Crawl Space Portland

This is a commonly used type of drain for the lowest point in the crawl space. The white part of the valve in the center is a one-way flapper that commonly gets jammed open or gets chewed through by rats.
This valve is connected to a plastic pipe that goes under the foundation and usually ends up downhill from the house. This downhill end is almost never screened and rodents will use it to enter your home.
If you have a pipe sticking out of your landscaping you should screen it, and have Nature First insect your crawl space. (503)579-3680

Happy Saturday!
Let talk a little about v***r barrier.
The thickness of v***r barrier you choose should depend on two things:

1. Utilization of the crawlspace (storage, maintenance, etc.)
2. Soil or material on the floor of the crawlspace

If the crawlspace is entered regularly for maintenance, or if items are going to be stored in the crawlspace, it is a good idea to get a thicker v***r barrier such as 12 mil. The bare minimum 6 mil is also inadequate if the floor of the crawlspace has rocks, roots, or concrete chunks, remember that one tear or puncture in your v***r barrier will allow moisture to pass through and render the barrier less effective.
We custom tailor every clean out to our customers needs and desires down to the thickness of the v***r barrier. For a healthier home and to make sure you have the correct v***r barrier protecting your home, call us for a free consult! (503)579-3680