Attic Insulation

Attic Insulation - Preparation Work - Checklist • Verify that all specified preparation work was completed. • Verify that no insulation has been added that would cause damage to the structure. • Verify that any needed preparation work, such as correcting roof leaks, to ensure the insulating ability of the insulation material has been completed. • Ensure that proper insulating materials have been placed around knob-and-tube wiring in accordance with TVA standards. • Ensure that all sources of infiltration (air leaks) from the conditioned area into the attic have been properly sealed. • If the vapor barrier was improperly installed on the existing insulation, verify that it has been properly installed or made ineffective before additional insulation was added. • Ensure that approved cover plates have been installed on electrical junction boxes and that all electrical connections are properly enclosed or the electrical junction boxes have been properly blocked around. • Verify that proper clearances and blocking have been provided around all heat-dissipating devices and objects, such as recessed light fixtures, chimneys, flues, and exhaust fans. • Verify that proper blocking has been provided when required around other devices, such as the attic access or stairway, doorbell transformers, whole-house attic fans, exhaust fans that are not vented to the outside, etc. • Ensure that the proper ventilation air space exists above insulation materials that previously contacted the roof sheathing (1-inch minimum). • Ensure that clothes dryer vents have been extended to the outside.
Attic Insulation - Unfinished Attics - Checklist • Verify that all work specified on it has been completed by comparing it with the Heat Pump Installation Inspection Checklist TVA 6254T and the installed materials. • Verify that approved materials have been installed. If loose-fill insulation was installed, verify that the installer left an empty insulation bag on the premises. • Ensure that insulation has been installed only in the areas which should have been insulated. • Ensure that the material installed meets the R-value which should have been installed. • Check that the builder's statement (attic card) has been attached to a rafter, joist, etc., is clearly visible from the attic access entrance, and has been completed in accordance with TVA standards. • Determine from the coverage chart on the attic card if the correct number of bags of loose-fill material (if installed) has been installed. If the density of the loose-fill insulation appears improper, proceed with the following: • Ask customers if they counted the number of bags actually installed and obtain the number.