and ready to install plywood. cdx or structural one is recommended min mun half inch thick plywood. add them in install the plywood in segments of 4 feet long minimum segments it's not worthwhile for garage or basement walls to add plywood in shorter segments. longer is better, of course. you don't want to go over board and for example, cover one entire wall with plywood and leave the others bear. you are making it worse. the best thing to do is to distribute the installation of plywood as evenly as possible around the perimeter walls much the simpson book shows a picture of that. >> page 13 and 14.

>> those typical for most san francisco houses especially because if you have 25 foot wide lot and a garage and entry door there is not much to do with the front elevation. may be the 50 cross wall you can add plywood. down the long walls on the longitudinal sides really not necessary to completely cover the walls but add segments. try to distribute the plywood throughout the entire area. there are so many nails on the market. i strongly recommend common nails only. not box nails and not sinkers. and make sure your nails are 3 inches long. you should use for nailing to plywood, 10 d, 10 penny nails. those are the best but if you wanted to use 8 d, 8 penny nails slightly smaller diameter easier to hammer the nail in that's

okay, too. make sure they are 3 inches long. if they are galvanized that's best but not essential. nail down every edge of every sheet of plywood and install the nails 4-6 inches on center. in order to do the nailing you most likely need to add blocking at places where the edge of the plywood doesn't coincide with the stud or it's a horizontal joint so you need to add a horizontal block in. make sure to install vent holes much the recommendation is 2 inch diameter vent holes one near the bottom and stop of each stud space. when you buy plywood you get 4 by 8 foot sheets. when you install the plywood most install it vertically if you want to install is

horizontally that's okay just make sure you do them all the same. start at the sill and go to the top of the wall. if you are putting your plywood sheets together make sure that there's no gap there is no horizontal gap between the sheets. here's the sill and the anchor bolt we put in. so your plywood will be up against, flush with the stud and the sill. so you nail the plywood to the sill. and you nail the plywood to every stud. that's simple enough; right . at the top of the wall, you have th a double top plate. you should run your plywood all the way up and nail it to this upper top plate. that's ideal. all right. with no gaps no horizontal gaps. all the way from the sill up to

the top. >> page 7 shows that clearly. it gives you a post, preretrofit condition and post retrofit condition with the plywood where they nail it up to the underside of the floor joift. >> if you are lucky enough to have a house where your garage level, floor level is higher, quite tall, most likely one sheet of plywood will not reach and you need to -- you will have a horizontal joint between a pliwood sheet you need to put a block in between the studs in order to nail the plywood sheets together to the blocking. all right. now look at this. this is the top of the wall. all right. there's at double top lay. it's hard to see, i'm sorry but this is the floor sheeting

diagonal sheeting the floor joi st and this is a piece of block like the rim blocking but this is a vertical block. hopefully when the house is built the floor sheathing was nailed to this block. now to finish the load pass we will look at where this piece of block meets the top plate. what you want to do is you want to install, because we don't know what was done better to be safe. you want to install metal clips. this is not advertising but this is an industry standard this is a simpson a 35 it's a big one. this in the picture is an a 34 it's a little smaller. you want to put a 35 or a 34,

nail it to the blocking and nail it to the top of the double top plate. put one of these this is conservative at 12 inches on center or 1 clip at every block. all right. at least one clip for every block or 12 inches on center. here's the condition where the mud sill is wider than the studs. okay. so you nailed down new sills sill pieces to the top of the wide mud sill and you have installed an anchor bolt through both sills. when you install the plywood it's nailed to the stud and nailed to the edge of the new sill. tell not be nailed to the edge of the mud sill because the mud

sill is too wide. the plywood is nailed to the sill there and the studs. i wanted to clarify that. you will run to electric and plumbing lines you want to unclip those, you may need to hire a plumber if it's difficult but most times you can take the clips off, pull out the pipes a bit and get your plywood under that. don't be put off because you have electrical and plumbing. don't think it's going to be easy and realize you have pipes in the way. it's something you will encounter but not something that would put me off it's simple as long as you reclip them after to the plywood after you finish the work. >> on a home stretch much the last things you want to think about is nonstructural items

such as chimneys you might want to anchor it or strap it and reenforce your roof so if it falls it doesn't cave in the roof. water heaters, some people in chance houses have fancy chandeliers. if you have heavy pieces of furniture or appliance. put straps on your water heater at the upper and lower third. anchor the straps to the studs. don't just screw the straps into board make sure you go into a stud u. who can see what's wrong with this picture? it's missing the base. need to elevate your water heater on a metal stand raise it 18 inches off the ground. you can go to a hardware store

and they will sell you sheet metal stands. look at your hand outs for places to go to. go to 72 hour. org. we hope this was helpful to you. we appreciate it if you fill out the information form. >> now for questions. >> you are talking about the cripple walls below the first floor. my first floor is kitchen living room area below grade. i want to fix the earthquake problem but i have to put electrical lines and plumbing lines all in the wall. drill the holes for the sill. does that mean the inspection

and then the earthquake guy will come to look behind the sheeting. >> your's is more complicated. if you are going to open the walls and have plumbing in the walls you need a permit as well as a building permit. they will need to inspect that prior to the building inspector before you cover up you have an inspection then by the building inspection prior to covering up the walls. >> you could put up the plywood, drill some holes and the inspector could do. >> that's okay. >> i have done that before myself. that's fine much the holes are vent holes for air so you don't get air trapd and cause mildew.

that would be something we have done before a small 2 inch hole to let the inspector see the bolts are installed. the building inspector will look at bolts before the plywood is put on the walls. you can have 2 or 3 inspections. they don't charge extra. >> they don't. as well as that you mentioned about if you did a full seismic upgrade and that was on the records. the same applies if you put in anchor bolts and sheer wall. records will show for your building with the department that you have done that work. if you went to silent property or even the insurance companies now might be interested to hear that may be tell bring your policy down a bit. i have heard that in the past. i'm not sure i haven't looked

into that i heard that you may have a lower -- >> okay. joof like to comment about the water issues storing water. you said that it's from the tap you should purify it. 25 percent of store bought water is from a tap. so just because you have it from a store doesn't mean that you don't need to purifiy it. could be risky to assume. >> i think that if you buy the water from a store. i'm talking about commercial go to the market and it's in the sealed container that has never been opened and has a date. as long as you stay within the date you should have no worries. if that water is contaminated that's a federal issue. >> 25 percent of the water that

you buy in the store is tap water. >> okay. it has a date on it. >> it doesn't matter. purify everything. definitely if you store your own tap water which means you will put it in a jar i don't know how you would store it. >> containers from a camping store. >> okay. 5 gallon containers. >> okay you need to make sure how do you determine the date then for that? how long do you know you can store it before you purifiy t. i believe you need to rotate it every 6 months? i'm not an expert in that my recommendation is store bought water. >> i follow these things i'm certified in --

>> you are more than an expert than i am. thanks for the information. >> thank you very much. >> really. no more questions? >> thank you. >> actually i have several questions and one is that i notice on your presentation you have 5 eighth 3 eighth anchor bolts and 3 quarter of an inch anchor bolts. does this apply for the whole city? >> not aware of >> are you talking about immediately after 1989? the work that was done? i'm not familiar with what rules may have been imposed following the marina earthquake.

it could have been they set up special provisions on an emergency basis. in general if you do a voluntary strengthening. if your house is not damaged, and you wanted to do strengthening 5 eighth's inch or 3 quarters should be fine. >> anything you do is better than the existing condition. may be for the marina may be you are referring to the required fixes for damaged houses, which we are not talking about that. we are talking about today we are talking about somebody who wants to do voluntary strengthening to a house. >> california building code states 5 eighth inch minimum. you don't go smaller but if you want to go to 3 quarter, that's fine much the california building code says you must have 5 eighth minimum and 7 ifrn

embedment into the foundation. >> that was the only reason i asked. i thought i remembered the marina districtly quarter of an inch and can 12 inches long. >> in sheer wall system sometimes an engineer will call out for a decker bolt and may be as close as 12 inches together. the simple strengthening they are 4 feet apart. in a sheer wall that engineer could call for the bolts to be spaced 12 or 9 inches. >> if you visited us tomorrow with a permit for voluntary strengthening it wouldn't matter if you were in the marina or

another neighborhood in the city. >> you always mentioned that you could possibly use if you want the plywood to be no less than 4 feet apart. >> no, 4 feet long. >> minimum. you mentioned it's all right to put the plywood horizontally? as long as you block the edges. >> you have to apply blocking. >> yes. >> that's it's recommended that you run the plywood the entire 8 foot length from mud sill to top plate then you have on top of sheer wall. >> yeah you with do the other way. most people's homes an 8 foot sheet of plywood will be just the right length to go from the sill to the top plate. may be that's why they sell plywood in 4 by 8 sheets.

>> i know they cell in 10 foot. >> yeah a little more expensive. you could turn it horizontally if you wanted but you have to block all the edges. >> is it recommended you put hold downs in areas before the sheer wall. >> hold downs are recommended but that's not part of our scope. we figure for most homeowners voluntary strengthen tie downs is more than they understand. as long as you put in the anchor bolts and add plywood you have done so much to strengthen your house. >> my last question is the blocking that's directly on to the mud sill for the over sizes does that add structural value to the wall studs for an earthquake with or without the anchoring? >> no. >> no, it doesn't.

>> no it's really to get the connection between the mud sill and the plywood. because you can't get it because you got a wider mud sill your plywood will not go to the edge and catch the stud. it's easier to do it like we said. you need to nail your blocking to the bottom of the mud sill within the stud width for 10 d nails >> i ask the blocking on the mud sill when an earthquake hits depending on which direction is rolls the rolls in one direction or the other. the studs only held in with 10 d or 410 d nails on either side that caused an uplifting of the sill from the mud sill. the anchoring only in the mud

sill and nothing holding the [inaudible] in place. whether it adds value to it at all you say, no. >> no. if you don't put it in your system does not work. >> your studs are nailed to the mud sill before you start. >> thank you. >> somebody in the back, any questions? >> no. >> what time is it. >> it's about 11:15. we are just at the end. >> all right i guess that's it. thank you very much, thank you for coming. check your schedules for what's coming up next. thank you.

when a resident of san francisco is looking for health care, you look in your neighborhood first. what is closest to you? if you come to a neighborhood health center or a clinic, you then have access it a system of care in the community health network. we are a system of care that was probably based on the family practice model, but it was really clear that there are special populations with

special needs. the cole street clinic is a youth clinic in the heart of the haight ashbury and they target youth. tom woodell takes care of many of the central city residents and they have great expertise in providing services for many of the homeless. potrero hill and southeast health centers are health centers in those particular communities that are family health centers, so they provide health care to patients across the age span. . >> many of our clients are working poor. they pay their taxes. they may run into a rough patch now and then and what we're able to provide is a bridge towards getting them back on their feet. the center averages about 14,000 visits a year in the health clinic alone. one of the areas that we

specialize in is family medicine, but the additional focus of that is is to provide care to women and children. women find out they're pregnant, we talk to them about the importance of getting good prenatal care which takes many visits. we initially will see them for their full physical to determine their base line health, and then enroll them in prenatal care which occurs over the next 9 months. group prenatal care is designed to give women the opportunity to bond during their pregnancy with other women that have similar due dates. our doctors here are family doctors. they are able to help these women deliver their babies at the hospital, at general hospital. we also have the wic program, which is a program that provides food vouchers for our families after they have their children, up to age 5 they are able to receive food vouchers to get milk and cereal for

their children. >> it's for the city, not only our clinic, but the city. we have all our children in san francisco should have insurance now because if they are low income enough, they get medical. if they actually have a little more assets, a little more income, they can get happy family. we do have family who come outside of our neighborhood to come on our clinic. one thing i learn from our clients, no matter how old they are, no matter how little english they know, they know how to get to chinatown, meaning they know how to get to our clinic. 85 percent of our staff is bilingual because we are serving many monolingual chinese patients. they can be child care

providers so our clients can go out and work. >> we found more and more women of child bearing age come down with cancer and they have kids and the kids were having a horrible time and parents were having a horrible time. how do parents tell their kids they may not be here? what we do is provide a place and the material and support and then they figure out their own truth, what it means to them. i see the behavior change in front of my eyes. maybe they have never been able to go out of boundaries, their lives have been so rigid to sort of expressing that makes tremendous changes. because we did what we did, it is now sort of a nationwide model. >> i think you would be surprised if you come to these clinics. many of them i think would be your neighbors if you knew that. often times we just don't discuss that. we treat husband and wife and they bring in their kids or we treat the grandparents and then

the next generation. there are people who come in who need treatment for their heart disease or for their diabetes or their high blood pressure or their cholesterol or their hepatitis b. we actually provide group medical visits and group education classes and meeting people who have similar chronic illnesses as you do really helps you understand that you are not alone in dealing with this. and it validates the experiences that you have and so you learn from each other. >> i think it's very important to try to be in tune with the needs of the community and a lot of our patients have -- a lot of our patients are actually immigrants who have a lot of competing priorities, family issues, child care issues, maybe not being able to find work or finding work and not being insured and health care sometimes isn't the top priority for them.

we need to understand that so that we can help them take care of themselves physically and emotionally to deal with all these other things. they also have to be working through with people living longer and living with more chronic conditions i think we're going to see more patients coming through. >> starting next year, every day 10,000 people will hit the age of 60 until 2020. . >> the needs of the patients that we see at kerr senior center often have to do with the consequences of long standing substance abuse and mental illness, linked to their chronic diseases. heart failure, hypertension, diabetes, cancer, stroke, those kinds of chronic illnesses. when you get them in your 30's and 40's and you have them into

your aging process, you are not going to have a comfortable old age. you are also seeing in terms of epidemics, an increase in alzheimer's and it is going to increase as the population increases. there are quite a few seniors who have mental health problems but they are also, the majority of seniors, who are hard-working, who had minimum wage jobs their whole lives, who paid social security. think about living on $889 a month in the city of san francisco needing to buy medication, one meal a day, hopefully, and health care. if we could provide health care early on we might prevent (inaudible) and people would be less likely to end up in the emergency room with a drastic outcome. we could actually provide prevention and health care to

people who had no other way of getting health care, those without insurance, it might be more cost effecti >> the san francisco ethnic dance festival is one of the jewels on san francisco sculptural crowns. this is in its 32nd year of showcasing the celebrated dance troupes. this year will be one of the past with four new works representing kondo, afghanistan, china, mexico. -- congo, afghanistan, china, mexico. more than