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Steve Miller <br /> From: Lisa Rosenow[lisa@putnamprice.com] <br /> SenS: Wednesday, February OB. 2012 9 51 AM <br /> To: Steve Miller <br /> Subject: Re semi-heate.. spaces <br /> Hi Steve, <br /> Designating the building as being heated by no mere than 1 watt/SF puts it squarcl;�in the semi-heated category(1 watt <br /> = 3.42 btuh). If the designer documents the heating capacity t�be less than 3 btu,i/sf,or 0.875 watts/sf,ihen the <br /> building could fall under the unconditioned space category. However per Section 1301 Scope, since the code assumes <br /> that all buildings are at least semi-heated,then only the building official has the autliority to designate a building as <br /> unconditioned and therefora exempt. It cannot be assumed by the desiener tha! by stating in permit docum�nts that <br /> the installed heating capacity will be below the semi-heated limit,that the building is Jierefore automatica�`�deemed <br /> unconditioned. There are situations where a!lowing this may not be appropriate (or questionable),which is why the <br /> Code only allows this through building official approval. <br /> 130t ticope: ConditioneJ buildines or ponions thercof sholl ba cnmtruacd to proeide�hc rcyuircd ihennal pertiirnmnce u(thc <br /> ��arious componenls.iccording lo the reyuirements of Ihis ch:ipler. Unless o�hern�ise appro�cd h�� ihe buildinc �+�licial. ;ill space�shall <br /> b�assunuJ to bc at Icas� scmi•hca�cJ. <br /> P:\Clil'TIO\ti: L Grccnhouscs isolatcd Gam anp conditiuncd spacc anJ nut imcnJcd I nr eccup:inc�. <br /> ?. :\�appruccd h��thc huilding nfficiaL spaccs not assumcJ lu hc al Icast scmi•hcalcd. <br /> i. 1'.nconJilinncJ(iroup 11 occupancr accessurc lu(lroup R ucrupanc}. <br /> -I. I'rolaOiJ cyuipmcnt shcllcn nr c;ibincls uscJ�olri�� fnr pct*un:d��irclr>.xn icc I;aililic.. <br /> Let me know if you have further questions. <br /> Regards, <br /> Lisa Rosenow <br /> Norlhwest Energy Efficiency Council <br /> (206�624-0283. <br /> On 2/6/12 11:09 AM, "Steve Miller" <SMiller�n ci.evrretLwa us>w�ole: <br /> Hi Lisa, <br /> VJould adding a note stating "heating not to exceed 1 watt per sq. ft." qualify a building to 6e considered unconditioned <br /> and therefore not required to meet the semi-heated space em�Alope rules?We are looking at a new 60Q0 sq. ft. <br /> si;rinkleri warehouse. Not sure if 1 watt per sq. (t. would keep a sprinkler system frorn freezing but I guess there is the <br /> uption of using a dry system. <br /> Thanks, Steve <br />