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<body><div>On Tue, 08 Jul 2014 20:47:19 -0400, Reuben Deumling <9watts@gmail.com> wrote:</div><div><br></div><div>>To my chagrin, the temperature in the now much better insulated portion is no different than in the equivalently oriented part of the upstairs. </div><div>> Both are only about 7 degrees cooler than the outside</div><div><br></div><div>The improved thermal insulation that will hopefully keep the occupants toasty in winter doesn't know that you don't want it to keep heat in the house in summer. </div><div><br></div><div>Stoopit insulation. Eh ?</div><div><br></div><div>In addition to the 30 degC-plus outdoor temps in summer, there are still the internal heat gains due to occupancy and solar gains from the S/W-facing glazing which are no doubt appreciated in winter but it's not the job of the insulation to get rid of that same heat in summer when it's not welcome.</div><div><br></div><div>That job falls to stuff like shading devices , ventilation strategies, thermal mass etc. ... and I would not under-estimate the role that significant amounts thermal mass can play in helping to provide large temperature differentials between inside and outside.</div><div><br></div><div>I'd go so far as to venture that it can be the difference between needing mechanical cooling vs. passive cooling to keep the occupants comfortably cool during hot weather.</div><br><br><div id="M2Signature"><div>-- </div><div>=== * ===<br>Rob Tom . . . T60BOM<br>Kanata, Ontario, Canada<br><br>A r c h i L o g i c at Y a h o o dot C A<br>(manually winnow the chaff from my edress if you hit "reply")</div></div></body></html>