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N�R-21-2�05 12�07 IJ�TETG MPLS 7635?11168 P.04 <br /> Ambe l.td., Struc�ural�oofing review <br /> � Ult�ig Project Nc.2a5.0291 <br /> March 18,2005 <br /> Pagt 3 � . <br /> b. The existing concrece bIock foundation should be verified to have or reinforced <br /> as Eollhws: <br /> i. For gcade X sandy soiIs: S"block-�4 vertical bars�40" o.c, or �5 vertical <br /> bars�48" o.c., 12"block-��veztical bars�48" o.t. � <br /> ii. Fo= grade II sandy clay soils: 8" block - #4 vertical bars � 24" o.c. or �5 <br /> �vertical bars�40" o.c., 12"block-#4 vertical bars�4$"o.c. <br /> i�i. For grade IIY �tay soils: 8" blcxk - �!5 vertical bazs� 32" o.c. or #6 vertical <br /> bars �40" o.c. or�7 vertical bars e 48" o.c., 12" biock- #4 vertical bazs C� ' <br /> 32"a.c.or#5 veriicai bars�48"o,c. �� <br /> �v, The xeirifoccement should be grade d0 and placed 3" fxom the ins�de�ace <br /> o�the walt and the gxout shou�d have a mi�nimum compressirre strength of <br /> 2,5D0 psi at 28 days. <br /> �'�Q�ESSiONAL QPI ON <br /> 3. '�he existinng foundation and footings will be structurally adequate ta support th� <br /> proposed addition praviding t�ie sail bearing capacity and footing size(s) are <br /> veri�ied and the foundation walls aze reinforced as recommended above. <br /> t <br /> �ENER.A►L <br /> 4. The informadon, observ�ations, and opuvons Stated in this report are based on an <br /> inspection made by Neil Groon ax►d infarmation provided by Alexander Design <br /> Group. The inspecEion consisted oE a visual walk-through observing exposed <br /> elements and those accessible without the removal of finished matexials. ' <br /> � 5. The observa'tions and opinians expressed in this report were based an ouz <br /> proEessional engineering judgment arid professaonal practic�, as well as the vi6ual <br /> iz�spection. <br /> 6. No other engineering was perforrned or tequested for this project. <br /> 7. All work completed shall be in accordaz►ce with standard industry practices and the � <br /> requirements ot the code. <br />