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Rare But Extreme Temperature And Humidity Fluxiations

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  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
  • 18,255 posts
Rare But Extreme Temperature And Humidity Fluxiations
Posted by SeeYou190 on Sunday, March 22, 2020 12:34 PM

Down here, my house is 74 degrees and low humidity all year around. The interior temperature of my house will only drop to about 65 degrees in the coldest days of Winter without the heater on. For 99.8% of the year the house is 74 degrees inside, perfectly regulated by a 3 ton A/C unit in 1,300 square feet.

As such, I have very little concern for changes in temperature or humidity in the layout room.

However, post-hurricane, this could become very different.

I am sure in my final (hopefully) twenty-thirty years or so, there will be a few of these things hit my house again. I have lived here twenty-one years and been hit by four so far.

I will always evacuate for hurricanes in the future. 

That means I will not be here when the power goes out, and the house will be empty with no air conditioning or ventilation for 5-10 days in the heat of Summer. Interior temperatures will reach 100 degrees with high humidity for a long time.

My layout legs will be steel, L-girders will be Poplar, Fascia PVC, stringers 2 by 4 pine, risers 1 by 4 or 1 by 2 pine, and subroadbed 3/4" plywood.

Scenery will be plaster over cardboard forms.

How safe is this design from destruction in these conditions?

-Kevin

Living the dream.

  • Member since
    February 2005
  • From: Vancouver Island, BC
  • 23,321 posts
Posted by selector on Sunday, March 22, 2020 12:45 PM

I think you'll be okay, although the steel components may develop surface rust over time if not treated/coated, and I would put something under any steel legs to keep them off the floor...just in case.

I would want my rolling stock and locomotives low-ish to keep out of the hottest part of the room, closer to the ceiling or windows.  But, not so low that they may fall victim to any minor flooding or sewer backups.

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Posted by davidmurray on Sunday, March 22, 2020 1:11 PM

Our club uses plastic plumping drain pipes for legs.  Ours come apart for moving, yours would not need to.  Definitely no rust problems.

 

David Murray from Oshawa, Ontario Canada
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  • From: Bedford, MA, USA
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Posted by MisterBeasley on Sunday, March 22, 2020 1:33 PM

Make sure the plywood subroadbed is painted or otherwise sealed on both sides.  People blame warped track like the prototype experiences on rail expansion, but in model scales the problem is much more likely to be expansion of subroadbed with humidity.

A big advantage of foam is that it won't be affected by humidity.

It takes an iron man to play with a toy iron horse. 

  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
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Posted by SeeYou190 on Sunday, March 22, 2020 1:49 PM

selector
Steel components may develop surface rust over time if not treated/coated, and I would put something under any steel legs to keep them off the floor.

The steel legs are made by Edsal Industrial Products and are factory painted gray. We have workbenches in our shop with these legs 20+ years old with no rust.

I fasten 2 by 4s under the legs to keep them off of the floor. This is more to protect the floor more than anything else.

I already have all the legs for the layout puchased and ready to go!

selector
I would want my rolling stock and locomotives low-ish.

The locomotives and rolling stock will come with us in the evacuation. I learned that lesson the hard way once before when we were renting. One of a kind custom painted items have zero value to your insurance company. When you evacuate, you need to take the personal treasures that cannot be replaced.

MisterBeasley
Make sure the plywood subroadbed is painted or otherwise sealed on both sides.

My plan is to coat every surface with Kilz-2 Primer. I hope that will be sufficient.

-Kevin

Living the dream.

  • Member since
    November 2013
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Posted by snjroy on Sunday, March 22, 2020 2:30 PM

Hi there. Track will likely expand if you did not leave any gaps. On my first layout, the track expanded during a particularly hot period and warped to the point where some of my metal steam locos were shorting from the cowcatcher (that touched the warped track). We don't have A/C here (there are some advantages to living in Eastern Canada!). It all went back in place when the weather came back to normal. I left some gaps on my current layout in case that happens again.

My biggest worry is water. We have a sum pump in the basement and if the power goes out in severe rain conditions, I would need to connect a generator to pump the water out... Otherwise, the deluge would cause major damage.

Simon

  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
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Posted by SeeYou190 on Sunday, March 22, 2020 2:38 PM

snjroy
Track will likely expand if you did not leave any gaps.

I do not solder joints between flex track. Each piece of flex gets its own feeder. Sectional track gets soldered in sections of no more than three pieces, 27 inches long maximum. Each of these sections get their own feeders. Turnouts are not soldered and each gets three feeders.

This allows a lot of room for movement and expansion.

I hope it sounds like enough.

All hidden track will be Kato Unitrack, and none will be soldered or glued down.

-Kevin

Living the dream.

  • Member since
    December 2014
  • 443 posts
Posted by Wolf359 on Sunday, March 22, 2020 3:41 PM

While no plan is ever completely foolproof, from what I know about how heat and humidity can affect things (from living in Colorado where the weather can and does change very rapidly and radically), and seeing the countermeasures you're taking, I'd say you're making some very wise decisions on this build.

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Posted by mbinsewi on Sunday, March 22, 2020 3:50 PM

SeeYou190
The locomotives and rolling stock will come with us in the evacuation.

So how many extra containers or boxes would that take?  It just seems like a lot of extra baggage, considering your not moving, your evacuating.

snjroy, have you considered a battery back-up system for your sump?

Mike.

  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
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Posted by SeeYou190 on Sunday, March 22, 2020 4:50 PM

mbinsewi
So how many extra containers or boxes would that take? It just seems like a lot of extra baggage, considering your not moving, your evacuating.

The last evacuation (Hurricane Irma) it took ten Axiom Train Cases. The next evacuation will require 15 as the Fleet Of Nonsense has grown.

We have two totes of memories, the trains, the kids art projects, and then some clothes. It all fits easily in the Impala with a cooler, food, and 20 gallons of extra gasoline hanging on the back. 

Everything else is itemized and insured.

We have gotten good at this.

-Kevin

Living the dream.

  • Member since
    July 2006
  • From: west coast
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Posted by rrebell on Monday, March 23, 2020 11:33 AM

Use a frame and 2" foam, then no worries.

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Posted by Wolf359 on Monday, March 23, 2020 1:35 PM

I've never heard of an Axiom train case. What do they look like, and where can one buy them?

  • Member since
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  • From: Reading, PA
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Posted by rrinker on Monday, March 23, 2020 4:30 PM

http://www.axiantech.com/ModelRR.html

But I gave up on these, because you lay things on their sides. The ones from Spring Mills stand the cars on their wheels and stopped things like the handrails on my locos getting bent. 

The ones I have, I use for less delicate cars like Athearn and Accurail open hoppers. Locos and better detailed cars only go in the Spring Mills boxes.

                                       --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
  • 18,255 posts
Posted by SeeYou190 on Monday, March 23, 2020 4:54 PM

The axion train cases are great for evacuation.

They are easy to pack, hold the most train cars per cubic foot of space, and stack easily in the car because they are so thin.

I do not use them for long term storage.

All my freight cars have free-standing ladders, seperate grab irons, and brake detail. I have not had any problem with damage.

Locomotives do not get evacuated. They have insurable value.

-Kevin

Living the dream.

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Monday, March 23, 2020 5:27 PM

 You might think - but each Spring Mills box is rated for 30 cars, vs 20 for Axian. And they have the same multi-stack carry bag. My club stuff takes a little over 3 of the 5 boxes that fit int he carry case - I think if all 5 boxes were filled with properly weighted cars, it would be rather heavy.

                                          --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

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