Poorly Installed Roofing Insulation Problems
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Signs and Solutions For Improving Roof Insulation Problems
A well insulated roof will keep the inside more comfortable and reduce energy bills at the same time. Insulation is so important the federal government and state governments offer rebates and incentives for property owners that add insulation.
However, you have to make sure that things are done right or you won't enjoy these benefits. A poor insulation installation will do the exact opposite, and that can cause problems for your roof as well.
Think you have roof insulation issues?
Issues Related to a Poorly Insulated Roof
A well insulated roof will help control the flow of warm air and cool air in a structure. While the roof is able to keep most of the heat and cold air out, some of it will penetrate through into the attic space and eventually the rest of the home or building. Insulation helps to prevent unconditioned air from impacting the spaces below that are being regulated with a heating and cooling system.
There are two types of insulation that need to be installed correctly around the roof: attic insulation and roof insulation. Attic insulation is within the attic space in general, whereas roof insulation is applied directly to the top of the roof deck during roof replacement or a new roof installation. There is also insulation that can be applied directly to the underside of the roof deck.
If insulation is inadequate you'll notice some issues that can create big problems.
Higher Energy Consumption
The most obvious sign that you have insulation issues is high utility bills. If you're having to constantly run the HVAC system to keep it comfortable inside it's a sign insulation improvements are needed.
Mold Growth From Condensation
Home insulation of all kinds helps to keep the temperature inside regulated and constant so it doesn't go from hot to cold as conditions change outside. Going from hot to cold isn't just uncomfortable. It creates condensation that can lead to unsafe conditions inside. A damp attic is the perfect breeding ground for mold growth that can spread to other areas of the structure.

Top Causes For Insulation Problems
There are three primary issues that lead to insulation problems around the roof:
Not Enough Insulation
When there isn't enough insulation, or none at all, you aren't going to get the full effect. It may insulate some, but not as well as if there was an adequate amount of insulation.
Inadequate R-Value
R-value is a measurement that indicates how well a material or product prevents heat from getting through. R-values range from 8 to 60. The higher the number the better the material insulates. The density, thickness and type of material all play a role in R-value. If you choose insulation with a low R-value it may not be adequate for the structure.
Roof Leaks
A roof leak is a major problem for a lot of reasons. One problem many homeowners don't consider is the damage a leaking roof can do to the insulation on the roof and in the attic space just below. Insulation is not going to be effective if it gets wet. It's just one more reason why regular roof maintenance that checks for leaks is so important.

How to Correct Improper Roof Insulation
There's one surefire way to correct improper roof insulation - install adequate insulation. If you are replacing your roof or installing a new roof, you can easily add roof insulation between the roof deck and the roofing materials. But there are some things to consider when you're choosing roof insulation.
Know What R-Value is Appropriate
There are two considerations when you're deciding which R-value your insulation should have: where the structure is located and where you're putting the insulation. Energy Star has created a useful map with the recommended insulation R-values for different regions. Here in Central Texas the recommendation for attic spaces is to have an R-value of 38-49 depending on whether or not insulation already exists.
For roofs the recommendation is to use insulation with an R-value of 30-49 or even up to 60 depending on the location.
Decide What Type of Insulation Will Work Best
At one point the vast majority of insulation was fluffy fiberglass that was rolled out onto the floorboards of the attic. Today, there are more options that can offer better insulation in more places around a home or building. The type of insulation also influences the R-value range. Common insulation options include:
Blown-In Insulation - This is the most affordable but has the lowest R-value. It's a loose material that sits on the floor of the attic space.
Spray Foam Insulation - Spray foam is a mid-level insulation product that can be applied to the underside of a roof without vents.
Perlite Boards/Foam Boards - This type of insulation is more rigid and can be applied to the top or underside of the roof deck in the attic space. It has the highest R-value per inch.
Make Sure the Insulation is Properly Installed
Even if you choose the right R-value and type of insulation for your attic and roof, you can run into issues if it isn't installed correctly. Proper insulation installation is going to depend on the type of insulation that you're using.
Roof insulation that's applied above the roof deck should be done by a professional roofer. This will ensure that the roof deck isn't damaged in the process and that the roofing material is properly secured.
At LOA we provide roofing solutions and general construction services that will make any property more comfortable and secure. If you need help with your insulation installation in the Austin, TX area, give us a call at 512-375-3654.
