Comments on: 10 Strategies to Increase the Energy Efficiency of Your Homes http://www.tallwallosb.com/10-strategies-to-increase-the-energy-efficiency-of-your-homes Taller OSB Wall Sheathing Sun, 13 Mar 2011 02:30:40 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: admin http://www.tallwallosb.com/10-strategies-to-increase-the-energy-efficiency-of-your-homes/comment-page-1#comment-5 admin Tue, 01 Jun 2010 14:42:53 +0000 http://www.tallwallosb.com/?p=249#comment-5 Hi Martha, Good question. Sealing an attic that has typical attic insulation should not be done. Air movement should be allowed to move freely from the soffit area to the upper areas of the roof and escape out through ridge vents or other types of roof vents. Blocking that air movement has the potential to lead to moisture issues. A standard formula for attic ventilation is 50% net free area along the soffits and 50% net free air at the peak of the roof. In my opinion a properly ventilated attic will not create an environment for mold and homes have been constructed this way for decades. Moisture problems can arise in attics from other factors such as bathroom, kitchen or dryer vents that are not properly vented outside. Your local building officials can advise you on what the local building code requirements are for ventilation. Hi Martha,
Good question. Sealing an attic that has typical attic insulation should not be done. Air movement should be allowed to move freely from the soffit area to the upper areas of the roof and escape out through ridge vents or other types of roof vents. Blocking that air movement has the potential to lead to moisture issues. A standard formula for attic ventilation is 50% net free area along the soffits and 50% net free air at the peak of the roof.

In my opinion a properly ventilated attic will not create an environment for mold and homes have been constructed this way for decades. Moisture problems can arise in attics from other factors such as bathroom, kitchen or dryer vents that are not properly vented outside.

Your local building officials can advise you on what the local building code requirements are for ventilation.

]]> By: martha http://www.tallwallosb.com/10-strategies-to-increase-the-energy-efficiency-of-your-homes/comment-page-1#comment-4 martha Fri, 28 May 2010 05:42:35 +0000 http://www.tallwallosb.com/?p=249#comment-4 should the builder air seal the attic,if it is not air seal will the moister caused mold should the builder air seal the attic,if it is not air seal will the moister caused mold

]]>