The state of Texas via the Texas Real Estate Commission has created standards of procedures that all home inspectors in Texas are required to follow. The entire SoP can be found here: Standards. Here is one of my sample reports (the names have been changed to protect the innocent).

what we inspect

Briefly, we are looking in five basic areas plus optional items:

I. Structural Systems

Roof Cover and Structure
Doors and Windows – this is an area where many inspectors cut corners. With the ever-changing quality in replacement windows and fly-by-night window companies, energy efficiency is of utmost importance and inspectors must be mindful to stay on top of the spec for new materials being used.  Our inspectors regularly work with Placer Exteriors to ensure we have the tools and knowledge to determine the efficacy of a replacement window. For more information yourself, we strongly suggest you visit their website.
and more!

II. Electrical Systems

Electric Panel
Branch Circuits

III. Heating, Ventilation and Air Cond.

Ducts and Vents

IV. Plumbing Systems

Water Fixtures
Water Heating Equipment
Hydro-Therapy Equipment

V. Appliances

VI. Optional Items

Septic systems
and more