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Purchasing foil and plastic facings for the boards can increase its R-value much more. Cons of stiff insulation boards The majority of foam insulation boards are made with a chemical flame retardant. In spite of its fire resistance, The National Institute of Environmental Health Sciences says these retardants can cause severe health impacts like cancer and reproductive toxicity.

R-value: R-6. 5-6. 8 per inch R-5 per inch R-3. 8 per inch Batt insulation Image source: Buildipedia Perhaps the most typical type of roof and attic insulation is batt blanket insulation. Though mineral wool insulation batts are making a return, these rolls are typically made from fiberglass and are one of the least pricey insulation products.

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Pros of batt insulation These rolls are made and pre-cut in numerous sizes to fit most ceiling joists and rafters. They're readily offered from any big box house improvement store and easy to transportation. Fiberglass batts generally withstand wetness and are frequently suggested to homes in more damp climates.  D R Roofing  of batt insulation Making batt insulation needs a great deal of energy, adding to more air contamination than other procedures.

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Glass fibers from these insulation rolls can irritate the skin, eyes, and trigger possible lung damage. Ensure you use protective clothing prior to you perform the setup. R-value R-2. 9-3. 8 per inch Loose-fill or blown-in insulation Image source: My Green Guard Available in either fiberglass or cellulose, this kind of insulation is often blown into hard-to-reach places like a roofing system or unfinished attic through a long flexible tube.

Pros of fiberglass loose-fill insulation Though fiberglass insulation includes small shards of glass and can catch fire or melt, blown-in fiberglass is completely fire resistant. Since cellulose is made from paper, it is most likely to capture fire. Cons of fiberglass loose-fill insulation The small fibers of glass in the insulation can irritate your skin and can trigger lung cancer gradually if inhaled.

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The U.S. Department of Energy states that when temperature levels reach listed below freezing, fiberglass loses as much as 50% of its R-value because of the severe difference in temperature levels between the interior and exterior of the home. Pros of cellulose loose-fill insulation: Made up of paper and sometimes recycled newspaper, cellulose insulation is environmentally friendly and does not position any health issues.