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Spiders still in basement 6 months after Ive airsealed and blockfoamed the joist bays

Ok this has me scratching my head where these little ba@#%@ are coming from
I block foamed and sealed each joist bay and sealed along the sill plate
Any ideas as I have all pertrusions sealed so I have no idea where they are coming from, surely they cant live for that long
Any ideas or pointers would be great

Asked by Darren Finch
Posted Nov 4, 2012 12:24 PM ET

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3 Answers

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1.

Darren,
Spiders aren't so bad -- they catch and eat flies and mosquitoes.

Answered by Martin Holladay, GBA Advisor
Posted Nov 4, 2012 1:10 PM ET

2.

You may want to call a bugologist on this one, but I believe tarantulas can go a month or more w/out food. Too, the ones you are seeing now may be Gen 4. And, I surmise that, unless you can depressurize to -10 psi, there are still gaps big enough for young spiders to enter.

Answered by John Klingel
Posted Nov 5, 2012 2:50 AM ET

3.

Usually spiders only set up where there is airflow for their webs to catch dinner. There are electronic plug-in devices that emit a sound humans can't hear, and that keep spiders and other critters away.

Answered by michael maines
Posted Nov 5, 2012 1:56 PM ET

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