[Rhodes22-list] Bilge ventilation

The Rhodes 22 Email List rhodes22-list at rhodes22.org
Sun Sep 13 15:26:44 EDT 2015 

Graham:  i have used moisture cure polyurethane construction adhesive before for this purpose without any adhesion problems, even after years of pounding!   It is totally waterproof and is inexpensive, quick and easy.  (Similar qualities to 3m 5200 but 2-4$ a tube.). It is easy to lay down a quick thick bead on the hull then set (squish) the lumber into place.  If reconstruction becomes necessary it is easier to grind out than glass.

Bob (palatka)

> On Sep 13, 2015, at 9:45 AM, The Rhodes 22 Email List <rhodes22-list at rhodes22.org> wrote:
> 
> Bob:
> 
> Why did you use construction adhesive to attach the stringers to the
> fibreglass tabs rather than epoxy and cloth?
> 
> Graham Stewart
> Agile. R22, 1976
> Kingston Ontario Canada
> 
> 
> 
> 
> -----Original Message-----
> From: rhodes22-list-bounces at rhodes22.org
> [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of The Rhodes 22 Email
> List
> Sent: September 12, 2015 10:44 PM
> To: The Rhodes 22 Email List
> Subject: Re: [Rhodes22-list] Bilge ventilation
> 
> Graham:
> I used 2x pressure treated pine lumber for stringers.  I used polyurethane
> construction adhesive to glue them to the old fiberglass tabs.  It worked
> very well.  Then i used pressure treated 3/4" exterior ply for the floor.
> It is very stable and i hope will last a very long time.  I have also found
> a nice polyethylene  carpet made from recycled water bottles to cover the
> floorboards.  It should be long lasting as well and shouldnt hold moisture,
> dirt or odor.
> 
> Bob (palatka)
> 
>>> On Sep 12, 2015, at 6:32 PM, The Rhodes 22 Email List
>> <rhodes22-list at rhodes22.org> wrote:
>> 
>> Larry:
>> I used white oak and epoxy when I rebuilt my 20' mahogany runabout to 
>> replace rotted ribs and bottom. White oak is resistant to rot but not 
>> impervious as the original wood ribs were white oak as well and 
>> eventually rotted albeit over a 40 year period. The big advantage 
>> using white oak is that it is amazing wood to steam bend. It is hard 
>> as rock when dry but after steaming for a while thin strips can be 
>> bent by hand easily. That makes it perfect for steam-bent ribs.
>> 
>> Hopefully the epoxy will prohibit rot that only works if the epoxy 
>> totally encapsulates the wood with no cuts gouges or holes in the 
>> wood. In my case the epoxy also bonded the ribs to mahogany ply that 
>> was used to cold mold the new bottom. That combination made for an 
>> incredibly strong, solid, dry and relatively light boat.
>> 
>> For the Rhodes floor, however, white oak is expensive and I would be 
>> inclined to use something that did not depend on the epoxy to be 
>> perfectly sealed. Pressure treated seems like the easiest, cheapest 
>> and most certain material to use. I will still use epoxy to bond it in 
>> place. Before I bought my Rhodes the previous owner rebuilt the floor 
>> structure using pressure treated fence boards. They lasted for more 
>> than 20 years with no sign of rot. The problem with using fence boats 
>> is that they are only .5 inch thick and that did not give a 
>> sufficiently wide edge for the floor boards to be screwed down. I was 
>> also unhappy with where they were located so I tore it all out to be 
>> replaced with thicker stock. I will no doubt be kicking myself for 
>> that as tearing things out is so much easier than putting it all back 
>> in
>> - a realization that weighs more heavily as I consider that it was not 
>> really necessary except to feed my obsessive nature.
>> 
>> 
>> Graham Stewart
>> Agile. R22, 1976
>> Kingston Ontario Canada
>> 
>> 
>> 
>> 
>> -----Original Message-----
>> From: rhodes22-list-bounces at rhodes22.org
>> [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of The Rhodes 22 
>> Email List
>> Sent: September 12, 2015 1:47 PM
>> To: 'The Rhodes 22 Email List'
>> Subject: Re: [Rhodes22-list] Bilge ventilation
>> 
>> When we rebuilt the floor and stringers, we used White Oak stringers 
>> and expoxied them.
>> 
>> Larry Allen
>> Makai
>> Sarasota
>> 
>> -----Original Message-----
>> From: rhodes22-list-bounces at rhodes22.org
>> [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of The Rhodes 22 
>> Email List
>> Sent: Saturday, September 12, 2015 11:11 AM
>> To: 'The Rhodes 22 Email List'
>> Subject: Re: [Rhodes22-list] Bilge ventilation
>> 
>> Bob:
>> 
>> Best and crucial solution is to stop the leaks. I have gone to 
>> ridiculous lengths to do that by glassing the hull-heck joint and 
>> installing full acrylic window coverings to replace all ports.
>> 
>> I am not sure that ventilation alone would preclude rot over time if 
>> the bilge is not dry otherwise. I plan to rebuild the floor and 
>> stringers with rot resistant materials - I will probably use pressure 
>> treated pine for the structural pieces. That said, ventilation still 
>> serves a purpose in terms of mold and mildew etc.
>> 
>> I have installed a solar vent that should keep air moving in the boat. 
>> The bilge is hardly air tight at the best of time and, so long as 
>> water is not getting in, good cabin ventilation should be sufficient 
>> to move air through the bilge. For long periods and during the winter 
>> when the solar vent may not be operating I will leave the floor access
> panels open.
>> 
>> 
>> 
>> Graham Stewart
>> Agile. R22, 1976
>> Kingston Ontario Canada
>> 
>> 
>> 
>> 
>> -----Original Message-----
>> From: rhodes22-list-bounces at rhodes22.org
>> [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of The Rhodes 22 
>> Email List
>> Sent: September 11, 2015 7:54 PM
>> To: The Rhodes 22 Email List
>> Subject: [Rhodes22-list] Bilge ventilation
>> 
>> Has anyone installed vent holes or even active ventilation under the 
>> floor to prevent the stringers and floor from rotting out?
>> 
>> Bob (palatka)
>> __________________________________________________
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>> 
>> 
>> __________________________________________________
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>> go to http://www.rhodes22.org/list 
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>> 
>> __________________________________________________
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> 
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> 
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