treddieafloat Posted July 15, 2017 Report Share Posted July 15, 2017 I am replacing my leaky pancake vent with a mushroom. As the diameter of the mushroom is less than the old vent I will be left with 4 screw holes in the roof. Can anyone suggest how to fill them and make it water tight before a coat of paint. Cheers Treddie Link to comment Share on other sites More sharing options...
BEngo Posted July 15, 2017 Report Share Posted July 15, 2017 If it is a steel roof weld them up and grind flush. Alternatively, get them bright and shiny inside and fill with Isopon, JB Weld or similar stuff then sand flush. N Link to comment Share on other sites More sharing options...
sans allumette Posted July 15, 2017 Report Share Posted July 15, 2017 44 minutes ago, treddieafloat said: I will be left with 4 screw holes in the roof How about 4 x stainless-steel screws with epoxy resin on threads? Link to comment Share on other sites More sharing options...
Heffalump Posted July 15, 2017 Report Share Posted July 15, 2017 12 minutes ago, sans allumette said: How about 4 x stainless-steel screws with epoxy resin on threads? While functional, it would look messy. I think the only real option here is to fill with weld, grind flat and repaint, as BEngo said above. The JBweld option works as an alternative! Link to comment Share on other sites More sharing options...
Chewbacka Posted July 15, 2017 Report Share Posted July 15, 2017 I epoxied some stainless screws into the holes leaving them proud by a few mm then carefully took the tops of with a slitting disc, followed by a flap disc to get it flush. Needs to be done slowly with plenty of cooling time as you don't want it to hot or the epoxy degrades. Not a good as welding, but it's quick and easy. Depends if you view the boat as something of beauty or predominately functional. Link to comment Share on other sites More sharing options...
Neil2 Posted July 15, 2017 Report Share Posted July 15, 2017 Belzona. Link to comment Share on other sites More sharing options...
Ray T Posted July 15, 2017 Report Share Posted July 15, 2017 (edited) 10 minutes ago, Neil2 said: Belzona. Why bless you sir - bad attack of wind there! Eeee this Merlot is good. Edited July 15, 2017 by Ray T Link to comment Share on other sites More sharing options...
Neil2 Posted July 15, 2017 Report Share Posted July 15, 2017 16 minutes ago, Ray T said: Why bless you sir - bad attack of wind there! Eeee this Merlot is good. Ahem, you do realise the sun isn't over the yard arm yet..? Link to comment Share on other sites More sharing options...
Ray T Posted July 15, 2017 Report Share Posted July 15, 2017 (edited) 34 minutes ago, Neil2 said: Ahem, you do realise the sun isn't over the yard arm yet..? Always 11am on our boat! Following Naval tradition. THE SUN'S OVER THE YARDARM The expression is believed to have originated in the north Atlantic where the sun would rise above the upper mast spars (yards) of square sailed ships around 11am. This coincided with the forenoon ‘stand easy’ when officers would go below and enjoy their first rum tot of the day. Eventually the phrase was adopted universally as meaning it is a suitable time to have an alcoholic beverage. Or: SUN IS OVER THE YARDARM - "(time for happy hour to begin). This expression is thought to have its origins in an officers' custom aboard ships sailing in the north Atlantic. In those latitudes, the sun would rise above the upper yards - the horizontal spars mounted on the masts, from which squaresails were hung - around 11 a.m. Since this coincided with the forenoon 'stand easy,' officers would take advantage of the break to go below for their first tot of spirits for the day. The expression washed ashore where the sun appears over the figurative yardarm a bit later in the day, generally after 5 p.m., and the end of the workday." From "When a Loose Cannon Flogs a Dead Horse There's the Devil to Pay: Seafaring Words in Everyday Speech" by Olivia A. Isil (International Marine/Ragged Mountain Press, McGraw-Hill, 1996) I'll stick with the first interpretation. Edited July 15, 2017 by Ray T Link to comment Share on other sites More sharing options...
Neil2 Posted July 15, 2017 Report Share Posted July 15, 2017 1 hour ago, Ray T said: Always 11am on our boat! Following Naval tradition. THE SUN'S OVER THE YARDARM The expression is believed to have originated in the north Atlantic where the sun would rise above the upper mast spars (yards) of square sailed ships around 11am. This coincided with the forenoon ‘stand easy’ when officers would go below and enjoy their first rum tot of the day. Eventually the phrase was adopted universally as meaning it is a suitable time to have an alcoholic beverage. Or: SUN IS OVER THE YARDARM - "(time for happy hour to begin). This expression is thought to have its origins in an officers' custom aboard ships sailing in the north Atlantic. In those latitudes, the sun would rise above the upper yards - the horizontal spars mounted on the masts, from which squaresails were hung - around 11 a.m. Since this coincided with the forenoon 'stand easy,' officers would take advantage of the break to go below for their first tot of spirits for the day. The expression washed ashore where the sun appears over the figurative yardarm a bit later in the day, generally after 5 p.m., and the end of the workday." From "When a Loose Cannon Flogs a Dead Horse There's the Devil to Pay: Seafaring Words in Everyday Speech" by Olivia A. Isil (International Marine/Ragged Mountain Press, McGraw-Hill, 1996) I'll stick with the first interpretation. I was talking about up here. The last time I saw the sun was 1968. Link to comment Share on other sites More sharing options...
BWM Posted July 15, 2017 Report Share Posted July 15, 2017 Milliput will do the job, drill the holes out slightly larger to ensure clean metal within and leave the putty slightly raised to allow for finishing off. Link to comment Share on other sites More sharing options...
ditchcrawler Posted July 15, 2017 Report Share Posted July 15, 2017 3 hours ago, Neil2 said: Belzona. Its years since I have seen or used this so googled it, My word the range is huge now. Link to comment Share on other sites More sharing options...
treddieafloat Posted July 16, 2017 Author Report Share Posted July 16, 2017 Thanks for the suggestions bit of welding it seems to be. Link to comment Share on other sites More sharing options...
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