Reference Books & Tools
Created by Haag engineers, known throughout the industry not only as scientifically rigorous practitioners but also as outstanding communicators, Haag’s reference books and tools serve as handy resources in the field. Our line of reference books includes the Composition, Tile, and Wood Field Guides, as well as our new Built-Up Roofing Field Guide. Haag’s tools include our popular Shingle Gauges, which estimate a shingle’s warranty, and our Pitch Gauge and Inclinometer, which estimate a roof’s pitch.
Haag Shingle Gauge Combo
Use Haag's Shingle Gauges to suggest comparable replacement shingles during damage assessment!
Crane Accidents: Causes & Trends
A comprehensive analysis of over 500 crane accident causes and trends, 1983-2013. By Jim Wiethorn, P.E.
Metal Roofs Damage Assessment Field Guide
*SEE BELOW ~ AVAILABLE BY PRE-ORDER ONLY* Our newest publication is a handy, dependable reference guide featuring metal roofing. Learn how to differentiate functional damage from issues related to manufacture, installation, and weathering.
1/12 Shingle Gauge™ (3-Tab Only)
The 1/12 Shingle Gauge™ estimates the warranty levels of 3-Tab fiberglass asphalt shingles installed after Jan. 2011.
4/09 Shingle Gauge™
The 4/09 Shingle Gauge™ measures the thickness of an asphalt composition shingle, and based on analyses made by Haag, correlates that thickness to a warranty level.
Composition Roofs Damage Assessment Field Guide
Our most popular book, this guide illustrates types of damage found on composition roofs--a great on-the-roof reference guide!