2522 RUCKER AVE 2018-01-01 MF Import

2. Wood stud walls and beazing paztitions shall not support more than two floors and a roof unless an analysis shows that shrinkage of the wood framing will not have adverse effects on the sttuctuie or any plumbing, electrical or mechanical systems, or other equipment installed therein due to excessive shrinkage or differeadal movements caused by shrinkage. The analysis �hould also s6ow thst the roof drainage system and the forgoing systems or equipment will not be adversely affected or, as an altemative, such systems shall be designed to accommalate the differendal shrinkage or movements. Secdon 2318 3. The design svess of all combustible studs and fire-retardant treated exterior studs shall be reduced to 78 percent of allowable F'c with the maximum F'c not greater than 78 percent of the calculated stress for studs having a slendemess ratio ldd of 33 (which ever is least) for members used in the franting of fire-nesistive walls per Table 7-b, Foomote 19. Note that this applies to assemblies from the UBC and Gypsum Assceiation. The design load per square inch of cross secdonal azea for any wood stud shall not exceed 385 psi for assemblies based on the UL Firo Resistance Diactory. 4. The listing, complete lay-up and assembly of all fi�-resistive assemblies should be shown with the accompanying conswcdnn details. 5. Type III 1-hr buildings require a minimum of one-hour floodceiling assemblies. Details and listings should be provided. Repott No. NER-200 provides firo-resistive assemblies for tt�e TJI's shown for the floor joist system. Note that many acsemblies are specific to t6e type and series of TJI, and not intemhangeabie as such. Secdons 601.1 and 310.2.2 6. Details of the minimum one-hour roof and roof-ceiling assemblies should be provided. 3ection 601.1 7. The two-hour fire-resistive(or other rated),noncombustible exterior wall construcdon shall be continued through the floodceiling assembiies. Details �hould be provided. Section 6043.1 8. All walls shown in plan should be specifically referenced to the appropriate wall construction detail. 9. Wall type GA WP 3370 shown in Detail 7/A7•3 should be roted to have horizontal bracing at mid height per the listing. 10. Detail 7/A7.3 notes that !he sir spac:e between unit pazty walls is to be increased as required to position plumbing stacks within framing at plumbing walls. As this may not be possible to do aher the wall is built, the required space for plumbing should be detailed before such walls are in place. Note also that many plumbing walls are also to