Insulation and Weatherizing

If your house is under assult from groundwater, make perforated pipe your first line of defense by Eric Nelson

Get the details right, and a small increase in wall thickness can make a big difference in energy performance by Rick Arnold

New-generation panels mean decade-old notions are no way to choose sheathing. Here's what you need to know. by Sean Groom

by Bruce Harley

If vinyl’s final, you’d best get the details right. A veteran builder shows how to make it water-resistant and attractive. by Mike Guertin

Blown in behind the drywall, high-density cellulose air-seals as it insulates by Fred Lugano

Arguably the best protection against wind and rain penetration, two-piece bronze can be finicky to install by Chris Norris

Whether aluminum, copper, steel or plastic, gutters need good design and proper installation to put roof runoff where it belongs by Andy Engel

Once the water's gone down the downspout, inexpensive plastic pipes carry it away from the house by Byron Papa

by Lawrence E. Prykan

Careful installation of fiberglass batts is likely to have a bigger impact on your life than tight-fitting miters by Bob Kilian

A three-piece threshold provides extra weather protection, especially in exposed locations by Gary M. Katz

by Marc Rosenbaum

by George Nash