<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Feb 17, 2014 at 8:47 AM, John Salmen <span dir="ltr"><<a href="mailto:terrain@shaw.ca" target="_blank">terrain@shaw.ca</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div link="blue" vlink="purple" lang="EN-CA"><div><p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif"">I’m still convinced the best treatment for exterior wood is no treatment - considering that untreated wood degrades from atmosphere at most about ¼” per century – and the natural grey is nice. </span></p>
</div></div></blockquote><div><br></div><div>That has been my approach to date. But I ask because upon closer inspection I'm finding parts of porches built by me (15-25 years ago) out of Douglas fir which evidence some (serious) rot in places. Not bugs, just disintegration initiated by moisture trapped in cracks. I'm not concerned with surfaces that are exposed to sunlight, but the darker places. <br>
</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div link="blue" vlink="purple" lang="EN-CA"><div><p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif""><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif""><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif"">Next on the list is treatments that oxidize the surface uniformly and ‘naturally’. Off the shelf products include Lifetime Wood Treatment. <br>
</span></p></div></div></blockquote><div>I'll look into this. Thanks. <br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div link="blue" vlink="purple" lang="EN-CA">
<div><p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif""></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif""><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif"">Make sure there is a good air path to all surfaces</span><br>
</p></div></div></blockquote><div><div><br></div>I find that this doesn't work in all situations, desirable and sensible though it sounds. <br><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div link="blue" vlink="purple" lang="EN-CA"><div><p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif"">and good separation from soil (use gravel where possible as a base)</span></p>
</div></div></blockquote><br></div><div class="gmail_quote">Yes. Done.<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div link="blue" vlink="purple" lang="EN-CA"><div><p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif""><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif""><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri","sans-serif""><u></u> <u></u></span></p>
<div style="border-width:1pt medium medium;border-style:solid none none;border-color:rgb(181,196,223) -moz-use-text-color -moz-use-text-color;padding:3pt 0cm 0cm"><p class="MsoNormal"><b><span style="font-size:10pt;font-family:"Tahoma","sans-serif"" lang="EN-US">From:</span></b><span style="font-size:10pt;font-family:"Tahoma","sans-serif"" lang="EN-US"> Greenbuilding [mailto:<a href="mailto:greenbuilding-bounces@lists.bioenergylists.org" target="_blank">greenbuilding-bounces@lists.bioenergylists.org</a>] <b>On Behalf Of </b>Reuben Deumling<br>
<b>Sent:</b> February-17-14 8:04 AM<br><b>To:</b> Greenbuilding<br><b>Subject:</b> [Greenbuilding] protecting outdoor wooden structure from future decay (or at least delaying it)<u></u><u></u></span></p></div><div>
<p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal">I'm in the process of building a large outdoor structure (porch, timber frame bridge, stairs, etc.) out of Douglas fir we milled ourselves. The decking is cedar which I'm not worried about, but the rest I'm realizing could probably benefit from some attempt at prolonging its useful life. I despise pressure treated wood, and am not interested in noxious chemicals. Are there any other methods? <br>
<br>Thanks very much.<u></u><u></u></p></div></div></div></div><br>_______________________________________________<br>
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