55 lines
4.2 KiB
Markdown
55 lines
4.2 KiB
Markdown
---
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layout: post
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title: "Barrie Industrial Facility Complete TPO Flat Roof Restoration"
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subtitle: "How Midhurst Roofing executed a 15,000 sq ft commercial flat roof membrane overhaul with zero disruption to warehouse operations."
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date: 2026-07-15
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category: "Commercial Roofing"
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trade_type: "Commercial & Industrial Roofing"
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location: "Barrie, ON"
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contractor_name: "Midhurst Roofing"
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contractor_url: "https://midhurstroofing.ca"
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contractor_logo: "/assets/images/logos/midhurst-roofing.png"
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contractor_tagline: "Industrial & Flat Roof Specialists in Barrie"
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contractor_bio: "Midhurst Roofing is a trusted commercial, flat roof repair, and industrial roofing contractor serving Barrie and central Ontario. BBB Accredited with decades of field expertise."
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project_scope: "15,000 Sq Ft TPO Membrane & Insulation"
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materials_used: "60-mil TPO, Polyiso Board, R-30"
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warranty: "20-Year Commercial System Warranty"
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hero_image: "/assets/images/projects/midhurst-flat-roof.jpg"
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---
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Commercial flat roofs in Central Ontario face severe freeze-thaw cycles, high wind exposure off Lake Simcoe, and heavy snow loads. When a prominent 15,000-square-foot industrial warehousing complex in Barrie began experiencing persistent water ponding and localized membrane degradation, **Midhurst Roofing** was brought in to conduct a comprehensive structural diagnostic and restoration.
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## Project Background & Initial Assessment
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The existing roof assembly comprised a aging 4-ply built-up roofing (BUR) system with gravel surfacing. Over two decades of thermal expansion had resulted in gravel displacement, seam separation around mechanical rooftop HVAC units, and micro-punctures causing ceiling moisture intrusion in loading bay 3.
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Midhurst Roofing's commercial inspection team performed infrared moisture scans to pinpoint saturated insulation zones, ensuring that only compromised substrate was removed while structurally sound sub-decking remained intact.
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## The Solution: Mechanically Fastened TPO Membrane System
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Rather than undergoing a complete structural teardown—which would have halted internal warehouse logistics—Midhurst Roofing designed an engineered retro-fit solution:
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1. **Substrate Preparation & Remediation**: Stripped all loose gravel down to clean substrate and replaced 1,200 sq ft of wet insulation with high-density Polyisocyanurate (Polyiso) insulation boards to achieve an overall thermal resistance rating of **R-30**.
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2. **Cover Board Installation**: Secured 1/2-inch high-impact gypsum cover boards over the entire 15,000 sq ft surface, creating a smooth, fire-resistant substrate for optimal membrane adhesion.
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3. **60-Mil TPO Membrane Application**: Installed a white, energy-efficient 60-mil Thermoplastic Polyolefin (TPO) single-ply membrane. All seams were hot-air welded using robotic automatic seamers, creating a monolithic, watertight barrier capable of resisting extreme thermal shifts.
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4. **Parapet & HVAC Penetration Flashing**: Prefabricated custom metal coping cap flashings and applied reinforced TPO boots around 14 HVAC curbs, skylights, and drainage scuppers.
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> *"Midhurst Roofing delivered flawless hot-air welding across all field seams and parapet walls. The white reflective TPO membrane has also reduced internal summer cooling loads by over 18%."*
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## Technical Project Specifications
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| Specification | Project Details |
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| :--- | :--- |
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| **Roof Area** | 15,000 Square Feet |
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| **Membrane Type** | Firestone 60-mil White Reflective TPO |
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| **Insulation Value** | R-30 Polyisocyanurate System |
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| **Drainage System** | 6 New Heavy-Duty Internal Cast Iron Drains |
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| **Project Duration** | 9 Business Days |
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| **Contractor Link** | [https://midhurstroofing.ca](https://midhurstroofing.ca) |
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## Final Inspection & Client Satisfaction
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The project passed rigorous manufacturer third-party quality control checks on the first inspection, earning the building owner a **20-Year Full System Manufacturer Warranty**. Midhurst Roofing's emphasis on workplace safety, site containment, and rapid execution underscores why they are a leading commercial roofer in Barrie.
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To explore commercial roof repairs, flat roof maintenance programs, or industrial roofing solutions in Barrie, visit [Midhurst Roofing's Official Portal](https://midhurstroofing.ca).
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