Is a radiant barrier better than insulation?

• <div><p>Radiant barriers and insulation serve different purposes, so one is not inherently better than the other. Radiant barriers reflect radiant heat, helping keep spaces cool, especially in hot climates, while insulation slows heat transfer through conduction. For optimal energy efficiency, it’s best to use both together. </p><p>Radiant barriers can enhance the performance of insulation by preventing heat gain in the summer and heat loss in the winter. The choice between them depends on specific climate conditions and the building’s design requirements.</p></div>

Should you remove old insulation before adding new insulation?

• <div><p>You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.</p><p>However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.</p></div>

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*The Angi rating for Doorbell Installation companies in Purvis, MS is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Doorbell Installation needs.

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Last update on October 09, 2025

Reviewed in October 2025
I had a new double wide installed and they assisted on the power installation and plumbing. They are very attention to detail. They made sure all point of entry thru the floor from the outside were sealed. The plumbing was done to my design layout.
Wood-Worx Home Renovations
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Reviewed in September 2024
Blake and his team did a phenomenal job. Our house has some unique architecture and I was not sure how the gutter install would go. But Blake had a solution for every obstacle. Looks perfect and they are draining great. Water no longer pools around house.
Frazier Contracting Services
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Reviewed in July 2024
Ken is easy to work with and does whatever I ask. He works fast and does his best. He gives 100%. It is important to him that I am happy with the job he has done. He not only installs metal roofs but does remodeling and makes whatever repairs are necessary. He is not afraid to try just about...
Mason Residential Services
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Reviewed in April 2024
Mike Star is a man of his word. He installed my garage opener installation with expertise and professionalism. This man even purchased and installed a new pulley on my garage at no cost to me. He went way above and beyond of duty. Please listen to this review, if you need someone who is...
Mike Starr Doors
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Reviewed in January 2024
Hired Justin for a kitchen remodel at my home in Purvis. I was so impressed with his work ethic and top level skills that I offered him another project installing an 8x40 storage loft in my shop. Once again - excellent work ethic & incredible results. I have a few more projects to be done...
Justin Beeson
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Reviewed in July 2021
This company did a great job installing our new back splash in the kitchen. The installer did the job in one day and that was including putting in new backer board. I would definitely recommend them for a project you may have coming up.
Footprints Floors of The Gulf Coast
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Reviewed in February 2021
Jamesâ s crew remolded a bathroom for us installing ship lap on the walls. The had to fight thru extreme cold for a week here in south Ms. they did a very good job and he has a crew of very qualified workers. They were polite and went out there way to ensure a quality job
Monroe Construction
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Reviewed in October 2020
WJ is a great company to call when you need anything done with quality and speed. He was able to explain in detail of what was needed and required as far as installing and correcting my electrical panel. He then got the permit pulled faster than any other contractor Iâ ve hired in the past. The...
WJ Services, LLC
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Reviewed in January 2020
Professional spray foam installation. Clean up great. Sales staff knowledgeable about product
Eco Energy & Solar Solutions, LLC
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Reviewed in December 2018
Oven installed professionally and when promised
Best Buy Stores, L.P., dba Geek Squad
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Top-Rated Doorbell installation pros in Purvis - Updated Nov 2026

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Doorbell Installation FAQs, answered by experts

Improves water efficiency, reduces oversight, and enhances landscape health.

Radiant barriers and insulation serve different purposes, so one is not inherently better than the other. Radiant barriers reflect radiant heat, helping keep spaces cool, especially in hot climates, while insulation slows heat transfer through conduction. For optimal energy efficiency, it’s best to use both together.

Radiant barriers can enhance the performance of insulation by preventing heat gain in the summer and heat loss in the winter. The choice between them depends on specific climate conditions and the building’s design requirements.

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

The primary reason that insulation saves you money over time is that it reduces your energy bills by making your home more energy efficient. A crucial part of an insulation system is a properly installed vapor barrier. Local building codes dictate whether your insulation requires a vapor barrier based on the type installed. While some high-quality wool insulation may not technically need a vapor barrier, most municipalities still require one to meet code.

Open-cell foam insulation has a life span ranging between 15 to 25 years when well cared for. However, the material may degrade sooner in areas with high humidity or after prolonged water exposure. Proper installation and maintenance can maximize its longevity but requires close monitoring. Closed-cell foam insulation has a longer life span of 30 to 50 years.

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