The FAA Releases Part 107 Rules, Expanding Haag’s Ability to...

The FAA Releases Part 107 Rules, Expanding Haag’s Ability to Use Unmanned Aircraft Systems

Tim Marshall Presents at NTWC (April 6) and FERMILAB 2017 (Apr...

Join Tim Marshall for 2 speaking engagements

Haag's Tim Marshall honored to be chosen for TWIRL Research Pr...

Haag's Tim Marshall honored to be chosen for TWIRL Research Project

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Metal Roofs Assessment Combo

Metal Roofs Assessment Combo


Save over $20 when you purchase the Haag Panel & Membrane Gauge and Metal Roofs Damage Assessment Field Guide together.

Save over 25% when you purchase these two items together...

Haag Panel & Membrane Gauge

OTHER GAUGES estimate only uncoated steel panels...  The Haag Panel & Membrane Gauge™ is different.  Using published industry standards, Haag's Research/Testing Division found the measurable differences between coatings in order to bring you a unique new tool that fills a void in the industry.  The Haag Panel & Membrane Gauge™ will help you suggest replacement panels on more roofing types, with more accuracy.  It may be used to estimate* the thickness of both steel and aluminum panels, as well as single-ply membranes (For Steel:  uncoated or coated, galvanized or Galvalume®, with or without additional coating.  For Aluminum:  uncoated and anodized panels. For Single-ply:  all single-ply membranes, excluding modified bitumen, self-adhering, and fleece-backed).  It includes a bonus magnet to help you determine if you are looking at aluminum or steel.  And it's easy to use!   For the full product FAQ, including step-by-step how-to-use instructions and an instructional how-to video, see our regular product posting here.

Metal Roofs Damage Assessment Field Guide

Like Haag’s previous releases, the Metal Roofs Damage Assessment Field Guide was created by Haag engineers to help industry professionals differentiate common metal roofing conditions.  The guide features over 50 pages of full-color, captioned photographs, as well as detailed introductory material and a robust glossary of metal roofing terms.  It’s durable pages are divided into four easy-to-reference sections:  Installation & Design Issues; Manufacturing & Weathering Issues; Hail & Wind Damage; and Mechanical Conditions.

Below are examples of the types of questions answered within the pages of the guide:

  1. What three basic rules are essential to consider when installing a metal roof?
  2. How can hail damage be differentiated from delamination, a mechanical condition?
  3. How can knowledge regarding uplift forces help you differentiate mechanically-caused issues from damage caused by wind?

Please note:  Haag Engineering Co. believes each roof must be inspected individually and assessed on its own merit. The purpose of theMetal Roofs Damage Assessment Field Guide is to provide a basic guide to damage assessment. Not all possible anomalies or causes of damage are represented or discussed in the book. Furthermore, recent court decisions have affected the way hail-caused dents in metal roofing may be categorized.  While the word “damage” is used in this book’s title (and though you will find a detailed explanation of “damage” within its pages), it is important to note that the word “damage” has different meanings and ramifications in the roofing and insurance industries.  While the term “cosmetic damage” may be defined in some insurance policies, we have not used it in the Metal Roofs field guide.  Beyond semantics, in our courses and publications we stress the importance of accurately reporting what natural and/or mechanical forces did (or did not do) to a roof and its surroundings.  Haag Engineering offers classes (such as Haag Certification) which provide additional information on this subject. When effects on metal roofs need further analysis, Haag's Research/Testing Division can offer assistance by analyzing panel samples for dents and possible corrosion.   

*While the Haag Panel & Membrane Gauge™ was designed with the strictest analytical tolerances possible, it is considered an estimating tool due to a small number of panels/membranes which do not conform.