Adding Insulation to a Lancaster, VA Attic

Challenge

This Lancaster, VA homeowner contacted us about having insulation installed in the attic.

At the inspection, we found that there was no existing insulation in the space. This was impacting the comfort of the rest of their home. With no insulation in the attic, there is a hole in the system that allowed for air and heat loss.

The homeowner wanted a solution that would help make the home more comfortable.

Solution

With no existing insulation in the attic, first installed PVs (proper vents) that allow for proper ventilation of the roof without allowing drift in the insulation from airflow and keep insulation from falling out of the soffit vents.

Next, we installed plywood damps around both attic accesses to prevent any insulation from falling through. We also insulated the back of the scuttle doors with foam board insulation. This helps reduce the heat transfer from the attic to the access door and into the space below.

We then installed an R-38 of blown-in cellulose insulation. The cellulose product we use is 85% recycled materials such as newspaper, and 15% new material. It contains a borate solution that deters pests and rodents. Cellulose is non-flammable, so in the instance of a fire, the material will not ignite.

By adding additional insulation in the attic, the homeowner will experience less radiant heat in the rooms below as well as reduce the transfer of heat from the living space into the unconditioned attic space. This will make the rooms in their home more comfortable