Rough In II
The house is in the final rough in stage. The masons are working on the brick exterior and the inside of the house is ready for drywall installation. All the windows have been taped and sealed on the exterior to prevent water intrusion. On the inside all windows and doors have been sealed with expanding foam to prevent air leakage around them.
All HVAC ducts have been located in conditioned spaces with the use of dropped ceilings and the ducts have been sealed with mastic and tape to make sure we have a very tight HVAC duct system. Also all duct openings have been protected to prevent construction dust and debri from entering system.
Extensive attention was paid to make sure that insulation was installed properly along with all thermal and pressure barriers. This makes the wall and ceiling insulation perform better increasing the insulation value. In normal construction this is not required by code and is not addressed during construction. I believe this is one of the most important issues that makes the house air tight and more energy efficient. It takes a lot of attention
to details. 
The wall insulation used is a blown in cellulose recycled product that will insulate the walls better than fiberglass batts because it fills the wall solid, where as fiberglass batts can leave voids or be compressed if not installed properly around pipes and electrical wires. More than 85% of the content by weight of AFT cellulose insulation is processed from recycled wood-based cellulose fibers. These fibers are chemically treated to create fire resistance. The additives are non-toxic, will not irritate normal skin, will not attract vermin or insects, and will not adversely affect other building materials.
All HVAC ducts have been located in conditioned spaces with the use of dropped ceilings and the ducts have been sealed with mastic and tape to make sure we have a very tight HVAC duct system. Also all duct openings have been protected to prevent construction dust and debri from entering system.
Extensive attention was paid to make sure that insulation was installed properly along with all thermal and pressure barriers. This makes the wall and ceiling insulation perform better increasing the insulation value. In normal construction this is not required by code and is not addressed during construction. I believe this is one of the most important issues that makes the house air tight and more energy efficient. It takes a lot of attention
to details. 
The wall insulation used is a blown in cellulose recycled product that will insulate the walls better than fiberglass batts because it fills the wall solid, where as fiberglass batts can leave voids or be compressed if not installed properly around pipes and electrical wires. More than 85% of the content by weight of AFT cellulose insulation is processed from recycled wood-based cellulose fibers. These fibers are chemically treated to create fire resistance. The additives are non-toxic, will not irritate normal skin, will not attract vermin or insects, and will not adversely affect other building materials.
posted by Bill Harrington at 9:19 AM
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