Bob is joined by Mikde Hobson of Westchester Insulation as the crew prepares one of the Mashpee houses for insulation installation. Hobson explains that this is a patented insulation system that uses special fabric stapled and drawn tight across any cavity that needs to be insulated. The crew works with pneumatic staplers to get the fabric in place across all the walls and the joists of the cathedral ceiling. The fabric is not intended as a moisture barrier of any kind and is just there to hold the insulation in place and prevent it from settling. Hobson shows Bob the white fiberglass that will be blown into the cavities. It is white because it is a virgin product, completely free of treatments, binders, or chemicals. Certainteed and Johns Manville both produce fiberglass insulation that is suitable for the Blow-In-Blanket installation. Once all cavities have been enclosed, the insulation contractor cuts a slit in the fabric and inserts a hose through which the fiberglass is blown. The cavity is filled to a density of two pounds per cubic foot which is visible to the eye by a slight bulge in the fabric. At this density, an R-value of 15 is achieved in two-by-four cavities like walls. In attics and ceiling cavities that are two-by-six, an R-value of 38 can be achieved. This insulation is inert and will not support moisture, mold, animals, or insects. It also serves as a sound insulator and can be blown in around drain lines, in interior partitions, and around tubs and showers. Blo-In-Blanket insulation is suitable for new construction or retrofit applications where it is blown in through the sheathing from the outside or through interior drywall to fill wall cavities. Blow-In-Blanket insulation costs about 50 to 60 percent more to install than traditional batt insulation, but offers such energy efficiency that it pays for itself within two to four years.

Developer Joe Valle explains Massachusetts' Act 40B to Bob. This statute allows a developer to make full use of the land, without the constraints of stringent town zoning laws, in exchange for the creation of quality affordable homes. This four-acre parcel would typically have two homes, but Act 40B has allowed for the development of 11 homes, four of which are affordable in price. They will sell for half the price of the market homes in the neighborhood. The remaining homes will be sold at market price, but by law all of the houses must be of the same quality, size, workmanship, and layout.

Robert Kirkpatrick from Rinnai joins Bob to explain the tankless hot-water system being installed in the Manhattan Brownstone. Kirkpatrick explains that there are three key advantages to the tankless system. There's a huge space savings since the unit mounts on a wall, sparing the 12 to 16 square feet of floor space typically dedicated to the water tank. These tankless systems are also 70 percent more efficient than electric hot-water tanks. Most impressive of all, they provide an endless supply of hot water since the water is heated on demand rather than kept in storage. Kirkpatrick shows Bob the flow sensors that receive the water, generate the demand for heat, and gauge the amount of energy necessary to heat it to the desired temperature. The water is heated as it passes through the copper heat exchanger at the top of the unit. A double-wall pipe serves as the combustion air intake and the exhaust for the system, with a vent chamber up the middle surrounded by air intake along the perimeter of the pipe. This system is cost efficient as well, with payback of the initial investment in two to four years.

Faux painting adds grace and sophistication to any room. Color washes create a softly patterned handmade effect that cannot be matched by any wallpaper patterns.

A new tree can improve the look of a yard and add personality to a home.

The technique of faux painting adds grace and sophistication to any room. Striped effects create rich textures and handmade detail that cannot be matched by wallpaper patterns, and they make a room with a low ceiling appear taller.

The EnergyWise House's fireplaces use state-of-the-art technology to produce clean, efficient heat. Ross Morrison from Heat-N-Glo joins energy expert Steve Easley on location for a preview of a few of the heating technologies that will be used in the home. On display are 33,000 Btu direct-vent model capable of heating up to three rooms, and indoor/outdoor model that does not require a flue, and a portable "campfire" style that can run on propane or natural gas.

Internet Home Alliance's Tim Woods discusses home security options, including sensors, installation, and wiring.

Open Joist 2000 is an engineered wood system designed to maximize solid-sawn lumber strength while minimizing lumber waste. This truss and joist system features fully trimmable joists that are ordered to length from an inventory that is maintained by the manufacturer. These joists feature an open-webbed design that allows wiring and pipes to be run through the joists, without the need for a drop ceiling or lost headroom.