Roofing

The Right Tin Snip for the Job

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Left-, right-, and straight-cutting snips with single- and compound-leverage each have their place on a jobsite

California Valley: A Fast Way to Shingle an Open Roof Valley

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A California valley is faster than cutting all of the shingles up a valley. With shingles bedded in cement, it can be exported to other states.

Homebuilding Smackdown: Science vs. Hurricane

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The top reason to study engineering in college: Wall of Wind. Yay Science!

Drip Edge Installation on an Existing Roof

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A look at types of drip edge flashing, how to cut it, and how to retrofit it to an existing roof​

Roof Flashing Guide: From Drip Edge to Valley Flashing

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

Roof Ventilation: 7 Minutes of BS

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This episode of 7 Minutes of BS was the MOST POPULAR EPISODE OF 2017! Enjoy your trip down memory lane. 

 

Flashing a Wood-Framed Chimney w/a Copper Cricket Cap

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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

How to Flash a Masonry Chimney Into a Metal Roof

A silent movie about flashing metal roofing into a brick chimney from UnionCorrugating.

Step Flashing 2 Brick: Its Complicated

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Flashing must extend all the way from the wall to the outside. Oh yeah, and it has to be watertight and eight people have to work on it...

 

How to Flash an Open Valley with W-Type Valley Metal

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

 

Vapor Permeance: 7 Minutes of BS—Building Science w/a Beat

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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