Insulation for Attic - Money Saving Tips for Home Owners

Written By Admin on Senin, 25 Juni 2012 | 01.28

By Pavel Romanzi


Insulation for attic helps protect it against heat loss in very simple and cost-effective manner. Spray foam insulation is effective both against moisture and extreme weather conditions.

Spray Foam Insulation for Attic Floors

An attic insulation project often follows the preferences and bias of the contractor who undertakes the work. Whenever your attic has many vents, you may need to insulate the floor of the attic. This keeps the ceiling of the building insulated and prevents heat leaks. In winter, the rooms are warmer and in summer they are cooler, lowering the energy expenditure significantly.

Spray foam insulation for attic is applied between the floor joists, and seals off any cracks and leaks effectively. The remaining part of the attic may remain uninsulated, being vented through gables and soffits. While this is a popular approach, it isn't the most effective and leaves the attic practically unusable because of extremes of temperature.

Foam Insulation for Attic Roofs - Under certain conditions it is more attractive for foam insulation for attic roofs to be applied directly on the undersurface of the roof. The foam insulation material is sprayed between the hoists and along the rim of soffits and gables. The gaps in the attic roof are closed from any air leaks, keeping the temperature inside the building somewhat constant.

Standard construction practice revolves around venting the attic to permit air circulation and protect against moisture building up within the attic. In this context, the idea of insulating the under side of the attic roof is questioned by some experts. Debate in the industry centers around the use of insulation for attic roofs. But vented attics can overheat in summer. Temperatures well above 100 degrees isn't uncommon. And air conditioning ducts and vents must function under these conditions, increasing the consumption of energy and causing heat and moisture build up around these pipes. Condensation occurs around the ducts and can damage the attic if left unattended.

By applying spray foam insulation for attic roofs on the inside, the entire attic is insulated against heat from the roofing shingles and sheath. The attic itself becomes more moderate in temperatures. It is similar in comfort and ambient temperature to the rest of the building, avoiding the build up of moisture around the pipes and vents. Builders, however, are not in favor of such an approach. They claim the risk of damage to roofing shingles is greater from overheating, caused by the insulation layer just beneath it. They also warn against damage to the roof frame because wood needs some space around it for air circulation. To balance against this is the contention of furniture makers that when wood is allowed to 'breathe', it has a greater risk of damage because of moisture within the timber.

Shingle manufacturers also debunk this theory, arguing that insulation for attic has absolutely no impact on their products. Shingles are protected against temperatures and other natural elements to an extent that a heated attic won't really affect it and there is no actual risk of shingles being damaged. Their recommendation is for the use of shingles even in unvented attics. Roofing contractors who are against insulation for attic using spray foam on the interior are therefore in a minority when it comes to a recommendation about the best form of attic insulation.




About the Author:



0 komentar:

Posting Komentar