David Stutzman

1 min read

Give Me a Good Spec!

I was reminded recently about a quote from our client that I first heard years ago.

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Floor Slab Flatness and Levelness

Flatness, Levelness, F-Numbers, Straightedge: What do the numbers mean? Recent changes to ACI 117 provide new procedures for straightedge...

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2 min read

Collecting Project Spec Data - What Works?

The July 1st CSI Specifying Practice Group meeting focused on how to collect project data required to write specifications. Group members Louis...

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2 min read

PPD: Deliverable Document and Powerful Design Tool

What do you use to describe your design projects? Will owners, lenders, estimators and others understand the design intent? Traditional methods rely...

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Exterior Window Ratings

What is an AW60 window and how will it perform? The window performance classes and performance grades set by the North American Fenestration Standard...

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1 min read

Interior Spray Foam Insulation

Chapter 26 of the IBC 2006 building code requires foam insulations used inside the building weather barrier to be protected by a thermal barrier. The...

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Air Barriers

What functions must an air barrier perform? It may be more than the obvious. Learn about the types, functions, performance, difficulties, and details...

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Acoustic Ratings for Partitions and Floors

Improving acoustic ratings for partitions and floors depends on increasing sound transmission losses to minimize unwanted air borne and structure...

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