How to detail the foam at corners and connections when tightening the energy efficiency of an old house

Flashing a humpy old roof valley requires a little give and take, and a backup plan

Dealing with dips and making clean overlaps

The biggest crack in the house, revisited for #ThrowbackThursday

Warm and dry basement living space begins with keeping the basement dry—duh. All moisture from outside must be directed away from the interior walls and slab.

Wrapping an old house in a blanket of insulation is a no-brainer when you're replacing the roofing and siding anyway

Covering the roof of an old house with a blanket of insulation makes the house more comfortable and it cuts energy use.

The second layer of foam is the air barrier and drainage plane.

 #ÜberRoof: A site-built ventilated SIP roof sandwich. 

A faster way to build affordable housing in a tropical climate. It is a quick build when compared to standard block and stucco.

The complete video collection on insulating, air sealing, and installing windows in a superinsulated sunroom addition in Wayland, MA

Historically, shutters were used for protection and light management. These shutters do both at the same time.

The least expensive window flashing tape is also the most complicated to install. Unless you've done it a bajillion times

The WRB is a BFD when choosing where to put the window

When talking to homeowners or trade contractors about energy efficient construction this question is inevitable. The answer: Tight houses are good because they lower energy bills and increase comfort. But there's a big BUT

Integrating a new drainage plane into an existing one is not as easy as it looks on a phone, but you've got to start somewhere, right?

The easy way to install a peel and stick pan flashing: with tape that stretches in three dimensions