Attic Insulation FAQS

Frequently asked questions about attic insulation & ventilation services.

Why should I be concerned about the temperature in my attic?

A lot of people wonder why the temperature of their attic matters if nobody usually spends an extended period time in the attic. The reason why you want to control your attic temperature is because most attics are where air conditioning duct work starts. If this ductwork is hot from sitting in a hot attic, heat will infiltrate your home’s air distribution system so that even if your thermostat is set to cool your home, the air coming out of your air registers will be warm. Heat can also infiltrate the rest of your home through conduction, where it moves through your attic’s floor and out of your ceiling.

How does a cooler attic save me money?

A cooler attic when it’s warm outside ensures that less heat penetrates your home’s ductwork so that the cool air coming out of your home’s air registers is about as cold as the air that passes through your home’s cooling coil.

How does attic insulation work?

Attic Insulation prevents hot-air built up in your attic from conducting through your ceiling and into your home. In hot weather, attic insulation lessens the burden on your A/C unit and saves you money on the cost to cool your home. In the wintertime, attic insulation prevents the hot air that rises to your ceiling (because of convection) from conducting into your attic space, saving you money on the cost to heat your home.

Where is attic insulation installed?

In-between ceiling/floor joists in your attic.

Which attic insulation is best?

John Moore’s Energy Saving Attic Program uses John Manville Climate Pro® Formaldehyde-free™ Blow-In Fiberglass Insulation because:

  • It’s formaldehyde-free and will not off-gas formaldehyde in the indoor environment.
  • It’s thermally efficient, providing effective resistance to heat transfer. Unlike cellulose products, JM Climate Pro insulation does not settle so no R-values is lost after installation.
  • It provides sound insulation and absorption
  • It’s fire-resistant and non-combustible
  • It’s non-corrosive so it does not accelerate corrosion of pipes, wiring, or metal studs.
  • It uses resilient inorganic glass fibers that cannot rot, mildew, or otherwise deteriorate.
  • And it provides complete coverage effective in tight spaces, areas with large amounts of cross-bridging, or areas with small gaps and voids.

What is attic insulation r-value?

R-Value measures the capacity of an insulation material to resist heat flow through conduction. The higher the R-value, the higher the capacity of the insulation to resist heat flow.

What does attic insulation with asbestos look like?

asbestos-contamination

How does attic insulation work?

Attic Insulation prevents hot-air built up in your attic from conducting through your ceiling and into your home. In hot weather, attic insulation lessens the burden on your A/C unit and saves you money on the cost to cool your home. In the wintertime, attic insulation prevents the hot air that rises to your ceiling (because of convection) from conducting into your attic space, saving you money on the cost to heat your home.

Why add attic insulation?

Typically, the R-Value of attic-insulation decreases when it is exposed to moisture because moisture flattens insulation, which destroys the air pockets responsible for trapping hot air. It’s okay to add insulation on top of old, flattened insulation.

Why remove and replace attic insulation?

If there are rat-droppings or other signs of contamination such as mold or mildew, then we highly recommend removing the old insulation and addressing those problems before adding new insulation.

Why is attic insulation important?

Adding insulation to your attic’s floor and in-between ceiling/floor joists in your attic is the best way to prevent heat from conducting between your attic and the rest of your home.

How deep should my attic insulation be?

In Texas, the recommended R-Value for insulation is a base level of R36, which means a minimum of 15” of coverage for John Manville Climate Pro® Formaldehyde-free™ Blow-In Fiberglass Insulation.

How does attic insulation help in the summer time?

Attic Insulation prevents hot-air built up in your attic from conducting through your ceiling and into your home. This lessens the burden on your A/C unit and saves you money on the cost to cool your home.

How does a Radiant Barrier “reflect heat” if it’s inside of my attic?

Along with reflecting heat, shiny surfaces do not radiate heat energy very well. So the shiny surface of LO/MIT™ Spray-on Radiant Barrier Coating facing down into your attic works because the heat absorbed by the roofing material is not easily emitted or transferred to the attic space.

What are the advantages of an active ventilation system over a passive ventilation system?

Passive ventilation systems do not account for enough air or moisture flow to maintain proper air intake and exchange- especially in a humid climate like Houston. Without the boost of an active system, moisture will still gather in your attic, damaging your attic’s insulation and possibly contributing to mold and mildew.

Why should I be concerned about Moisture in my attic?

Moisture in your attic can cause mold and mildew to form, create a suitable habitat for rodent infestations, and cause sheetrock to rot that could spread to the rest of your home.

Will I save money with John Moore’s Energy Saving Attic Program?

Yes, you will notice immediate savings on your energy bill after reducing the amount of of time and how hard your AC has to run to get your home to a comfortable temperature. You will also preserve the integrity of your home when you reduce the humidity levels in your attic, adding extra years to your home’s overall life-span.

How much Money will I save with John Moore’s Energy Saving Attic Program?

How much you save depends on factors like the size of your home, how well sealed and insulated the rest of your home is, and whether your home is already well shaded. With The Attic Breeze®, you are guaranteed to save 30% on your federal taxes. The Attic Tent promises to pay for itself in at least 3 years in energy savings. And the EPA claims that the homeowners who insulate their attic save an average of 15% on their heating and cooling bill.

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