Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 25-03-2023, 16:09   #1
Registered User

Join Date: Dec 2009
Location: Miami
Boat: Tartan 3700
Posts: 543
Cored Hull & Insulated Hull

A curiosity question:

It is my understanding that when sailing in higher latitudes, it is desirable to have an insulated hull to help prevent condensation, particularly from heating the boat. I'm wondering if having a cored hull serves this purpose (although not its intent), helps serve this purpose or doesn't serve it at all.

Thank you for your thoughts/input.

Ron
Roniszoro is offline   Reply With Quote
Old 25-03-2023, 16:18   #2
Registered User

Join Date: Jan 2018
Boat: 50ft Custom Fast Catamaran
Posts: 9,581
Re: Cored Hull & Insulated Hull

It helps. My entire hull is R4.2 due to the 1” (25mm) corecell core.

Balsa less so.
Chotu is online now   Reply With Quote
Old 29-03-2023, 15:04   #3
Registered User

Join Date: Apr 2022
Location: Melbourne Australia
Boat: Jeanneau, Sunfast 3200, 32-33 feet.
Posts: 70
Re: Cored Hull & Insulated Hull

My boat is balsa core. My caravan is lined with a pushable material that is probably a PVC outer finish. The caravan (although fibreglass) doesn't condensate, and similar owners say other caravans do despite them being fibreglass. Many Australian caravans made of fibreglass, do so by buying European fibreglass sheets, which have an aerated foam core. So IMO it's possible to line the bare parts interior of the hull to avoid condensation. Even my racer cruiser is lined behind its seating area, where the hull is exposed. But I am in Australia. Yes I have parked in around zero (in a ski resort area), but not for long! IMO lining is worth considering. Good luck!
Melbourne Park is offline   Reply With Quote
Old 29-03-2023, 15:23   #4
Moderator
 
noelex 77's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Boat: Bestevaer.
Posts: 14,140
Re: Cored Hull & Insulated Hull

Quote:
Originally Posted by Roniszoro View Post
I'm wondering if having a cored hull serves this purpose (although not its intent), helps serve this purpose or doesn't serve it at all.
Thank you for your thoughts/input.
Ron
High latitude boats normally incorporate around three inches of insulation material. A cored hull will be better than a solid hull, but the insulation properties of the small amount of core material (which is chosen for its structural rather than thermal properties) is a long way short of ideal insulation.
noelex 77 is offline   Reply With Quote
Old 29-03-2023, 15:47   #5
Registered User

Join Date: Jun 2009
Location: Annapolis
Boat: Beneteau 46.1
Posts: 87
Re: Cored Hull & Insulated Hull

I've seen some great articles online about refits that added insulation inboard, then faced that with 1" planking with 1/8" gaps. Very beautiful and the owners reported that summer indoor temps dropped 10 - 15 degrees, similar to cold weather. I don't know about sweating on the cold side of the insulation. That's worth asking about.
gs41escapade is offline   Reply With Quote
Old 29-03-2023, 16:14   #6
Registered User

Join Date: Apr 2013
Location: Penobscot Bay, Maine
Boat: Tayana 47
Posts: 2,111
Re: Cored Hull & Insulated Hull

Quote:
Originally Posted by gs41escapade View Post
I've seen some great articles online about refits that added insulation inboard, then faced that with 1" planking with 1/8" gaps. Very beautiful and the owners reported that summer indoor temps dropped 10 - 15 degrees, similar to cold weather. I don't know about sweating on the cold side of the insulation. That's worth asking about.


I had a Nordic 44 that was built that way, with a solid glass hull lined with just a thin layer of closed cell foam glued to the hull with varnished staving strips covering it. I canít tell you how much temperature difference this accomplished but it did avoid visible condensation and since it was glued to the hull there was no chance for condensation on the exterior facing surface either. The horizontal staving was fastened to thin vertical wooden strips that were glued to the hull about every 18Ē.
jtsailjt is offline   Reply With Quote
Old 29-03-2023, 17:54   #7
Registered User
 
deblen's Avatar

Join Date: Oct 2014
Location: Bay of Fundy,Grand Manan,N.B.,Canada N44.40 W66.50
Boat: Mascot 28 pilothouse motorsailer 28ft
Posts: 2,807
Images: 1
Re: Cored Hull & Insulated Hull

Some info from UK: https://www.yachtingmonthly.com/gear...our-boat-79546
__________________
My personal experience & humble opinions-feel free to ignore both
.
deblen is offline   Reply With Quote
Reply

Tags
core, hull

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Airmar "Transom&q uot ; style triducer does not give wate Franziska Marine Electronics 3 04-10-2021 12:45
Cored or un-cored hull? jewt Construction, Maintenance & Refit 40 03-10-2018 14:18
Cored Hull (Insulated) vs. Solid Glass S/V Reveille General Sailing Forum 1 18-06-2018 16:11
Replace depth transducer cored hull - r&r thru with in hull? rpeebles Marine Electronics 5 11-04-2012 11:58
Has Anyone Seen an Insulated Steel Hull ? SabreKai Construction, Maintenance & Refit 33 11-09-2011 19:17

Advertise Here


All times are GMT -7. The time now is 08:53.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.