Remediation
Moldy belongings: what can be saved and how (S520)
In plain English
Contents remediation covers property that isn't part of the structure or fixed to it: evaluating what can be restored, packing and handling it, choosing cleaning methods, and checking the result. The S520 says the remediator should make these decisions together with the owner and other interested parties.
Whether an item can be saved depends on its condition, what it's made of, how complicated it is (hidden voids where mold can get trapped), the cost to clean it, its replacement cost, and its other value: sentimental, legal, artistic, cultural or historical. Each item is restored (cleaned to Condition 1 and returned), disposed of (the owner doesn't want it or cleaning costs more than it's worth), or preserved (irreplaceable but can't reach Condition 1, so set aside for further evaluation). If the inspection can't tell whether contents are Condition 2 or 3, an IEP should assess them, and any sampling should cover a cross-section of item types and be done by an independent IEP.
Before anything moves, it's inspected and inventoried, its condition and value documented and photographed, and the client agrees in writing to anything being thrown away. The inventory lists each item's description, existing defects, quality and condition (2 or 3) with a label for each item, box or group, and the customer signs to accept it. Packing should limit exposure, avoid spreading contamination, prevent breakage, avoid trapping moisture inside, keep Condition 3 items apart from everything else, and clean or re-wrap the outside of packages before they leave the decontamination area.
Cleaning aims to physically remove the mold and odor and return items to Condition 1, on site (indoors or out) or off site, without spreading contamination; workers near contaminated contents "shall" wear PPE. Where to clean depends on how many items there are, their value, security, the length of the job, storage space and ease of moving. Cleaning off site or outdoors frees the house for structural work; outdoors, the S520 says to stay clear of air intakes, windows, doors and people. For HEPA vacuuming it recommends going over the item at least three times in a cross pattern; air washing belongs outdoors or in a proper airflow chamber; abrasive methods (cleansers, polishes, sanding, blasting) need care, source capture and more PPE. Appearance work, including stain removal, comes only after the item is back to Condition 1, and expected damage should be raised with the client early.
Textiles, furnishings and paper with only Condition 2 contamination can sometimes be returned to Condition 1 with standard cleaning, following the manufacturer and standards like the S500, S100 (carpet) and S300 (upholstery). Absorbent items that support growth or odors (clothing, upholstery, leather, taxidermy, some fine art) should be examined closely for unrestorable damage. With Condition 3, the remediator should consider how deep the growth went (between fabric fibers, into wood grain) and damage like etching, staining and decay. Replacement may be recommended when cleaning would cost more than the item is worth; for valuable items with unrestorable damage, preservation, such as enclosing or laminating, is an option.
High-value and irreplaceable items can get extraordinary cleaning or specialty services: art conservation, paper and document preservation (including currency and certificates), rugs, antiques, electronics and machinery, firearms, data recovery and musical instruments. Even these may not get an item back to Condition 1, and an IEP may be needed to judge it.
Items that can't be saved are disposed of only with the owner's and other parties' written permission, after being photographed and listed. If an owner wants an unrestored item back, it should be cleaned as much as possible, wrapped or boxed, labeled as contaminated, and documented. Waste goes out in durable, tear-resistant bags or wrap, sealed and cleaned or double-wrapped before it leaves, and is stored securely if it can't go right away. Disposal laws "shall" be followed, though most places have no mold-specific rules, and the S520 says mold waste should not be labeled as a biohazard.
Cleaned items get the same final check as the building: an item can be considered clean when the contamination is gone, surfaces are visibly free of dust and debris (a white or black cloth wipe counts), there's no microbial odor, and remaining materials are dry. If not, it's cleaned again or classed as unrestorable. Controls stay in place until that check is done, or as the IEP directs if there will be independent verification.
Key points
- Restore, dispose or preserve, decided with the owner.
- Signed inventory before pack-out; written permission before anything is thrown out.
- Keep Condition 3 items apart; don't trap moisture in packing.
- HEPA vacuum at least three passes in a cross pattern.
- Condition 3: check how deep growth went into fibers or wood.
- Mold waste: sealed heavy bags, not labeled as biohazard.
Official text
This topic is covered in our own words because the standard behind it is copyrighted; we cite it below rather than reproduce it.
Citations
- IICRC S520, ANSI/IICRC S520 Standard for Professional Mold Remediation — Secs. 11–11.3.4, contents remediation, restorability, removal, inventory and packing, cleaning location and methods, appearance enhancement, pp. 55–57. Best practice
- IICRC S520, ANSI/IICRC S520 Standard for Professional Mold Remediation — Secs. 11.3.5–11.8, Condition 2 and 3 contents, high-value items, unrestorable items, disposal, post-remediation evaluation and verification, pp. 58–60. Best practice