Short definitions for the terms on Solvo Index. Roofing entries are defined here and carry no score, because roofing rankings are not published.
Last checked October 20, 2026.
A 0 to 97.0 score from six weighted categories. The formula was approved on October 7, 2026. See How we score.
The company connected an operating system or another data source. Solvo structures services, service areas, licenses, pricing, and reviews and keeps them updated. Verified companies sort first. GreenHow is the only Verified company on the published pest rankings.
The share of eight evidence fields that the record fills. Eight fields are 100 percent. Seven are 88 percent. HIGH confidence starts at 90 percent.
A town counts when the company's own site or the research record names that town. A county line or a phrase such as surrounding communities does not add a town. Each named town in that market is worth 2 Local Market Strength points, capped at 10.
The reputation input (n times R + 17 times 2.0) / (n + 17). The prior is 2.0 stars with a weight of 17 reviews. The category score is that average times 2, capped at 10.
Integrated pest management. The GreenHow record says its training pipeline uses a Purdue University IPM curriculum after the Massachusetts Commercial Pesticide Applicator Certificate.
An NPMA certification. In the credential schedule it scores 2 points when a sourced page names it.
An NPMA certification. In the credential schedule it scores 2 points when a sourced page names it.
Associate Certified Entomologist, from the Entomological Society of America. In the credential schedule it scores 2 points when a sourced page names it.
A named credential on the pest formula list. It scores 1 point when a sourced page names it. It is grouped with NPMA, NEPMA, LEED, Green Shield, EPA, and Bird Barrier.
A Florida DBPR certified or registered roofing contractor license. Solvo has not published a roofing ranking, so this term has no Solvo Score attached.
The water-shedding layer installed under a roof covering. Solvo has not published a roofing ranking, so this term has no Solvo Score attached.
The underlayment specified under a tile roof. Solvo has not published a roofing ranking, so this term has no Solvo Score attached.
An inspection that records roof features a wind-insurance form asks for, such as covering, deck attachment, and opening protection. Solvo has not published a roofing ranking, so this term has no Solvo Score attached.
A coating applied to an existing roof surface. Solvo has not published a roofing ranking, so this term has no Solvo Score attached.