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Old 06-04-2013, 05:08 PM  
nealtw
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Way to much reading: So is it safe to say, many things should be considered and it may be a good idea for a perticular house but not a solve all problem solution for every house.


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Old 06-05-2013, 06:05 AM  
WindowsonWashington
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One situation does not fit all for certain.

If the grading and water management are good, conditioning the crawl is usually the better option.


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Old 06-05-2013, 08:45 AM  
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One situation does not fit all for certain.

If the grading and water management are good, conditioning the crawl is usually the better option.
That's my point. It may be a good option for some cases but there are to many things that could go wrong to make it a blanket statement without looking into the details of each house.

The homeowner has to know the pitfalls before making a big change to one most important systems in the house.

I will continue to argue with anyone that suggests it without asking 20 questions before giving that answer.
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Old 06-06-2013, 08:03 PM  
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That's my point. It may be a good option for some cases but there are to many things that could go wrong to make it a blanket statement without looking into the details of each house.

The homeowner has to know the pitfalls before making a big change to one most important systems in the house.

I will continue to argue with anyone that suggests it without asking 20 questions before giving that answer.
I feel some good jousting coming on.....

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Old 10-30-2014, 11:43 AM  
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If you are in a hot HUMID area such as anywhere between Texas up to at least Nebraska and east to the Atlantic and down to Florida, basically more than 50+% of the USA then a fully encapsulated crawl space is by far the better option, PERIOD.
In fact in most of these states now it is starting to become code.
I am pretty sure in NC right now any and all new homes are SEALED crawl space with no vents.

If you are in a very cold area like Maine and you do not have hot humid summers then totally different story, it really doesn't matter much either way.
But a French Drain around the perimeter and spray foam the entire floor joist and maybe a poly liner on the ground and you are good to go.

Otherwise full encapsulation, thick poly on the ground, R13 polyiso foam board on the crawl space walls, pull out all the floor joist insulation because it is worthless anyway since it will be saturated with water and rats nest.
Then IF you have your HVAC plenum under the house you just cut a hole in the plenum and install a vent so the air is conditioned.
you do NOT put a return, just a vent INTO the space this conditions the air either hot or cold and it stays bone dry.
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Old 10-30-2014, 03:57 PM  
nealtw
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If you are in a hot HUMID area such as anywhere between Texas up to at least Nebraska and east to the Atlantic and down to Florida, basically more than 50+% of the USA then a fully encapsulated crawl space is by far the better option, PERIOD.
In fact in most of these states now it is starting to become code.
I am pretty sure in NC right now any and all new homes are SEALED crawl space with no vents.

If you are in a very cold area like Maine and you do not have hot humid summers then totally different story, it really doesn't matter much either way.
But a French Drain around the perimeter and spray foam the entire floor joist and maybe a poly liner on the ground and you are good to go.

Otherwise full encapsulation, thick poly on the ground, R13 polyiso foam board on the crawl space walls, pull out all the floor joist insulation because it is worthless anyway since it will be saturated with water and rats nest.
Then IF you have your HVAC plenum under the house you just cut a hole in the plenum and install a vent so the air is conditioned.
you do NOT put a return, just a vent INTO the space this conditions the air either hot or cold and it stays bone dry.
Ok this arguement seems to be all about the humidity in the southern states. So let's say you have had high humidity for 2 months, you give it a number, has anyone ever poked the lumber in a crawlspace to see what the moisture content is as compared to when the humidity is way less. And then how much is to much for the wood speices used in that house.


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