<div dir="ltr">Great stuff. Thank you all for your suggestions and experiences. 3/4" is very doable, In one particular area it is close, but I can make it work. 3" long drywall screws also seems like a great idea. I have a bunch of those left over from twenty years ago, before I ever met Robertson much less Torx screws. <br></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Dec 3, 2016 at 12:14 PM, Jeff Martin <span dir="ltr"><<a href="mailto:jeff@open2learn.ca" target="_blank">jeff@open2learn.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div bgcolor="#FFFFFF" text="#000000">
    <p>We've been using nominal 1 x 3s (3/4" x 2 5/8"). I agree with
      Clarke that 3/8" seems likely to be too thin. I don't think that
      3/8" strips would hold the screws reliably or be stiff enough,
      although ripped strips of 3/8" plywood might.</p>
    <p>If trying to gain 3/8" of space is that crucial, I think the
      better solution for you, Reuben, is to temporarily hold the foam
      in place with the washered nails, then install your drywall
      directly over the foam, using 3" drywall screws. That way you'll
      gain the full 3/4" you would have lost using furring strips
      between the foam and the drywall. I think the main challenge that
      you'll face is hitting your studs reliably, when you're driving
      the 3" screws through the foam, especially at inside corners.</p><span class="HOEnZb"><font color="#888888">
    <p>Jeff<br>
    </p></font></span><div><div class="h5">
    <div class="m_-3115563393424685053moz-cite-prefix">On 12/1/2016 3:08 PM, Clarke Olsen
      wrote:<br>
    </div>
    <blockquote type="cite">
      
      Thew strips I was thinking of were thicker, my experience was with
      2x4s; 3/8" is pretty thin, not much to grab. <br>
      <div>
        <span class="m_-3115563393424685053Apple-style-span" style="border-collapse:separate;color:rgb(0,0,0);font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span class="m_-3115563393424685053Apple-style-span" style="border-collapse:separate;color:rgb(0,0,0);font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
            <div style="word-wrap:break-word"><span class="m_-3115563393424685053Apple-style-span" style="border-collapse:separate;color:rgb(0,0,0);font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                <div style="word-wrap:break-word"><span class="m_-3115563393424685053Apple-style-span" style="border-collapse:separate;color:rgb(0,0,0);font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                    <div style="word-wrap:break-word"><span class="m_-3115563393424685053Apple-style-span" style="border-collapse:separate;color:rgb(0,0,0);font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                        <div style="word-wrap:break-word"><span class="m_-3115563393424685053Apple-style-span" style="border-collapse:separate;color:rgb(0,0,0);font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                            <div style="word-wrap:break-word"><span class="m_-3115563393424685053Apple-style-span" style="border-collapse:separate;color:rgb(0,0,0);font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                                <div style="word-wrap:break-word"><span class="m_-3115563393424685053Apple-style-span" style="border-collapse:separate;color:rgb(0,0,0);font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                                    <div style="word-wrap:break-word">Clarke <br>
                                      <br>
                                      <br>
                                    </div>
                                  </span></div>
                              </span></div>
                          </span></div>
                      </span></div>
                  </span></div>
              </span></div>
          </span></span></div>
      <div>
        <div>On Dec 1, 2016, at 1:04 PM, Reuben Deumling <<a href="mailto:9watts@gmail.com" target="_blank">9watts@gmail.com</a>>
          wrote:</div>
        <br class="m_-3115563393424685053Apple-interchange-newline">
        <blockquote type="cite">
          <div dir="ltr">
            <div>I didn't have any particular glue in mind, just know
              that gluing sheet rock is done. About the furring strips,
              do the nails you're talking about go all the way through?
              And if so, couldn't one skip the fasteners holding the
              sheet itself and simply secure with one set through the
              furring strips? And since (in my case) the whole point
              here is to minimize wall thickness overall, how thin of a
              furring strip could one hope to get away with?
              3/8"x1-1/2"? <br>
              I realize we're trying to not split the strips with the
              drywall screws, or screws holding the assembly to the
              studs below.... <br>
              <br>
            </div>
            Thanks for all your suggestions. Delighted this list does
            still exist even if we've gotten kind of quiet. <br>
          </div>
          <div class="gmail_extra"><br>
            <div class="gmail_quote">On Thu, Dec 1, 2016 at 8:53 AM,
              Clarke Olsen <span dir="ltr"><<a href="mailto:colsen@fairpoint.net" target="_blank">colsen@fairpoint.net</a>></span>
              wrote:<br>
              <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
                <div style="word-wrap:break-word">Quick hint: I found
                  that a nail gun is essential when attaching furring
                  strips over foam. When you drive them with a hammer,
                  <div>that 2nd, 3rd (4th?) blow will have crushed the
                    foam. The nail gun hits it so decisively, the foam
                    says firm. <br>
                    <div>
                      <span class="m_-3115563393424685053m_7197618825944390117Apple-style-span" style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span class="m_-3115563393424685053m_7197618825944390117Apple-style-span" style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                          <div style="word-wrap:break-word"><span class="m_-3115563393424685053m_7197618825944390117Apple-style-span" style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                              <div style="word-wrap:break-word"><span class="m_-3115563393424685053m_7197618825944390117Apple-style-span" style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                                  <div style="word-wrap:break-word"><span class="m_-3115563393424685053m_7197618825944390117Apple-style-span" style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                                      <div style="word-wrap:break-word"><span class="m_-3115563393424685053m_7197618825944390117Apple-style-span" style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                                          <div style="word-wrap:break-word"><span class="m_-3115563393424685053m_7197618825944390117Apple-style-span" style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                                              <div style="word-wrap:break-word"><span class="m_-3115563393424685053m_7197618825944390117Apple-style-span" style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
                                                  <div style="word-wrap:break-word">Clarke
                                                    Olsen<br>
                                                    <a href="http://clarkeolsendesign.com/" target="_blank">clarkeolsendesign.com</a><br>
                                                    373 route 203<br>
                                                    Spencertown, NY
                                                    12165 <br>
                                                    USA<br>
                                                    <a href="tel:%28518%29%20392-4640" value="+15183924640" target="_blank">518-392-4640</a><br>
                                                    <a href="mailto:colsen@taconic.net" target="_blank">colsen@taconic.net</a><br>
                                                    <br>
                                                    <br>
                                                    <br>
                                                  </div>
                                                </span></div>
                                            </span></div>
                                        </span></div>
                                    </span></div>
                                </span></div>
                            </span></div>
                        </span></span>
                    </div>
                    <br>
                    <div><span>
                        <div>On Nov 30, 2016, at 9:59 PM, Jeff Martin
                          <<a href="mailto:jeff@open2learn.ca" target="_blank">jeff@open2learn.ca</a>>
                          wrote:</div>
                      </span></div>
                    <br>
                  </div>
                </div>
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