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First look
The first problem is the door, wood rots! Letting all kinds of unwelcome things in like the outside weather, bugs, and rodents.
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Vents are not good either
Vents lets in the air, rain, and everything else.. when you add the moisture you then start dealing with another problem.. Mold!
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Drainage matting
drainage matting is put down first to give any water that might come in thought the ground, away to the pump.
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Encapsulation
At 20 mils. thick, with polyester cord reinforcement inside the clean space crawl space liner is heavey and durable.
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TripleSafe Sump Pump
The pump is installed for any water that might get in though the ground. And its also nice to have in case you have the (OH NO ) moment when the plumbling brakes. (Triple Safe Pump).
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Lets tighten things up.
Last but very important the Ever Last door, A snug- fitting all-plastic door that stops air and moisture from entering.