Mr RT Firefly: I Saw this and thought you could add it to your collection mate
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You should have a vapor barrier against any surface adjacent to the exterior if you're going to use fiberglass bats. Without it, the surface will condensate and the fiberglass will get wet. The DIY closed cell polyurethane spray foam kits do this job well ( two part ). 1/2" or an 1" would be enough for an adequate vapor barrier. The material is fire rated. I've welded and plasma cut through this foam, and once the source of ignition is gone, the flame goes out.
My boat's steel, so condensate is more of an issue, but wood and fiberglass will also sweat. Home builders around my area have been using spray foam for years now on house's. Because the stuff works so good , but is a little pricey, some builders will spray an inch over the framing, then finish off with bats.
In my ER, I sprayed closed cell, then 2" of rock wool sheet material , then sheathed with perforated aluminum.
I think the DIY kits cost about $1.00 a board foot. The yield is not as good as advertised, so you're going to have some material left over that cannot be sprayed.
Looking good on your project.
Conall
Conall's Boat Build
Greetings,
Mr. H. The significant mention in Mr. 63's post, in my opinion, is this: "...sheathed with perforated aluminum." Ventilation my friend.
Matt -
Proper insulation techniques aren't a high priority in most of Australia due to the minimal difference in temperature between outside and in. It might be still worth keeping in mind how the system "breathes" when sealing between hot and cold. Let the cold side breathe.
On a different note: THANKS A BUNCH for the shiny new bow roller!!
So nice to be the recipient of good karma and I'll make sure it rolls on.
It arrived while I was away, postage paid , and I gave it a test fit yesterday. It multiplies my boat bling x3. It will be the main ingredient for the nose job on my boat.
I'll post a thread with before and after pics.
You've also got me thinking whether a new Sarca might look better on the roller rather than my Marsh stockless anchor. hmmmm
Matt -
Proper insulation techniques aren't a high priority in most of Australia due to the minimal difference in temperature between outside and in. It might be still worth keeping in mind how the system "breathes" when sealing between hot and cold. Let the cold side breathe.
On a different note: THANKS A BUNCH for the shiny new bow roller!!
So nice to be the recipient of good karma and I'll make sure it rolls on.
It arrived while I was away, postage paid , and I gave it a test fit yesterday. It multiplies my boat bling x3. It will be the main ingredient for the nose job on my boat.
I'll post a thread with before and after pics.
You've also got me thinking whether a new Sarca might look better on the roller rather than my Marsh stockless anchor. hmmmm
Jeez that time lapse is spectacular. How'd you do that..?
It makes you guys look like real tyros. Hey, the Wallabies could do with you in the ruck and maul Matt.
Looking good. What timber did you use for the stem?
Hendo,
Thanks for all the posts on your build. I mean re-build. At first I was expecting to see your project fizzle like so many projects do. But much suprise to me you seem still steaming right along. Congrats, I have been amazed to see all of the input from other enthusists on aspects of your build and your gratious encouragement for suggestions. Keep up the good work and many of us, from the looks of the viewers, will continue to cheer your progress. Cheers mate from "Over here". Toolbuddie
Hendo,
Thanks for all the posts on your build. I mean re-build. At first I was expecting to see your project fizzle like so many projects do. But much suprise to me you seem still steaming right along. Congrats, I have been amazed to see all of the input from other enthusists on aspects of your build and your gratious encouragement for suggestions. Keep up the good work and many of us, from the looks of the viewers, will continue to cheer your progress. Cheers mate from "Over here". Toolbuddie
Agreed X 10!
Where's the flybridge? (Mark stay out of this )