetic Trends: Bold Colors: Shades like blue, red, and plum are becoming popular, offering a striking contrast to conventional neutrals. Mixed Materials: Combining different textures and materials adds depth and uniqueness to roof designs. 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Benefits of Hiring Professional Roofers: Expertise: Professional contractors have the knowledge to recommend suitable materials and designs. Quality Installation: Proper installation extends the lifespan of your roof and prevents future issues. Warranty Protection: Many professionals offer warranties on both materials and workmanship. How do you choose the right roofing contractor? When selecting a roofing contractor, homeowners should check for licensing, read reviews, request multiple quotes, and ensure warranty coverage before making a decision. Making the Right Choice for Your Roof Staying abreast of the latest roofing trends empowers homeowners to make informed decisions that enhance their property's value, efficiency, and aesthetic appeal. Whether you're considering a roof replacement or exploring new designs, consulting with a professional roofing contractor can provide personalized solutions tailored to your needs. Ready to Upgrade Your Roof? 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