https://www.1point3acres.com/bbs/thread-867262-1-1.html
1. Curtner 43931001
1.1考虑以最少成本加半个或一个浴室,管2-4年就行。
难点:整房slab估计厚4“,sun room又加一层估计总厚7-8”;外墙是厚6‘的大块实砖;sewer cleanout从未打开过,低于地面2“,管子钳口浅没够着,不但锈似乎还有泥灰在周围。
方案:A在左上角加地基,似乎不值得;B利用sun room和左上角房的相邻墙,在sun room里加,但凿开7-8”的水泥地也不容易。可否地上走管,把现有马桶提高一阶连接加出的管道?明管可用床架挡住。
1.2 正规加建:
前面加bay window或地中海前廊贴石,侧面车库前端封闭,这样可停两车。后院左侧树砍掉,太阳房墙/顶拆掉留地面,保留厨房下水维修口。后院加建主人房带浴室,独立浴室,两卧室,family room,hobby及洗衣房(下水接city)。按1346建也是够宽的,但车库要改内置。
1346 3746/8136, 1340-60x135 1418/8099, 2311 cottle 3239/7230 https://www.sccassessor.org/index.php/online-services/property-search/real-property
13 sewage pump/pit: http://www.homedepot.com/s/EVERBILT%2520%2520sewage%2520pump?NCNI-5
how to install: https://www.youtube.com/watch?v=iJSNYVJ0emA
"What about those sanaflo Macerating Pump that you don't need to break up the concrete. are they any good?
+CaptHwdy08 I wouldn't go that route. My personal opinion is that those systems are visually unappealing. Do it right and bust the floor up. You won't regret it. Worst part is the labor. The actual install is a piece of cake."
2. FLo well kit https://www.youtube.com/watch?v=JMrPnyz6rdI#t=2m12s
http://www.homedepot.com/p/24-in-Plastic-Storm-Water-Leaching-System-FWAS24/100377387 Dimension(s): 28-3/4" H. Diameter: 24". Use with 4" Sch. 40 Pipe and 4" DWV Pipe.
city在线申请:首先注册要输入地址(街名一行,另一行选后缀如Ave)和parcel#(可由网上找);登录后选申请permit进入step1后显示地址,要点击地址才进入下一步;然后项目类型只有roof和sub trade,选单项后才显示各项目列表及数量,我是升级配电盘换热水器,故输入了两个1;然后是签字及付款。完后有inspection链接但目前失效。
PG&E承诺3天回复: https://www3.pge.com/ccoweb/#/login https://www.pge.com/ccoweb/customer.portal?_nfpb=true&_nfls=false&_st=&_pageLabel=MyApplications 注册登录后按部就班,要city permit号并上传site plan:https://www.pge.com/includes/docs/pdfs/mybusiness/customerservice/startstop/newconstruction/processguide/processguide.pdf,表心高5-5.5英尺.
2. Laurel
37073 2173/9888, 37047 1080/8099 61x162, 37057 chestnut 2452/6064 https://www.acgov.org/assessor/resources/assessment-information.htm
Front North/right fence: 7'8"(inc 4x4 on right,all like that)Wx(1'lattice+4'10.25" 1x8)H - 8'2"(1'lattice+4'10.25" 1x8) - 8'4"Wx(12.375"'lattice+2'8.75" 1x8) - 8'2.75"Wx(12.375"'lattice+2'8.75" 1x8) - 8'2"Wx23.75"H. 分三种高度ABC,A有3板坏,B有2板及上端2x4坏,C缺网板。
Front South/left fence: 7'11.125"(inc 4x4 on left,all like that)Wx2'H - 8'2"Wx2'H(4x4 post坏) - 8'3.375"Wx2'H,2'网板全缺。
washer agitate repair:https://www.youtube.com/watch?v=Rd-bTgOzhpk#t=2m
single hole bath faucets: https://www.amazon.com/KINGO-HOME-Commercial-Stainless-Lavatory/dp/B07H32LNPV/ref=sr_1_5?s=kitchen-bath&qid=1549082820
https://www.etsy.com/listing/500907235/358-m2-3853-sq-feet4-bed-study-office-2 https://www.etsy.com/listing/707568295/4-bed-study-office-best-selling-house
3. Area plan W48+12=60
1stFL: 56*48, minus Garage 24*24+14*24, hall 8*10, aircon/chiller 40"*8', so total 2688-1028=1660, 38*1660=63KBtu, 3ton; 2ndFL: 46*48=2208, 38*2208=84KBtu, 4ton; total 3868sqft
4. Roof
重要的是气流可以直上由最高处的ridge vent出来,防止冷热交界面可能结露也要留有气道。
有attic的屋顶,roof rafter上钉3/4 OSB并加vapor barrier和5mm覆铝隔热层,再由下往上钉1x4OC16,再水平1x4OC5.5,5.5吋适合上钉shingle;也可斜钉第一层1x4并水平留气隙,其上直接装metal roof。Roof材料在gutter处伸出1.5",在ridge处短1.5-2”作为气隙。安装:https://www.youtube.com/watch?v=NYrGNsoljHI?
没有attic的roof分hot(下图左)和cold(下图右)两类,后者的ceiling joist之间下有隔热层上空为气道,前者由ceiling joist开始是3/4 OSB-整片2吋隔热板-1/2OSB-Reinforced EPDM membrane,用长螺丝穿过隔热板拧到ceiling joist上。cold roof可以用2x6OC16做ceiling joist,下面是石膏板,板上是喷胶隔热层但留3/4~1吋为气流通道,2x6上钉5mm覆铝隔热层后加3/4屋顶板。材料以Modified Bitumen Two-ply Torch Down为好,寿命40年以上:https://flatroofdoc.com/rubber-membrane-repair/ https://www.improvenet.com/r/costs-and-prices/torch-down-roofing
我的设想,上面cold roof的ceiling joist用1呎高的flat roof truss代替,端头truss结构,也是做成四围通风的roof。平顶的好处是可装PV容量最大,装其它空调设备也方便。
flat roof trusses有TotalJoist,East-joistEast-joists等 http://nyreeleather.com/truss-design-calculator/
Hot roof一例:2x8Timber上19mmOSB,vapor barrier,100mm regid insulation,12mmPly用长钉钉在Timber上,这里在insualtion后没有气隙也许会有结露https://www.youtube.com/watch?v=hac7_Lbeg0c Shingle cold roof: https://www.youtube.com/watch?v=nLTola8SxiA Metal cold roof:https://www.youtube.com/watch?v=DpxLi_Rm30s
5.Floor
常见的Crawl space和Slab各有千秋,前者装修较易但要挖土方,可能有虫鼠害;后者只能用隔热板,地埋管道要修的话得凿开水泥层,改进可以是管道周围留空以减小地壳变动的影响。地暖的话砖比木导热快效率高,踢脚暖便于装修但可能烫伤幼童。地面温度可设为80F,水温100-120F。
一楼:地水暖+Slab以避免地板悬空可能的声音和下沉,厅里用石板便于地暖。二楼:也可用地水暖,pex钉在隔热后的sub floor上再加铝箔;或用forced air冷暖系统同时在一楼天花板加AC的出口。
6.Garage size
F150 2019 limited可达209.3-227.9x79.9(带镜), odyssey 203x79(不带镜,覆盖sienna,Lexus LX SUV), Dodge Ran 8'7"(带镜)x19'10". 考虑维修最好用9'x7'门。标准双库23'4"见方。洗衣烘干机需留30Wx36D(带后部风管)。
7. Insualation
Cellulose blow-in价廉物美HD约0.21sqft-R19,每吋R3.5;覆铝板Polyisocyanurate board是7(无铝层为5.8),喷涂polyurethane foam是5.9。
8. Energy
上面涉及了若干节省能源的方案,如用同时产生冷热水的机器、不同的暖空设备如由8KW PV供电的空调、屋顶和地面的保温、平顶最大化PV、煤气无桶热水器与太阳能热水器(http://www.dudadiesel.com/solar.php)绑定,还可考虑Tesla Power Wall,这是13.5KWh可输出5KW的系统,电池目前是$6700外加安装。
https://www.greenbuildingadvisor.com/article/qa-spotlight-will-one-radiant-floor-heat-two-stories 读者反馈中有若干实例。
https://en.wikipedia.org/wiki/Passive_house 被动式房屋特点是气密建筑物外壳(50Pa下每小时换气<0.6次;通风废气回收热量超过80%),超绝缘(外墙U值<0.15,窗户<0.8),先进的三层窗户(注意是97%和90%的差别),被动式太阳能设计(例如窗户上部挡板在在夏季遮阳,冬季通过太阳光采热),采用热交换器通风系统,高效照明和电器。很少需要集中供暖,但有时会安装HVAC系统。PHIUS + 2015标准基于五个原则:气密性,通风,防水,加热和冷却,以及电力负荷。项目必须通过构建指定的鼓风机,通风气流,整体气流和电气负载测试,也必须通过质量保证和质量控制测试。还必须采取其他措施,如低排放材料,可再生能源系统,湿度控制,室外通风,以及节能通风和空间调节设备。平均被动房屋比传统建筑更昂贵,美国为5%至10%,每日度能量(per heating degree day)约1Btu/sqft。https://laney.edu/carpentry/passive-house-ashton/ SF的$4M: https://blog.sfgate.com/ontheblock/2016/05/11/sfs-newest-passive-house-hits-the-noe-market-with-net-zero-impact/ https://www.redfin.com/CA/San-Francisco/2123-Castro-St-94131/home/1274373
9. Home Theater
Golden Trapagon据说是最好的形状即尺度按1.618的方根1.272变化,例如,荧幕墙是10x16',座位后墙是13x21',距离26',我觉得这用于音乐并无道理,用纯律还差不多。
純律即取1、(或)、、(或)、(或)、、(或(或
)、(或)、(或)、(或)、2為數列。印度音乐的22个“什鲁蒂”其实也就等于取数列1、、、、、、、、、、、、、、、、、、、、、、2。https://www.zhihu.com/question/20612595
10. furnace、aircon
GMSS960603BN 60K96% $843 https://www.alpinehomeair.com/viewproduct.cfm?productID=453075203
DUCT SIZE: HTTPS://WWW.CDICURBS.COM/DUCTCAL 1103+1340: ret 14x13/14x15, supp 11"=14x7/12"=14x8, 180sqft>6"
furnace size: 35-40BTU/sqft
美的U型空调仅42db,带安装架等附件,适合上开式Single Hung窗户并允许窗户全开:https://www.amazon.com/Midea-Inverter-Conditioner-Flexibility-Installation/dp/B0867GMW9X 12KBTU 开口22-36x13.75",$469。https://www.youtube.com/watch?v=BBKEV7ox4L0
目前该型号没有制热功能。窗式的效率低于中央空调更低于1拖几。因此,管道式热泵是最优解,Seer 18-20是老式窗式的一倍。
11. Slab vs Crawl space
slab vs crawl space: https://www.youtube.com/watch?v=k5GV5USvT3U 前者耐久没有白蚁等问题,但是水泥层下的水管若坏了需要凿开才能修理。
https://www.youtube.com/watch?v=stOvOxIDRYo https://www.youtube.com/watch?v=hPEtGx2dn_8
地基墙截面呈倒T型,墙厚6脚宽12厚6;slab外圈高至少18地下至少12,slab最薄3.5其下填4"直径2"内的碎石.
我计划做sunken slab,即只有水管下的部分做crawl space,沟由subfloor覆盖后与slab齐平。floor joist围板是2x6其下sill类似,故沟壁上部有7.75"台阶。地基外缘低于地面的四围加R4.5隔热板,地基下铺15mil塑料布。要注意的是靠外墙的水管不能直接在slab下做,可将外墙按常规地基墙做或管道裸露墙外。