Owens Corning Crawl Space Encapsulation & Vapor Barrier Nationwide

Owens Corning Crawl Space Encapsulation & Vapor Barrier in Schertz: What to Know First

As an independent Owens Corning service provider in Schertz, we handle crawl space encapsulation and vapor barrier work for homeowners with Owens Corning insulation systems, typically completing jobs in one to two days with a written price locked before any work starts. Most Schertz crawl space encapsulation jobs run between $2,800 and $6,500 depending on square footage, existing moisture damage, and whether we’re pairing a vapor barrier with full wall insulation. This page is for homeowners in Schertz who already have Owens Corning products below their floorboards and need to know whether their system can be salvaged, what it’ll actually cost, and who can do the work without voiding whatever warranty coverage remains. Call (830) 402-5240 for a free estimate with a written scope.

Call (830) 402-5240

How Owens Corning Products Fail - and How We Fix Them

• Owens Corning Foamular NGX 250 below-grade boards wick moisture when the dimple mat drains slow. In Schertz’s clay-heavy soils off FM 3009, we’ve pulled saturated NGX 250 boards that lost their compressive strength after two wet seasons. We remove the compromised boards, install a proper gravel bed and French drain if needed, then replace with new Foamular sealed at seams with Owens Corning joint tape or switch to a closed-cell spray foam application depending on the crawl space height.
• Ecotouch Pink Fiberglas batts sag when relative humidity stays above 70% for weeks. Schertz’s spring and fall humidity spikes, especially in older homes near Cibolo Creek without adequate ground sealing, turn pink batts into moisture sponges that compress against floor joists. We remove the sodden batts, treat for mold if present, then install a 6-mil or thicker polyethylene vapor barrier on the ground before re-insulating with a moisture-resistant product.
• ProPink LooseFill insulation in vented crawl spaces drifts with every pressure change. When Schertz homes have leaky ductwork in the crawl space, the pressure differential pulls loose fill away from rim joists and into corners. We vacuum out the drifted material, seal the duct leaks with mastic, then reinstall with proper baffling or switch to a dense-pack approach that won’t migrate.
• Owens Corning MoistureLoc vapor barriers degrade at seam tape when installed over rough grade. The 6-mil standard barrier works fine on prepared ground, but we’ve found taped seams failing within three years in Schertz crawl spaces where the original contractor skipped the gravel cap or didn’t smooth protruding roots. We prep the grade properly, then install a 12-mil reinforced liner with double-sealed seams and mechanical fasteners at walls.
• CodeBord insulated sheathing on crawl space walls delaminates at the foil face with ground-level moisture splash. In Schertz homes with negative grade toward the foundation, seasonal runoff hits the bottom edge of CodeBord and peels the reflective facing. We address the drainage first, then replace with a drainage mat and rigid foam assembly that keeps the insulation above the splash zone.

Our Owens Corning Crawl Space Encapsulation & Vapor Barrier Process

1. 1
   Pre-work inspection and moisture mapping. We document existing Owens Corning products, identify failure points, and use a moisture meter on floor joists and subfloor. You get photos before we touch anything.
2. 2
   Blower-door test if the crawl space connects to conditioned space. A pressurization reading that shows, in one number, how much air the building envelope is losing through the crawl space perimeter and access points.
3. 3
   Written price and scope delivered. Under Haven Standard Clause 1: flat price, written scope, written warranty before anyone lifts a tool. No work starts without your signature.
4. 4
   Air sealing first, then moisture control. We seal rim joists, sill plates, and penetrations with appropriate materials, install drainage and vapor barrier, then replace or add insulation. Seal the leaks first. Then insulate. The attic doesn’t care how thick the insulation is if the air is still moving through it, and the crawl space works the same way.
5. 5
   Post-install documentation. Documented Photo Record of completed work, depth measurements, and if applicable, a second blower-door test showing the change. Your printed thermal-imaging summary and photo log go in a folder you keep.
6. 6
   365-Day Done Right Promise activation. If it’s not done right, we make it right. The written warranty is already in your hands.

What Owens Corning Crawl Space Encapsulation & Vapor Barrier Costs in Schertz

Most crawl space encapsulation jobs in Schertz run between $2,800 and $6,500. Here’s what moves you within that range:

• Small crawl space (800-1,200 sq ft), vapor barrier only, no active moisture damage: $2,800-$3,800
• Mid-size crawl space (1,200-2,000 sq ft), vapor barrier plus wall insulation with Owens Corning Foamular or equivalent: $4,200-$5,500
• Large or complex crawl space (2,000+ sq ft), full encapsulation with dehumidifier prep, multiple access points, or mold remediation: $5,500-$6,500+

What pushes price up: standing water requiring a sump pit and pump, extensive Owens Corning product removal and disposal, structural repairs to rotted joists, or converting a vented crawl space to sealed assembly. What doesn’t change the price: we don’t charge extra for the Documented Photo Record or the written scope. Call (830) 402-5240 for an exact quote on your crawl space - estimates are free, and we provide a Free Second Opinion on any written estimate you’ve already received.

Why Schertz Homeowners Call Topside Attic Insulation Schertz for Owens Corning Work

We’ve been working the Schertz corridor for several years now, including jobs in the Sedona subdivision off FM 1518 where summer ground temperatures and clay soil expansion create unique crawl space stress. Wes Okafor and our crew know Owens Corning’s product lines from hands-on removal and replacement, not from a distributor brochure. We also service Reflectix and other major brands, so if your crawl space has mixed materials or a previous owner’s DIY installation, we can assess the whole assembly without manufacturer bias. Every job gets background-checked, uniformed technicians; calls answered by a live person 24/7; and the Haven Standard from start to finish. Over 9,000 homes sealed and insulated since 2016, every one with a written price before work started and a documented record when the crew left.

FAQs