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Albany Roofers: Article About Roofing Problems

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Insulation is a critical part of a home's energy efficient features. Many homeowners seek to increase their home's insulating properties in order to meet the U.S. Department of Energy's recommended R-value for the area. While insulating a home is essential for efficiency and comfort, there can be too much of a good thing. Densely packed loose fill, cellulose or fiberglass insulation could actually cause more harm than good. The best way to have a roof and attic insulated is to work with experienced Albany roofers who are familiar with the correct techniques for installing each type of material.

The first problem that can happen with insulation that is pushed right up against the roof's decking and the home's wall assembly is condensation. If the roof and wall become wet due to outdoor humidity or driving rain, some of this moisture seeps through to the wooden portions of the house. This turns into condensation when it reaches the warmer interior space of the attic. Condensation makes the insulation wet, reducing its effectiveness and lowering its thermal resistance. The insulation would also reduce the wood's ability to dry out. The longer wood stays wet, the more likely it is to rot.

Another issue of concern with tightly packed insulation is reduction of its R-value.

The roofing experts at Ideal Construction of Albany NY can assist you with any questions regarding windows or roofing.

Compressing insulation in order to fit more of it into a tight space will prevent fresh outdoor air from coming in through the soffit vents. Even if there are no intake vents, which is often the case with older houses, the loss of R-value is a good reason to not cram in as much insulation as possible.

Indoor humidity control can also become an issue when insulation is crowded into a space. The warm air within the attic gains humidity from indoor activities that take place within the household, such as cooking, showering and running the dishwasher. The warm air retains the moisture and affects the roof's wooden structures and the organic materials within the insulation. If the moisture is not able to escape through the roof's ventilation system, structural damage may develop within the attic.

To conform with national building codes, insulation cannot be touching a roof's decking if the roof is not vented and the insulation is permeable to air. The only acceptable kind of insulation that can be present in a non-vented roof is closed cell sprayed foam. The spray foam insulation can touch the roof's decking and still conform to code requirements.

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