What crawl Space Vapor Barrier Installation involves in Port Royal is the same as anywhere. What differs is the condition it is dealing with, and that is set by the ground the house sits on.
Bare soil under the house is evaporating moisture into the space every day.
Vapor barrier on lowcountry and coastal plain ground
A barrier earns its keep faster around Port Royal than almost anywhere. With the water table close to the surface the soil underneath is damp more or less permanently, so an uncovered crawl space floor is evaporating into the space every day of the year.
Flood-zone construction around Port Royal is built elevated, which means newer homes have crawl spaces too. Newer framing, the same conditions underneath.
Port Royal at a glance
| County | Beaufort County |
|---|---|
| ZIP | 29935 |
| Elevation | about 23 ft |
| Region | Lowcountry and coastal plain |
Named water nearby
- Crystal Lake (lake)
- the Broad River (stream)
- the Colleton River (stream)
- Hill Field 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
The scope on a Beaufort County property:
- 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
Waiting is the expensive option here. Moisture that has been under a Port Royal floor for a year has already changed what the repair involves.
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 Port Royal: common questions
Barrier or full encapsulation for a Port Royal home?
A barrier covers the ground and stops soil moisture. Encapsulation seals the walls and vents too and controls humidity directly. Which one your Beaufort County property needs should follow a humidity reading, not a preference.
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 Crystal Lake, drainage comes first or the sheeting simply floats on it.
Do you work outside Port Royal itself?
Yes. We cover Beaufort County broadly, including Beaufort, Saint Helena Island and Seabrook, and the rest of the Lowcountry and coastal plain of South Carolina.
Does being close to the coast make this worse?
It raises the water table and lengthens the wet season, which is why homes near Crystal Lake and the low ground around Port Royal tend to need drainage as well as a barrier.
My house is near Crystal Lake. Does that change anything?
It can. Being close to Crystal Lake usually means a higher water table and a longer wet season under the floor, so drainage and a properly sealed barrier matter more here than they would further from it.
I already have plastic down there. Is that enough?
Often not. Most of the sheeting we find has been laid loose, has torn, has pulled away from the walls or was never sealed at the seams. Unsealed, incomplete sheeting lets ground moisture track around and through it, and performs much closer to bare soil than to a finished barrier.
Vapor barrier near Port Royal
We cover Port Royal and the surrounding part of Beaufort County. The same service in nearby towns:
Other crawl space services in Port Royal
Crawl Space Water Removal in Port Royal
Standing water pumped and extracted from under the house, then the saturated material taken out.
Crawl Space Structural Drying in Port Royal
Joists, girders and subfloor dried back to a measured target with air movers and dehumidification.
Crawl Space Mold Remediation in Port Royal
Contained removal of mold-affected material, HEPA cleaning, and the moisture source shut off.
Crawl Space Drainage and Sump Pump Installation in Port Royal
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 Port Royal
Rotted joists, girders, rim joists and subfloor sections repaired or replaced once the space is dry.
Or see everything we cover in our Port Royal service area, and how this service works across the state on the South Carolina page.
Crawl Space Vapor Barrier Installation in Port Royal
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.