From sheathing treatment to exhaust fan rerouting and ventilation correction — the full scope of attic mold remediation in Markham, IL.
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Attic Mold Assessment & Ventilation Survey
Our Markham, IL attic specialists enter your attic with moisture meters, a thermal camera, and a ventilation calculation worksheet. We measure sheathing moisture content, identify the extent of fungal growth, assess soffit vent count and placement, check ridge vent condition, and look for exhaust fans terminating inside the attic. Full findings documented before any remediation scope is proposed.
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Roof Deck Sheathing Mold Treatment
Loose surface mold removed by HEPA vacuuming and wire brush. EPA fungicide applied followed by penetrating borate solution. Sections with advanced degradation are flagged for sheathing replacement.
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Bathroom & Kitchen Exhaust Fan Rerouting
Improperly terminated fans rerouted to exterior via insulated flex duct to gable, soffit, or roof termination cap. Sealed at both ends, properly insulated to prevent condensation in the duct.
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Soffit Vent Addition & Ridge Vent Assessment
Where soffit vent area is inadequate relative to attic square footage, additional vents are added to improve cross-flow to the ridge. Blocked soffit vents — a common issue in Markham, IL attics with blown-in insulation covering the eave bays — are cleared and baffled to maintain airflow pathway.
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Attic Insulation Removal Where Contaminated
Contaminated insulation — whether wet from roof infiltration or heavily spore-laden — is removed under containment and replaced with fresh material. Insulation removal is scoped based on assessment findings, not assumed in every job.
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Post-Remediation Clearance & Moisture Verification
Post-treatment sheathing moisture content re-check plus independent post-remediation air sampling from within the attic and from living spaces below confirms that treatment and ventilation correction achieved the intended outcome. Written clearance report suitable for insurance and real estate use in Markham, IL.
