Taken on its own, crawl Space Vapor Barrier Installation treats one part of the problem. Taken in order, it is the part that makes the rest hold. That is how we schedule it on Walhalla jobs.
Bare soil under the house is evaporating moisture into the space every day.
Vapor barrier on piedmont and upstate ground
On clay the ground under a Walhalla house holds water long after rain, so the barrier is doing two jobs — stopping soil moisture coming up, and keeping the space off ground that stays wet for days at a time.
Clay also makes Walhalla crawl spaces slow to dry. The surrounding ground gives moisture back reluctantly, which is why this stage is finished against a reading rather than a date.
Walhalla at a glance
| County | Oconee County |
|---|---|
| ZIP | 29691 |
| Elevation | about 1027 ft |
| Region | Piedmont and Upstate |
Named water nearby
- Browns Lake (reservoir)
- Lake Jemike (reservoir)
- Bookers Lake (reservoir)
- Crystal Lake (reservoir)
Signs you need this
- Bare soil anywhere on the crawl space floor
- Existing sheeting that is torn, bunched or not sealed at seams
- Barrier that stops short of the walls and piers
- Crawl space relative humidity holding above 60 percent
What the work involves
For a Walhalla crawl space, the work covers:
- Clearing and preparation of the crawl space floor
- Reinforced polyethylene barrier across the full soil area
- Overlapped and sealed seams
- Barrier carried up and sealed to walls and piers
Why it is worth dealing with now
A crawl space problem in Walhalla is not self-limiting. The conditions that created it are still there, and they are still working.
The full method and the step-by-step for this work is on the Crawl Space Vapor Barrier Installation page, and how it behaves across the state is on the Vapor barrier in South Carolina page.
Vapor barrier in Walhalla: common questions
Will a barrier stop water that is already getting in?
No. A barrier manages soil moisture and vapor, not liquid water under pressure. If water is entering the space near Browns Lake, drainage comes first or the sheeting simply floats on it.
There is already plastic under my Walhalla house. Is that enough?
Often not. Most of what we find has been laid loose, has torn, or was never sealed at the seams and walls. Unsealed sheeting performs much closer to bare soil than to a finished barrier.
Can I stay in the house while the work is done?
In almost all cases, yes. The work happens under the floor, and access is usually through an exterior hatch. We will tell you up front if anything about your Walhalla property changes that.
Will my Walhalla crawl space dry out if I open the vents?
Usually not. For much of the year the air around Walhalla is warmer and wetter than the crawl space, so opening it up deposits moisture on the cool joists instead of carrying it away.
My house is on a slope. Does that make it worse?
Usually. Water landing uphill of a Walhalla house travels along the clay to the foundation, so intercepting it uphill often does more than extra pump capacity underneath.
Will a barrier fix water that is already coming in?
No. A barrier manages soil moisture and vapor, not liquid water under pressure. If groundwater or surface runoff is entering the space, that needs drainage and a sump before a barrier will do its job.
Vapor barrier near Walhalla
We cover Walhalla and the surrounding part of Oconee County. The same service in nearby towns:
Other crawl space services in Walhalla
Crawl Space Water Removal in Walhalla
Standing water pumped and extracted from under the house, then the saturated material taken out.
Crawl Space Structural Drying in Walhalla
Joists, girders and subfloor dried back to a measured target with air movers and dehumidification.
Crawl Space Mold Remediation in Walhalla
Contained removal of mold-affected material, HEPA cleaning, and the moisture source shut off.
Crawl Space Drainage and Sump Pump Installation in Walhalla
Interior drainage to collect water, a sump and pump to lift it, and a discharge that takes it away.
Crawl Space Wood and Subfloor Repair in Walhalla
Rotted joists, girders, rim joists and subfloor sections repaired or replaced once the space is dry.
Or see everything we cover in our Walhalla service area, and how this service works across the state on the South Carolina page.
Crawl Space Vapor Barrier Installation in Walhalla
Call (888) 724-1354 and tell us your street and what the space looks like. We will tell you whether this is the right stage to start at.
Tell us what you are seeing under the house and we will tell you what it needs.