3 Things to Know About Exterior Crawlspace Waterproofing

Posted on: 7 February 2020


When it comes to waterproofing your crawlspace, all the work doesn't have to take within your crawlspace itself. Part of the work can take place outside of your crawlspace. Exterior crawlspace waterproofing is about making sure water doesn't get into your crawlspace, to begin with. Here are a few things to know about waterproofing your crawlspace. 

#1: The Dirt Around Your Home Will Be Reshaped

Generally, the first step to exterior crawlspace or basement waterproofing starts with moving around the dirt that is up against your home. The dirt around your home is going to be dug out to apply a moisture barrier. The dirt that is right up next to your home will need to be dug a couple of feet deep next to your home.

#2: A Moisture Barrier Will Be Installed

Once the dirt is pulled back from the base of your home, a moisture barrier will be installed. The moisture barrier will extend the entire depth of your crawlspace and will fit snug up against your home. The point of a moisture barrier is to stop moisture from getting into the crawlspace, to begin with. It is an advanced barrier that will ensure moisture doesn't seep from the ground into your crawlspace. A moisture barrier has lots of little dimples on it that help direct water flow away from your home.

#3: Reshaping the Natural Drainage System

Once the moisture barrier is in place, it is time to reshape the natural drainage system around your home. You don't want to just put the dirt back haphazardly. Instead, you want to put gravel right next to the moisture barrier to help filter the water, and you want to put a full drainage system in place that directs the water away from your home.

When that is in place, you can put the dirt back. When you put the dirt back, the dirt needs to slope away from your home. Sloping the dirt away from your home is another way to direct water away from your home and away from your crawlspace.

When it comes to waterproofing your crawlspace, you can make changes to both the outside and the inside of the crawlspace. Exterior waterproofing is a great way to direct water away from your crawlspace, to begin with. A local crawlspace waterproofing service can let you know if exterior or interior waterproofing, or a combination of both, is what your home needs.