Mold Removal — Draper, UT Physical Remediation Under S520 Protocols
Mold removal is the physical work at the heart of every Condition 3 mold response: containment construction, HEPA-filtered air scrubbing, PPE-donned entry, mold-contaminated substrate removal, decontamination of remaining surfaces, and drying to prevent regrowth. Every step follows ANSI/IICRC S520-2024 protocols. This page documents what actually happens during EcoRestore’s mold removal work across Draper, Sandy, South Jordan, Riverton, Bluffdale, and White City, and the equipment, materials, and techniques that make S520-compliant removal effective.
Containment — Before Removal Begins
Barrier Construction
Physical separation of the mold-affected area from the rest of the property is the first step. 6-mil polyethylene sheeting spans from floor to ceiling, sealed with duct tape at every edge and every penetration (electrical outlets, HVAC registers, doorways). Doorways are constructed with double-flap poly access maintaining pressure integrity while allowing technician movement. Every seam is taped, every edge is sealed, every gap is closed.
Negative Pressure
Air scrubber inside the containment pulls air through HEPA filters (99.97% at 0.3 microns) and discharges filtered air to exterior via flexible duct through a window or wall opening. The scrubber creates negative pressure inside the containment, verified with a digital manometer showing pressure differential of −5 pascals relative to adjacent unaffected areas. Negative pressure ensures any airborne spores stay inside the containment and get filtered rather than escaping. Manometer readings are logged multiple times daily during active removal.
Air Change Rate
HEPA-filtered air scrubbing achieves 3–6 air changes per hour (ACH) inside the containment. Higher ACH for larger contamination extents and higher spore concentrations, lower ACH for smaller localized work. Fleet: Phoenix Guardian R series (500 and 1000 CFM units). Containment volume determines scrubber sizing — a 400 sq ft basement containment with 8-ft ceilings has 3,200 cubic feet volume, requiring 160–320 CFM of scrubbing for 3–6 ACH. In practice we oversize to accommodate demolition activity that increases airborne spore concentration.
PPE — Every Entry
PPE requirements scale with contamination extent per S520 Section 8:
Level 1 PPE (Condition 2 or Small Condition 3 under 100 sq ft)
- N95 or better disposable respirator
- Nitrile gloves
- Safety glasses
- Standard work clothing (changed after each shift)
Level 2 PPE (Condition 3 Between 100–1,000 sq ft)
- Half-face air-purifying respirator with P100 particulate filters
- Nitrile gloves
- Safety glasses or eye protection
- Disposable Tyvek coveralls
- Chemical-resistant boot covers
Level 3 PPE (Condition 3 Over 1,000 sq ft, Immunocompromised Occupant Areas, or Confirmed Stachybotrys)
- Full-face APR with P100 filters, or supplied-air respirator
- Disposable Tyvek coveralls with hood
- Duct-taped wrist, ankle, and hood-mask interfaces
- Double nitrile gloves
- Chemical-resistant boots
PPE donning happens outside the containment; doffing at a designated decontamination zone with proper disposal of contaminated items. All disposable PPE goes to Category 3 waste stream (bagged, sealed, labeled) whether the underlying loss originated from sewage or not — mold-contaminated PPE presents its own contamination risk.
Physical Removal — The Actual Work
Porous Material Removal
S520 protocols require removal of porous materials with visible mold growth or where growth extends beyond surface treatment capability:
- Drywall — removed to at least 24 inches above visible mold line, with additional removal if moisture readings show cavity moisture higher up the wall
- Insulation — fiberglass batt, cellulose, and open-cell spray foam removed entirely from any wall cavity with mold contamination
- Carpet and padding — removed and disposed if contaminated; underlying subfloor assessed for saturation and salvageability
- Wood trim and baseboard — removed if contamination penetrated the wood
- Cabinetry base sections — removed if water damage produced mold growth in cabinet construction
- Ceiling tiles or acoustic panels — removed if contaminated
Removed materials are wrapped in 6-mil poly bags, sealed with tape, labeled as mold waste, and moved directly to the disposal vehicle without crossing unaffected areas of the property. Removal happens with minimal disturbance to reduce airborne spore generation during work; HEPA vacuuming during and after removal captures spores that inevitably become airborne.
Semi-Porous and Non-Porous Material Treatment
Materials that can be decontaminated in place rather than removed:
- Solid hardwood flooring — often savable through aggressive antimicrobial application and drying if the mold hasn’t penetrated deep into the wood
- Tile and grout — savable with hospital-grade antimicrobial application to grout lines and physical scrubbing
- Concrete — savable with detergent scrubbing followed by antimicrobial application
- Wall framing (2×4 or 2×6 studs) — savable if mold is superficial; HEPA vacuum first, then antimicrobial application, then encapsulant sealer if wood shows persistent staining
- Subfloor plywood or OSB — savable if mold is superficial; deep saturation typically requires removal
- Metal fixtures and finishes — wiped clean with detergent, then antimicrobial
Every salvage decision is documented per material with photographic record. Post-decontamination verification (visual inspection plus surface sampling if warranted) confirms whether the treatment succeeded before proceeding.
HEPA Vacuuming
Every surface inside the containment gets HEPA vacuumed before and after antimicrobial application. HEPA vacuums use filters rated 99.97% efficient at 0.3 microns — the same filtration efficiency as HEPA air scrubbers, but on a portable vacuum unit for direct surface cleaning. Fleet: Nikro dual-motor HEPA vacuums (industry-standard for mold remediation), plus specialty attachments for wall cavities, ceiling corners, and detail work. HEPA vacuuming removes settled spores and debris that would otherwise become airborne during post-remediation activities.
Antimicrobial Application
EPA-registered antimicrobial applied to all remaining surfaces inside the containment. EcoRestore uses:
- Fiberlock ShockWave (EPA Reg #73232-5) — primary antimicrobial for mold response; quaternary ammonium disinfectant with mold-specific label claims
- Concrobium Mold Control (EPA Reg #82552-1) — mold-specific antimicrobial without quaternary ammonium, suitable for occupants with quat sensitivities
- Benefect Botanical (EPA Reg #74771-1) — thymol-based alternative for chemical-sensitive occupants
Application follows product label directions: dwell time (typically 10 minutes for quaternary ammonium products), coverage rate, PPE requirements, and post-application ventilation. Each application is logged with product name, EPA registration number, lot number, dilution ratio, and dwell time verification.
Post-Removal Drying
After physical removal and antimicrobial application, the affected area requires drying to bring moisture content back to EMC parity with unaffected reference materials. Mold requires moisture to grow; if the underlying moisture source isn’t eliminated and remaining materials aren’t dried, mold returns within weeks to months. Drying follows the same S500 protocols used in water damage response: air movers, LGR dehumidification sized to psychrometric grain load, daily moisture monitoring, exit condition of EMC parity within 2 percentage points of reference readings. See the structural drying page for detailed drying protocols.
Verification Before Reconstruction
Post-remediation verification (PRV) testing by Wasatch Environmental (Utah-licensed industrial hygienist) confirms that removal succeeded before reconstruction begins. Testing includes visual inspection, moisture verification, and airborne mold spore sampling with Zefon Air-O-Cell cassettes. Clearance requires all tests within acceptable parameters. Failed clearance triggers additional remediation at contractor expense and re-testing. Only after documented clearance does containment come down and reconstruction begin.
Frequently Asked Questions
- What is HEPA filtration and why is it critical for mold removal?
- HEPA (High Efficiency Particulate Air) is a filtration standard defined as 99.97% capture efficiency at 0.3 microns particle size. That’s smaller than most mold spores (typically 2–100 microns) and small enough to capture spore fragments that could otherwise pass through lesser filters. HEPA filtration is critical for mold removal because physical demolition of mold-contaminated materials aerosolizes spores — disturbing moldy drywall or insulation releases thousands of spores per cubic foot of air. Without HEPA-filtered air scrubbing, those spores spread through the property during demolition, contaminating unaffected areas and requiring larger scope remediation. HEPA filtration is not optional under S520 protocols — it’s a required containment component. Fleet: Phoenix Guardian R (500 and 1000 CFM units) for air scrubbing, Nikro dual-motor HEPA vacuums for surface work.
- Why does EcoRestore remove drywall to 24 inches above visible mold line?
- Mold typically grows beyond the visible surface indication. When mold appears on interior drywall surface at a specific line (indicating past water intrusion up to that level), the actual mold growth typically extends 6–18 inches above the visible line in the wall cavity (paper backing, gypsum core, and framing side of the drywall). Removing to just the visible line leaves contaminated material in place, producing recurrence. S520 protocols require removal beyond the visible line — standard practice is at least 24 inches, extended higher when moisture readings confirm cavity moisture at greater height. On some responses (water damage over 6 months old, cavity moisture confirmed at ceiling height), we remove drywall to the ceiling to capture the full contamination extent. Written removal boundaries are established during assessment before demolition begins, with photographic documentation of the specific removal line and supporting evidence.
- Can EcoRestore remove mold from HVAC ductwork?
- Yes, but coordinated with a licensed HVAC contractor rather than performed by us directly. Restoration contractors can’t legally perform HVAC service work in Utah — that requires Utah DOPL HVAC license, which is a separate license category from restoration. Our approach: identify the mold contamination in the HVAC system during initial assessment, coordinate with a licensed HVAC contractor for duct cleaning and coil cleaning or replacement, and perform mold remediation on the surrounding building spaces in parallel. Duct cleaning specifically involves mechanical brushing and HEPA vacuuming inside the ductwork, plus antimicrobial application on interior duct surfaces. Coil cleaning involves accessing the air handler, removing debris, and applying appropriate cleaners. Post-work, the HVAC contractor typically provides documentation of cleaning; we handle the building-side mold response and verification testing. HVAC decontamination typically runs $3,500–$14,000 depending on duct scope and coil condition.
- What happens if mold is discovered inside wall cavities during a water damage response?
- Written scope amendment to add mold remediation to the existing water damage response, with corresponding notification to the insurance carrier and adjuster approval before proceeding. Mold discovered during drying is common when prior water damage went undried or was undried by another contractor. Documentation includes: thermal imaging of the affected wall showing cavity moisture, photographic record of the mold discovery, moisture readings supporting the mold growth, and written Condition 3 determination. Scope amendment typically adds $4,000–$18,000 to a mid-size water damage response depending on the mold extent. Adjuster approval is usually straightforward when supported by proper documentation — mold from a covered water event is typically covered up to the policy’s mold sublimit ($1,000–$10,000 standard, higher with mold buyup endorsement). If mold extends beyond sublimit coverage, the homeowner pays the difference out of pocket. This is why our initial moisture and cavity assessment on Day 1 matters: catching cavity mold at initial documentation avoids mid-response supplements and provides best cost outcome.
- How long does mold removal typically take?
- Timeline varies significantly by scope. Small localized removal (30–80 sq ft, single room): active removal 1–2 days, drying 3–5 days, PRV clearance 2–5 days, reconstruction 3–7 days. Total 9–19 days from initial containment to sign-off. Mid-scope removal (100–400 sq ft, cavity mold): active removal 3–6 days, drying 5–10 days, PRV clearance 3–7 days, reconstruction 10–25 days. Total 3–7 weeks. Large removal (500–1,200 sq ft, multi-room): active removal 5–12 days, drying 7–14 days, PRV clearance 5–10 days, reconstruction 3–8 weeks. Total 6–14 weeks. The removal itself is often the shortest phase — drying and verification testing take longer, and reconstruction is typically the longest phase. Timeline compression is possible on removal (more technicians deployed) but not on drying (physics-limited) or PRV (lab turnaround). Timeline extension happens if PRV fails and additional remediation is required.
Contact EcoRestore Water Damage & Restoration
Our office at 11629 S 700 E #220 sits half a mile east of I-15 exit 291, in the geographic center of south Salt Lake County. If you’re comparing mold removal contractors and want to understand whether the proposed scope actually follows S520 protocols — or you have visible mold that needs removal — call and we’ll walk through the specifics.
- Emergency Line (24/7): (385) 289-3588
- Address: 11629 S 700 E #220, Draper, UT 84020
- Email: info@ecorestorewaterdamagerestoration.xyz
- Utah DOPL Restoration Contractor License: #12783456-5501
- IICRC Firm Certification: #216847
Office Hours
- Emergency Service: 24 hours a day, 7 days a week
- Office Staff: Monday – Saturday, 9:00 AM – 5:00 PM
- Closed: Sundays and State/Federal Holidays (emergency line always active)