Check Your Attic for High Temps – Insulation and Ventilation Will Solve the Problem

Published on: August 9, 2012

An attic’s temperature can reach as high as 150 degrees on a hot summer day. Hot attics put a strain on air conditioning systems. A strained AC system is more likely to need costly repairs down the line and to need replacement before its time. Without adequate attic insulation, your energy bills can be as much as 40 percent higher than they need to be.


Proper insulation and ventilation are both needed to increase an attic’s energy efficiency. In the cold months of winter, the goal is to keep the home warm and the attic cool. Attic ventilation helps keep snow and ice from melting and then refreezing, causing roof-damaging ice dams. Insulation helps keep household heat from rising to the attic.


In the heat of summer, insulation helps keep heat from entering the living areas of your home while ventilation helps move hot air out of the space. Ventilation increases an attic’s energy efficiency, cutting cooling costs by as much as 20 percent. The right combination of insulation and ventilation can reduce attic temperatures by 50 degrees.


Insulating an attic without impairing ventilation takes considerable skill. The attic must be thoroughly assessed before work begins to ensure that no moisture is entering the space, either from lack of ventilation for from roof leaks. Wet insulation is not only ineffective but can cause significant damage to your home. Care must be taken to insulate the space evenly without blocking vents.


Safety is another important consideration when insulating an attic. Fire-safety clearance requirements must be carefully observed. Attics can contain multiple devices that emit heat, such as housings for light fixtures, chimneys, flues and exhaust fans. Our skilled technicians follow all regulations, installing metal flashing around heat-emitting equipment to protect your home from fire.


Most attics are insulated with fiberglass batts, spray foam or blown-in fiberglass or cellulose. All insulating products are rated by an R-value, a measurement of the product’s energy efficiency. The high the R rating, the better the product is at stopping the flow of heat. The ideal R rating depends upon a number of factors, including where you live, your attic’s size and configuration as well as your home’s ventilation system. Professional installation is recommended to ensure the best R-value and energy efficiency for your home.


The right balance of attic insulation and ventilation is one of the most cost-effective ways to increase your home’s energy efficiency, significantly decreasing your heating and cooling costs. Installation service can pay for itself in just one or two heating or cooling seasons and can continue to save you money for many seasons to come.