For the insulation, the builder used
blown cellulose and closed cell spray foam on the exterior walls making the home extremely affordable to heat & cool.
These walls are typically insulated with
blown cellulose insulation (R - 3.7 / inch) or fiberglass batt insulation (R - 3.5 / inch), and overall installed insulation R - values in excess of 50 are possible.
Roof Assembly: Rafter framed vented attic with R - 50
blown cellulose insulation.
More on choosing efficient ceiling fans... How to
blow cellulose insulation in existing walls... Pole mounted PV detailed how - to... New worldwide degree - day tool... Update: Shading effectiveness of overhangs vs solar screen on windows...
The method I've seen most often is
blowing cellulose insulation into a hole punched into the plaster wall.
Not exact matches
According to Consumers Report your attic should have 11 inches of fiberglass (ie: pink insulation) or rock wool (ie: Roxul) or 8 inches of
cellulose (ie:
blown insulation), at the very least.
Grid Tied PV - Nearly 100 % on site electric generation -
blown in
Cellulose & Air Sealing in the attic after extensive energy audit - Gas back up Solar hot water system with dehumidification loop - Window - quilt insulating window treatments The house is a fairly standard colonial that happened to have a great south facing roof in the back.
In 1992 when I proposed to Consumers Energy the use of paper fiber as fuel, a former employer who used recycled newspapers to manufacture
blown - in
cellulose insulation stated his fear that it would compete with his ability to obtain the raw material for his product at an affordable price.
What it is:
Blow - In Insulation, also referred to as
cellulose insulation is a soft fiber material, often made of
Dense packed
blown in
cellulose.
The walls were retrofitted to add two 2» layers of polyisocyanurate rigid insulation to the exterior of the existing wall sheathing and
blown - in
cellulose insulation to the existing 2x4 walls.
It's made from fiberglass, minerals, or
cellulose and is
blown in a layer along your attic floor.
In cold climates, insulation can be added by cutting 3 - inch holes into interior walls,
blowing in
cellulose, then covering the openings.