June 2018 Table of Contents

Features
Avoiding Wet Roofs JLC BUILDER GUIDE Avoiding Wet Roofs

The building science behind common moisture problems in attics and roofs, and a practical guide on how to prevent them. Read more

Insulating Over a Structural Slab Insulating Over a Structural Slab

Skip the sleepers and float the subfloor over the insulation. Read more

Training the Trades
Q&A
Control Joints in Concrete Slabs ... Are They Needed? Control Joints in Concrete Slabs ... Are They Needed?

Cracks in concrete are unavoidable, but contraction and expansion joints can help control where they occur. Read more

On The Job
Retrofitting a New Door in a Brick Foundation Retrofitting a New Door in a Brick Foundation

John Carroll explains how he modified an existing window opening to accommodate a new commercial-grade steel door. Read more

Business
Tracking the Cost of Labor Tracking the Cost of Labor

How one contractor uses Google Drive forms on smartphones to accurately record labor costs, and Excel to process the data. Read more

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