Haag's 4.09 Shingle Gauge™ and 1.12 Shingle Gauge™ have verysimilar names. They also look a lot alike. Both have a basic shapesimilar to a piano tuning fork, each with a central opening whereusers slide an asphalt composition shingle to estimate itsthickness. However, just as the basic two-prong shape of the gaugesdoes not indicate that they can be used to tune pianos, the similarshape of the two gauges does not mean that they measure the sameproducts. If you have ever heard of the Haag ShingleGauges™ referred to as “interchangeable” or as two sizes (one''long,” one ''short”) of the same tool, it is important to knowthat the two Shingle Gauges are completely different and thatONE SHOULD NEVER BE USED IN PLACE OF THEOTHER.

First came the 4.09

Haag's IAS-accredited Research/Testing lab has been monitoringthe shingle manufacturing industry for over 20 years. We saw a needfor a tool which could estimate the thickness of asphaltcomposition shingles and link that thickness to a warranty level.We aimed to support industry pros with measurements in the field sothey can better prepare their roof repair and replacementestimates.