Residential Rodent Slab
Northwest Crawl Space Services specializes in installing rodent slabs that lock the pests out of your home’s crawl space.
The only permanent solution for re-occurring rodent infestation is a RODENT SLAB.
Rodent exclusion is a fundamental aspect of every effective crawl space remediation project. However, rodent exclusion will usually only fix existing entry points, such as compromised foundation vent screens, gaps or cracks and burrows/tunnels under the foundation.
Often, even after a successful crawl space remediation project and professional rodent exclusion, rats can create new burrows and return to the same crawl space.
Our Experience with Rodents
Before & After pouring "Rodent Slab" and a retaining wall in crawl space
Two ways to protect your crawl space project investment, and eliminate the need for another extensive project in the future are an ongoing maintenance plan and a rodent slab.
Ongoing Maintenance Plan: After project completion, baited traps are set inside the crawl space and monitored regularly. If a rat does come back to the crawl space, it’s trapped quickly before it can create additional damage or reproduce. Traps are refreshed during each maintenance check. In addition, if the customer notices any foul odor, we will send a technician to inspect the crawl space ASAP and perform any work needed.
Rodent Slab: A rodent slab will completely prevent rodents from burrowing under the foundation and entering your crawl space. Combined with general rodent exclusion, rodent slab provides a permanent solution to even the most stubborn rodent problems.
What is a “Rodent Slab”?
A Rodent slab is a poured concrete slab that covers and seals the ground of the crawl space from wall to wall.
Step 1 – Prepare, level, and smooth out the ground.
Step 2 – Install seam-sealed vapor barrier to cover the entire slab area and prevents moisture seepage.
Step 3 – Set and tie metal rebar structure over the entire crawl space to reinforce the concrete, allow longevity and create a strong, sustainable slab.
Step 4 – Pour the concrete and smooth it out for optimal results. Most of our concrete slabs are mixed manually with concrete mixers at the job site in order to provide enough time to smooth the slab out and to prevent roughness and bumps.
When is a “Rodent Slab” necessary for your home’s crawl space?
A rodent slab is usually required in homes that face chronic rodent burrowing issues.
Old Foundation: This is common in older houses where the foundation walls weren’t poured very deep, making it easy for rodents to burrow underneath.
Soil Condition: Areas with soft ground, saturated soil and high populations of Norway rats, which are notorious for their digging skills.
Mixed Basement-Crawlspace Houses: Houses with part basement and part crawl space are very popular in the Seattle area. In this kind of structure, you will almost always find a shallow foundation that invites burrowing rats.
*Not every crawl space can have a rodent slab installed. If the clearance of the crawl space isn’t higher than 22”, a dig-out of the crawl space, and possibly also modifications to the foundation, will be required prior to the slab install.