Beam Rot - Advice & Suggestions - Wharram Builders and Friends2024-03-29T05:30:28Zhttps://wharrambuilders.ning.com/forum/topics/beam-rot-advice-suggestions?feed=yes&xn_auth=noAlways always always give the…tag:wharrambuilders.ning.com,2016-05-04:2195841:Comment:1420602016-05-04T17:59:09.993ZLee Dilkeshttps://wharrambuilders.ning.com/profile/LeeDilkes
<p>Always always always give the timber a good soaking with an epoxy 2 pack anti fungicide and then at least one layer of 6 0z cloth which is then filled and faired with thickened epoxy and if you want to drill holes in any timber make sure you oversize them by at least 20% then fill with epoxy thickened with colloidal silica THEN drill the hole through that.</p>
<p>No fresh water can get in then so hopefully no dry rot.<br/>Good luck with the repair.</p>
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<p>Always always always give the timber a good soaking with an epoxy 2 pack anti fungicide and then at least one layer of 6 0z cloth which is then filled and faired with thickened epoxy and if you want to drill holes in any timber make sure you oversize them by at least 20% then fill with epoxy thickened with colloidal silica THEN drill the hole through that.</p>
<p>No fresh water can get in then so hopefully no dry rot.<br/>Good luck with the repair.</p>
<p></p> The beams were originally epo…tag:wharrambuilders.ning.com,2016-04-23:2195841:Comment:1418892016-04-23T20:40:48.413ZIan Bamseyhttps://wharrambuilders.ning.com/profile/IanBamsey
<p>The beams were originally epoxy coated. I did not apply any more when I first restoring them, I'm sure I trapped in some water and some bad wood. I stripped them back to the epoxy using <a href="http://www.decoratingwarehouse.co.uk/buy/decorators-tools/paint-removal-systems/peelaway-7---paint-removal-system/821?gclid=CjwKEAjwuuy4BRCvs43g9fX9mz4SJACiYydP8Xwmljdu9myGNcTK6W72COJtxM-anUGo4j0IkTkV-hoCXnvw_wcB" target="_blank">peel away</a> paint remover, then repaired some wood and repainted with…</p>
<p>The beams were originally epoxy coated. I did not apply any more when I first restoring them, I'm sure I trapped in some water and some bad wood. I stripped them back to the epoxy using <a href="http://www.decoratingwarehouse.co.uk/buy/decorators-tools/paint-removal-systems/peelaway-7---paint-removal-system/821?gclid=CjwKEAjwuuy4BRCvs43g9fX9mz4SJACiYydP8Xwmljdu9myGNcTK6W72COJtxM-anUGo4j0IkTkV-hoCXnvw_wcB" target="_blank">peel away</a> paint remover, then repaired some wood and repainted with 2-pack epoxy paints (Jotun Penguard HP then Flextop - I think these are great paints)</p>
<p>It's worth remembering these beams are 35 years old. So whatever problems I've had, they have been very good. In the recent work to replace sections with new wood, I have applied a generous coat of epoxy and today I put on the first coat of epoxy paint.</p>
<p>I think it is worth the effort of applying one or two epoxy coats before painting. If I were making new beams, I would first apply wood penetrating epoxy. In particular I think extra care is needed at the beam (grain) ends.</p>
<p>Good luck with your work. Today, for the first time, I felt like I was close to getting back in the water! </p> The beams were originally epo…tag:wharrambuilders.ning.com,2016-04-23:2195841:Comment:1417892016-04-23T20:32:24.965ZIan Bamseyhttps://wharrambuilders.ning.com/profile/IanBamsey
<p>The beams were originally epoxy coated. I did not apply any more when I first restoring them, I'm sure I trapped in some water and some bad wood. I stripped them back to the epoxy using <a href="http://www.decoratingwarehouse.co.uk/buy/decorators-tools/paint-removal-systems/peelaway-7---paint-removal-system/821?gclid=CjwKEAjwuuy4BRCvs43g9fX9mz4SJACiYydP8Xwmljdu9myGNcTK6W72COJtxM-anUGo4j0IkTkV-hoCXnvw_wcB" target="_blank">peel away</a> paint remover, then repaired some wood and repainted with…</p>
<p>The beams were originally epoxy coated. I did not apply any more when I first restoring them, I'm sure I trapped in some water and some bad wood. I stripped them back to the epoxy using <a href="http://www.decoratingwarehouse.co.uk/buy/decorators-tools/paint-removal-systems/peelaway-7---paint-removal-system/821?gclid=CjwKEAjwuuy4BRCvs43g9fX9mz4SJACiYydP8Xwmljdu9myGNcTK6W72COJtxM-anUGo4j0IkTkV-hoCXnvw_wcB" target="_blank">peel away</a> paint remover, then repaired some wood and repainted with 2-pack epoxy paints (Jotun Penguard HP then Flextop - I think these are great paints)</p>
<p>It's worth remembering these beams are 35 years old. So whatever problems I've had, they have been very good. In the recent work to replace sections with new wood, I have applied a generous coat of epoxy and today I put on the first coat of epoxy paint.</p>
<p>I think it is worth the effort of applying one or two epoxy coats before painting. If I were making new beams, I would first apply wood penetrating epoxy. In particular I think extra care is needed at the beam (grain) ends.</p>
<p>Good luck with your work. Today, for the first time, I felt like I was close to getting back in the water! </p> We put rubber between the bea…tag:wharrambuilders.ning.com,2016-04-22:2195841:Comment:1416892016-04-22T14:41:56.554ZRobert Sheridanhttps://wharrambuilders.ning.com/profile/RobertSheridan
<p>We put rubber between the beam and the platform and I am hoping that that has reduce the risk of rot.</p>
<p>We put rubber between the beam and the platform and I am hoping that that has reduce the risk of rot.</p> Yes, this is a very good poin…tag:wharrambuilders.ning.com,2016-04-11:2195841:Comment:1415912016-04-11T08:20:22.810ZIan Bamseyhttps://wharrambuilders.ning.com/profile/IanBamsey
<p>Yes, this is a very good point and I think you're right. As you can see in the initial photo, the rot was in a line directly where the platform lies. It was evident from cracks in the paint along this line.</p>
<p>There might be another factor here. These beams were built in 1984! I stripped them back and repainted with epoxy 2 pack paints 2 years ago. I wonder if some rot was already where the platform sits, then it was trapped in by the new paint. Eventually cracks formed allowing more…</p>
<p>Yes, this is a very good point and I think you're right. As you can see in the initial photo, the rot was in a line directly where the platform lies. It was evident from cracks in the paint along this line.</p>
<p>There might be another factor here. These beams were built in 1984! I stripped them back and repainted with epoxy 2 pack paints 2 years ago. I wonder if some rot was already where the platform sits, then it was trapped in by the new paint. Eventually cracks formed allowing more water in. The rot was not extensive, but it was easier to cut out a full section of wood for the repair, rather than letting in a small strip.</p>
<p>The other areas where problems have occurred is where the lashing press on the upper flanges.</p> That looks good. I hope it wi…tag:wharrambuilders.ning.com,2016-04-10:2195841:Comment:1414932016-04-10T18:12:24.214Zsailorjoyhttps://wharrambuilders.ning.com/profile/sailorjoy
<p>That looks good. I hope it will be your last repair on this beam.</p>
<p>That looks good. I hope it will be your last repair on this beam.</p> Getting there
tag:wharrambuilders.ning.com,2016-04-09:2195841:Comment:1413202016-04-09T19:43:16.595ZIan Bamseyhttps://wharrambuilders.ning.com/profile/IanBamsey
<p>Getting there…</p>
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/1930103816?profile=original" target="_self"><img class="align-left" src="http://storage.ning.com/topology/rest/1.0/file/get/1930103816?profile=RESIZE_1024x1024" width="721"></img></a></p>
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<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/1930106170?profile=original" target="_self"><img class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/1930106170?profile=RESIZE_1024x1024" width="721"></img></a></p>
<p>Getting there</p>
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/1930103816?profile=original" target="_self"><img width="721" src="http://storage.ning.com/topology/rest/1.0/file/get/1930103816?profile=RESIZE_1024x1024" width="721" class="align-left"/></a></p>
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<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/1930106170?profile=original" target="_self"><img width="721" src="http://storage.ning.com/topology/rest/1.0/file/get/1930106170?profile=RESIZE_1024x1024" width="721" class="align-full"/></a></p>
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<p></p> Hi Greg,
I´ve no experience w…tag:wharrambuilders.ning.com,2016-04-04:2195841:Comment:1411602016-04-04T19:00:03.061Zsailorjoyhttps://wharrambuilders.ning.com/profile/sailorjoy
<p>Hi Greg,</p>
<p>I´ve no experience with carbonbeams but I hope that they hold longer than wooden beams. The foam is only for the form.</p>
<p>I take unidierectional carbonlayers and kevlar-carbon rovings. It feels that they are very strong.</p>
<p>Best regards</p>
<p>Jan<br></br> <br></br> <cite>Greg Russell said:…</cite></p>
<p>Hi Greg,</p>
<p>I´ve no experience with carbonbeams but I hope that they hold longer than wooden beams. The foam is only for the form.</p>
<p>I take unidierectional carbonlayers and kevlar-carbon rovings. It feels that they are very strong.</p>
<p>Best regards</p>
<p>Jan<br/> <br/> <cite>Greg Russell said:</cite></p>
<blockquote cite="http://wharrambuilders.ning.com/forum/topics/beam-rot-advice-suggestions?commentId=2195841%3AComment%3A141289&xg_source=msg_com_forum#2195841Comment141289"><div><div class="xg_user_generated"><p> I wouldn't trust beams made out of foam sandwich. I made I beams for my Pahi 31 as one of my box beam had a hole in it from one hull to the other about 2" wide. Have not had any problems since and went from 14' to 17.5' wideand seems to sail better. I seems like a foam sandwich would have more flex in it. I try not to drill any holes in my beams. </p>
<p>Hope your new beams last longer, my beams are still good 6 years on.</p>
</div>
</div>
</blockquote> I wouldn't trust beams made…tag:wharrambuilders.ning.com,2016-04-04:2195841:Comment:1412892016-04-04T16:01:04.258ZGreg Russellhttps://wharrambuilders.ning.com/profile/GregRussell
<p> I wouldn't trust beams made out of foam sandwich. I made I beams for my Pahi 31 as one of my box beam had a hole in it from one hull to the other about 2" wide. Have not had any problems since and went from 14' to 17.5' wideand seems to sail better. I seems like a foam sandwich would have more flex in it. I try not to drill any holes in my beams. </p>
<p>Hope your new beams last longer, my beams are still good 6 years on.</p>
<p> I wouldn't trust beams made out of foam sandwich. I made I beams for my Pahi 31 as one of my box beam had a hole in it from one hull to the other about 2" wide. Have not had any problems since and went from 14' to 17.5' wideand seems to sail better. I seems like a foam sandwich would have more flex in it. I try not to drill any holes in my beams. </p>
<p>Hope your new beams last longer, my beams are still good 6 years on.</p> Hi Ian,
I had the same proble…tag:wharrambuilders.ning.com,2016-04-03:2195841:Comment:1412382016-04-03T20:06:18.546Zsailorjoyhttps://wharrambuilders.ning.com/profile/sailorjoy
<p>Hi Ian,</p>
<p>I had the same problem last year. First I repair the rooten Parts of the beams but it was not strange enough. The beam broke</p>
<p>in rough conditions. I repair it again but it broke again. So I build new ones made of foam, carbon and epoxy.</p>
<p>I think its better to build new beams instead of repairing the rotten one.</p>
<p>Best regards</p>
<p>Jan</p>
<p>Hi Ian,</p>
<p>I had the same problem last year. First I repair the rooten Parts of the beams but it was not strange enough. The beam broke</p>
<p>in rough conditions. I repair it again but it broke again. So I build new ones made of foam, carbon and epoxy.</p>
<p>I think its better to build new beams instead of repairing the rotten one.</p>
<p>Best regards</p>
<p>Jan</p>