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76 North M e a d ow b rook Drive Scott E. Wyssling, P E A l p i n e , U T 8 4 0 0 4 Jon P. Ward, SE, P E office (201} 874-3483 Gregory T. Elvestad, P E swyssling@wysstingconsulting.com September 16, 2022 C u r r e n t I ns i g h t 2 8 5 2 W . A m i n i W a y S o u t h J o r d a n , U T 8 4 0 9 5 Re: Engineering Services Rishi Residence 2215 Freeman Street, Santa A n a C A 8.400 k W Syste m To W h om It M a y Concern: W e h a v e r e c e i v e d i n f o r m a t i o n r e g a r d i n g s o l a r p a n e l i n s ta ll a t i o n o n t h e ro of o f t h e a b o v e r e f e r e n c e d s tr ucture . O u r e v a l u a t i o n o f t h e s t r u c t u r e is t o v e r i f y t h e e x i s t i n g c a p a c i t y o f t h e r o o f s y s t e m a n d its a b i li ty to s u p p o r t t h e a d d i t i o n a l l o a d s i m p o s e d b y t h e p r o p o s e d s o l a r s y s t e m . A. Site A s s e s s m e n t i n f o r m a t i o n 1. Site visit documentation identifying attic information including size a nd spacing of framing for the existing roof structure. 2. D e s i g n d r a w i n g s o f t h e p r o p o s e d s y s t e m i n c l u d i n g a s i t e p l a n, r o o f p la n a n d c o n n e c t i o n d e t a i l s for t h e s ol a r p a n e l s . T h i s i n f o r m a t i o n w ill b e utilize d f o r a p p r o v a l a n d c o n s t r u c t i o n o f t h e p r o p o s e d s y s t e m . B. D e s cr i p t i o n o f S t ructur e : R o o f F r a m i n g : 2 x 6 dimensional lumber spaced at 24? on center R o o f M a te ria l: Composite A sp h a i t Shingles R o o f S top e : 17 degrees A tt i c A c c e s s : Accessible F o u n d a t i o n : ? Permanent C. L o a d i n g Cri te ria U s e d « D e a d L o a d oe Existing Roofing and framing = 7 psf o New Solar Panels and Racking =3 psf o T O T A L = 10 PSF « L i v e L o a d = 20 psf (reducible) ? 0 p s f at locations of solar panels e G r o u n d S n o w L o a d = 0 psf « Wi nd L o a d based on A S C E 7-16 o Ultimate Wind S p e e d = 95 mph (based on Risk C a te gory II) o Exposure Category C A n a l y s i s p e r f o r m e d o f t h e e x i s t i n g r o o f s t r u c t u r e utilizing t h e a b o v e l o a d i n g crite ria i s in a c c o r d a n c e w i th t h e 2 0 7 9 C a l i f o r n i a B u i l d i n g C o d e , i n c l u d i n g p r o v i s i o n s a l l o w i n g e x i s t i n g s t r u c t u r e s to n o t r e q u i r e s t r e n g t h e n i n g i f the n e w l o a d s d o n o t e x c e e d e x i s t i n g d e s i g n l o a d s b y 1 0 5 % f o r g r a v i t y e l e m e n t s a n d 1 1 0 % f o r s e i s m i c e l e m e n t s . T h i s a n a l y s i s i n d i c a t e s t h a t t h e e x i s t i n g f r a m i n g w i ll s u p p o r t the a d d i t i o n a l p a n e l l o a d i n g w i t h o u t d a m a g e , i f i n s t a l l e d cor re ctl y. 2215 N Freeman St 12/27/22