Roof valleys are like gutters with a steep pitch, but the stakes are higher for valleys than they are for gutters

Eight articles, videos, and animations that will help you stay alive and uninjured.

Slip-proof roofing underlayment: even when walking on sawdust and water

The premier season of Weatherization Nation was shot in NW Washington DC where we tore off an unfortunate addition to the back of a 70+-year-old brick house and we added a two-story addition which nearly doubled the sliving space.

Contact between dissimilar metals – like copper fittings threaded into steel pipe or copper flashing fastened with steel nails – sets up an electro-chemical reaction that causes corrosion and leads to failure of the “less noble” metal

The Model Remodel Show followed the progress of the 2017 Model Remodel project by Professional Remodeler magazine.

How to break up a section of roof into equal intervals quickly and accurately

The Demonstration House debuted at the 2019 International Builders' Show with five sponsors and ten demo over two days. Here's the highlight reel.

Flashing a wood-framed chimney is like flashing a dormer, except there’s no roof behind it. Without protection, water can leak into the joint and rot your walls to direct uphill water away

Drive a nail in the valley and patch it

Drip edge metal, valley flashing, dormer, chimney, and kickout flashing are types of roof flashing that shed water away from the connections between roofs, walls, chimneys, and other building assemblies

Flashing is the key to a skylight that won't leak water into the roof

Watertight membranes and flashings that lock into roof panels mean a durable roof in extreme weather conditions

A great-looking method for nestling a tube skylight into a tile roof, without shiny exposed metal flashing

Protect that expensive roof during installation

A few minutes up front can save tons of time when you're in the air—and it can eliminate broken ribs, a broken back, or death

A drip edge overlapping strategy that won't catch the eye

Vapor barriers cause a lot more harm than good in many parts of North America. Understanding vapor barriers begins with knowing what it means to be one