onsdag 11 februari 2015

Wet or Damp Existing Insulation

Wet or Damp Existing Insulation—Adequate attic ventilation shall be provided when the existing insulation is found to be wet or damp, and the insulation shall be allowed to dry prior to installing additional attic insulation. If the insulation fails to dry after a reasonable period of time, it shall be replaced. • Customer Responsibilities—The customer shall be responsible for seeing that preparation work such as repairing the ceiling, roof leaks, pipe leaks, vent leaks, removing objects stored in the attic, etc., is completed if failure to do so would adversely affect the installation of additional insulation. • Blocking Materials—Blocking materials shall be installed in accordance with the following requirements: − Mineral fiber batts shall not be placed on the narrow edge. − Sheet metal used as firestopping or blocking material shall be secured in place using nails, tacks, staples, or screws. − Gypsum board/sheetrock or wood shall be secured in place using nails or screws. When using these materials as blocking, the clearances to both the insulation and the blocking shall be maintained. − Blocking materials shall be installed so that their height is above that of any surrounding loosefill insulation material. • Clothes Dryer Vents —Clothes dryers shall be vented to the outside. • Plumbing and Other Pipes, etc.—Cracks and gaps around ceiling penetrations, such as plumbing, exhaust fans, etc., should be sealed prior to installing ceiling insulation. • Recessed Light Fixtures—Insulation shall not be installed within 3 inches of the sides of a recessed incandescent or fluorescent light fixture (including its wiring compartment and ballast), and insulation shall not be installed over the top of such fixtures. The 3-inch air space shall be provided by utilizing acceptable blocking material

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