• From: City of Roses
  • Registered: 2004-03-29
  • Posts: 793

Topic: Need an Opinion or Two.............

Hiya All,

I'm going to be doing some interior restoration on my Bug in the near future.  Part of that restoration will involve the floors and carpeting.

Now I have already removed the original floor tarboards.  I then prepped the front floors and painted them with POR 15.  Turned out quite well.  For this restoration I have purchased floor insulation to go under the carpeting.  This floor insulation is rather like Dynamat only not sticky. 

I had thought that I'd lay down beads of RTV on the floor pan ridges and then apply the floor insulation.  That would leave open air spaces under the floor insulation.

Then I thought that if I applied the RTV to the foor insulation near to the edge all the way around and installed it that way, the air spaces would still be under the floor insulation, but they would be sealed off by the RTV.

Since the floor pan is sealed with POR 15, does anybody see any problem with sealing those air spaces?  I'm thinking that might preferable to leaving them open to moisture.  But then there's the condensation issue............

Does any of this really matter since the pan is coated with POR 15?  Am I just overthinking this issue?

Mike

1970 AS Bug
1970 Bus - The Ruptured Duck
  • From: Colorado Springs, CO
  • Registered: 2004-03-27
  • Posts: 3,622

Re: Need an Opinion or Two.............

Mike: It's probably 6 of one and a half dozen of the other....Is the insulation 100% impermeable to air and water? If so, you could probably seal it up. But my preference would be to install it so that some air circulation is possible. The POR-15 will protect from rust but is mold an issue in your area? I know that you're not on the wet side of the State, but still. Just some thoughts.

Clancy

  • From: City of Roses
  • Registered: 2004-03-29
  • Posts: 793

Re: Need an Opinion or Two.............

Hiya Clancy,

It always helps to discuss pending decisions.

You mentioned something nobody else (I've circulated this question around a bit) has touched on.  Mold.  And I hadn't even considered that possibility.  And that really determines it for me.  I'll leave those "under the mat" spaces open to the surrounding air.

Thanks for your insight and wisdom Clancy!

Mike

1970 AS Bug
1970 Bus - The Ruptured Duck