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1646 E Washington Ave - Plan
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515 E Twentieth St
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1646 E Washington Ave - Plan
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Last modified
6/1/2025 11:59:58 AM
Creation date
6/1/2025 11:59:42 AM
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Template:
Plan
Permit Number
20179182
20179187
101114453
Full Address
515 E Twentieth St
Document Relationships
101114453 - Permit
(Permit - Plan)
Path:
\Building\Permits\T\Twentieth St\515 E Twentieth St
20179182 - Permit
(Permit - Plan)
Path:
\Building\Permits\T\Twentieth St\515 E Twentieth St
20179187 - Permit
(Permit - Plan)
Path:
\Building\Permits\T\Twentieth St\515 E Twentieth St
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P a g e 2 o f 2 <br />D. S o l a r P an el A n c h o r a g e <br />1. T h e s o l a r p a n e l s s h a l l b e m o u n t e d in a c c o r d a n c e w i t h t h e m o s t r e c e n t U n i r a c i n s tal l ati on m a n u a l . <br />If d u r i n g s o l a r p an el i n s tal l ati on , t h e r o o f f r a m i n g m e m b e r s a p p e a r u n s t a b l e or d e f l e c t n o n - <br />u n i f orm l y , o u r o f f i c e s h o u l d be n oti fi ed b e f o r e p r o c e e d i n g w i t h t h e i n s tal l ati on . <br />2. T h e m a x i m u m a l l o w a b l e w i t h d r a w a l f o r c e f o r a 5/16? l ag s c r e w is 2 9 8 I bs p er i n c h o f p e n e t r a t i o n a s <br />iden ti fied in t h e N a t i on al D e s i g n S t a n d a r d s ( N D S ) o f t i m b e r c o n s t r u c t i o n s p e c i f i c a t i o n s . B a s e d o n <br />a m i n i m u m p e n e t r a t i o n d e p t h o f 2 4 " , t h e a l l o w a b l e c a p a c i t y p er c o n n e c t i o n i s g r e a t e r t h a n t h e <br />d e s i g n w i t h d r a w a l f o r c e ( d e m a n d ) . C o n s i d e r i n g t h e v a r i a b l e f a c t o r s f o r t h e e x i s t i n g r o o f f r a m i n g <br />a n d i n s tal l ati on t o l e r a n c e s , t h e c o n n e c t i o n u s i n g o n e °/:6" d i a m e t e r lag s c r e w w i t h a m i n i m u m o f <br />2 % " e m b e d m e n t w i l l b e a d e q u a t e a n d will i n c l u d e a s u f f i c i e n t f a c t o r o f s af et y . <br />3. C o n s i d e r i n g t h e w i n d s p e e d , r oo f s l op es , s i z e a n d s p a c i n g o f f r a m i n g m e m b e r s , a n d c o n d i t i o n o f <br />t h e roof, t h e p a n e l s u p p o r t s s h a l l b e p l a c e d n o g r e a t e r t h a n 7 2 " o n c e n t e r . <br />B a s e d o n t h e a b o v e ev a l u at i o n , th i s of fi c e c erti fies t h a t w i th the r a c k i n g a n d m o u n t i n g s p ec i fied, t h e ex is ti n g <br />r oo f s y s t e m wil l a d e q u a t e l y s u p p o r t the addi tion al l o adi n g i m p o s e d by t h e s o l a r s y s tem . T h i s ev al u at i on is i n <br />c o n f o r m a n c e w i th the 2 0 2 2 C al i f or n i a B u i l d i n g C o d e , c u r r en t i n d u s t r y s t an d ar d s , a n d is b a s e d on i n f o r m at i on <br />s u p p l i ed t o u s a t t h e t i m e of th is report. <br />S h o u l d y o u h a v e a n y q u e s t i o n s r e g a r d i n g t h e a b o v e o r if y ou r eq u i r e f u rth er i n f or m a t i on d o n o t h es i tate t o <br />c o n t a c t me. <br />Vf truly yours, <br />7 2 4 3 0 . <br />Scott E. Wyssiig§, PE. <br />Califomia License N <br />Signed 3/2/2023 <br />1646 E Washington <br />Ave03/28/23
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