Insulate Addition With Spray Foam Project, Summer 2016. Knoxville,TN. $4.5K.

This customer had built a 740 sf addition to their home, using advanced framing techniques and installing energy-efficient windows and doors. Their goal was to make the addition as energy efficient as possible by also installing spray foam insulation.

First, the area was prepared by masking off doors and windows to protect them from overspray.  Then, 2 inches of closed cell spray foam was applied to the wall cavities, to achieve R-14.  This was followed by installing 6 inches of open cell foam in the roof cavities, to achieve R-22.

Due to the air sealing qualities of spray foam, the true insulating value of these materials is somewhat better than these ‘prescriptive’ R-values, which were established for more traditional insulation materials such as fiberglass and cellulose.  This addition will be very comfortable and easy to heat and cool during every season as a result.

Site Drainage Project, Summer 2016, Knoxville, TN.  $3.6K

This customer had a home which was located on a hill below several others.  As a result, water from all these properties was running downhill to his yard and infiltrating his foundation during rain events.  The exterior siding and the sheetrock on the interior of his home was being damaged by this water.

Water is a building’s worst enemy.  If a building’s components are not protected from exposure to water, serious structural damage can result.  The ground around a building should be sloped to direct surface water away from the foundation.  This is a crucial element of design that is often overlooked by builders and developers.

To rectify this problem, Green River installed an 80 foot drain to intercept and move water from the adjoining properties away from the building.  We also tied in the home’s gutter downspouts that were in proximity to the drain, to move that water away as well.

A small section of the home’s retaining wall was rebuilt and the interior bathroom wall was repaired by removing and replacing the sheetrock.

ENERGY STAR Metal Roof Project, Spring 2014. Knoxville, TN. $46K. This customer had an existing metal roof that was poorly installed and made of inferior material. The paint coat was faded and flaking off. The customer’s existing roof was leaking at the valleys and at the fasteners. The fasteners were installed on top of the ridges, which were too narrow to fully support and seat the washers and allow them to seal out water.

Green River replaced the roof with 29 gauge ENERGY STAR metal, guaranteed for 40 years. This metal has a pigment in the paint coat that reflects sunlight and reduces attic temperatures by as much as 50 degrees. The existing roof panels and underlayment were removed and the sheathing was inspected for damage, prior to starting the new installation.

First, new drip edge was placed along the roof’s edge, then synthetic underlayment was installed, followed by new 3 foot wide 29 gauge ENERGY STAR roof panels factory cut to the correct length. Sidewall flashing, valley flashing, transitions, rake trim, ridge and valley caps were also installed. The finished roof consisted of 28 different facets, with pitches ranging from 12/12 to 4/12 and an overall size of 54 squares.

As part of the project, the existing chimney was rebuilt. It was not tall enough to draft properly. It was not properly flashed and water was coming into the house around it.