Princeton Engineering and Solar

Solar, Structural, Electrical and Site Engineering

Civil Site


Contact Us

iRooF TM

Instant Roof Framing Analysis

Roof Framing Analysis for Rooftop Solar Installations

Use the online iRooF TM data form to enter field data and locate the proposed array on the roof structure.

Even use your smartphone to submit projects from the field!

iRooF TM gives you INSTANT:

  • Error checking on your data input
  • iRooF TM structural engineering report
  • Professional Engineer's State Seal AND e-Signature on your iRooF TM report
iRooF TM takes care of input data error checking and prepares a detailed structural report for submission to AHJ's across the US and Canada.

iRooF TM INSTANTLY tells you if the roof can support a PV solar installation.
iRooF TM INSTANTLY identifies problems and tells you how to strengthen a weak roof
iRooF TM INSTANTLY specifies minimum racking lag bolt requirements
iRooF TM INSTANTLY creates a complete roof structural analysis report
iRooF TM INSTANTLY adds a Professional Engineer's State Seal and e-Signature on your iRooF TM report

The iRooF TM report can be sealed by our Professional Engineers or your Licensed Design Professional after their appropriate review.

iRooF TM is used by:
  • Solar Contractors
  • Licensed Engineers
  • Registered Architects

iRooF TM analyzes:
  • Standard Framing
  • Truss Framing
iRooF TM 's large, customizable, database of equipment and building materials includes:
  • PV Solar Modules
  • Solar Rack Mounts
  • Roofing Materials
  • Framing Lumber Species
iRooF TM reports include:
  • Your logo and company address
  • Project Key Map
  • Wind / Snow calculations
  • Graphics
  • Finite Element Strutural Analysis

Princeton Engineering also offers electrical and structural plan set review / signing / sealing in 23 states: AZ, CA, CO, CT, DC, DE, FL, HI, IL, MA, MD, MI, MN, NC, NH, NJ, NV, NY, OH, PA, RI, VA and WI.

All engineering and review work is performed by our personnel in our offices in the USA.

Princeton Engineering and Solar

35091 Paxson Road
Round Hill, VA  20141
Tel:  540.313.5317
Fax: 877.455.5641

For more information, contact us at: