CC LetterDATE:August 31,2023
RE:54 Clement St,Florence,MA 01062,USA
To Whom It May Concern,
As per your request,Exactus Energy has conducted a site assessment of the building at the above
address.
PV solar panels are proposed to be installed on roof areas as shown in the submitted plans.The panels
are clamped to rails which are attached to the roof with a lagged mounting system.The PV system (PV
modules,racking,mounting hardware,etc.)shall be installed according to the manufacturer ’s approved
installation specifications.The Engineer of Record and Exactus Energy claim no responsibility for misuse
or improper installation.
It was found that the roof systems satisfactorily meet the applicable code standards included in the
IBC 2015,IRC 2015,IEBC 2015 and ASCE 7-10 as well as the design criteria shown below:
Design Criteria:
Risk Category =II
Exposure Category =B
Wind speed =117 mph
Ground snow load =40 psf
Roof dead load =9 psf
Solar system dead load =3 psf
Overall,the roof system integrity is adequate to support the PV alteration with no modifications or
reinforcements as required per 2015 IEBC Code Sections 402.3 and 403.3.
This letter was completed in accordance to recognized design standards,professional engineering
experience,and judgement.Prior to installation,the on-site contractor must notify Exactus Energy if there
are any discrepancies,or damages to the members,that was not addressed in the plan set.
If you have any further questions,please do not hesitate to contact me.
Acknowledged by: