DENSGLASS &
Exterior Sheathing
Moisture-Resistant Exterior Protection Across the GTA.
Rozi Contractors installs DensGlass and exterior sheathing systems for commercial projects, multi-residential buildings, and custom homes across the GTA. DensGlass is a fiberglass-mat-faced exterior gypsum sheathing that delivers superior moisture, mold, and weather resistance — ideal for Ontario's demanding climate.
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WHAT IS DENSGLASS?
DensGlass is a high-performance exterior gypsum sheathing product with a fiberglass mat face instead of paper. This makes it inherently resistant to moisture, mold, and mildew — key concerns in Ontario's climate where freeze-thaw cycles and driving rain can degrade traditional paper-faced products.
Used as a building envelope substrate beneath exterior cladding systems, DensGlass provides a stable, weather-resistant surface for air barriers, water-resistive barriers, and exterior insulation. It's the preferred exterior sheathing choice for commercial projects, low-rise and mid-rise builds across the GTA.
SHEATHING PRODUCTS WE INSTALL
We install a range of exterior sheathing products tailored to your project's specific performance requirements — all meeting Ontario Building Code standards.
DensGlass Gold
The industry-standard fiberglass-mat exterior gypsum sheathing. Superior moisture and mold resistance for exterior wall assemblies.
DensGlass Fireguard
Fire-rated exterior sheathing for projects requiring enhanced fire performance in exterior wall and shaft wall assemblies.
DensElement Barrier System
An integrated water-resistive and air barrier sheathing that eliminates the need for a separate fluid-applied membrane.
Exterior Gypsum Sheathing
Standard exterior gypsum board for general sheathing applications where paper-faced products are specified.
Glass-Mat Roof Board
Fiberglass-mat-faced cover board for commercial roof assemblies, providing a stable surface for membrane roofing systems.
Shaft Wall Liner
Specialized sheathing for elevator shafts, stairwells, and mechanical shafts requiring fire-rated enclosures.
SHEATHING FOR EVERY BUILD TYPE
Custom Homes
For custom home builds, DensGlass provides a moisture-resistant substrate beneath exterior cladding — protecting the building envelope from Ontario's harsh weather.
View Residential Pro-Pack
Sub-Divisions
For subdivision developments, DensGlass provides consistent moisture-resistant sheathing across multiple homes — protecting the building envelope at scale.
View Residential Pro-Pack
Multi-Unit & Low-Rise
Multi-residential buildings require durable, code-compliant exterior sheathing across large surface areas. We handle high-volume DensGlass installation with rapid turnaround.
View Multi-Res Pro-Pack
Commercial & Industrial
Commercial projects demand high-performance exterior sheathing that withstands severe weather exposure during construction and throughout the building's life.
View Commercial Pro-PackWHY BUILDERS TRUST
ROZI CONTRACTORS.
As a single-source drywall and insulation provider, we handle interior and exterior sheathing under one contract — eliminating coordination headaches.
Combined Drywall & Insulation
Interior drywall, exterior sheathing, and insulation — all coordinated under one provider.
WSIB Compliant & Fully Insured
Every crew member is covered with comprehensive insurance and active WSIB clearance.
Ontario Building Code Expertise
Our teams understand Ontario Building Code requirements for exterior wall assemblies and fire ratings.
Serving the Entire GTA
We service Toronto and the entire Greater Toronto Area with professional sheathing services.
COMBINE DRYWALL &
INSULATION WITH OUR
PRO-PACK
MASSIVE TIME
SAVINGS
BUDGET
CONTROL
FLAWLESS
QUALITY
PEACE OF
MIND
ONE POINT OF
CONTACT
PREMIUM
FINISH
LEVERAGE OUR ALL-IN-ONE PACKAGE FOR UNMATCHED SPEED AND BUDGET CONTROL.
The Pro-Pack is our flagship, literally complete drywall and insulation package provided in one uninterrupted service. Instead of hiring separate contractors for framing, insulation, boarding, and taping, we handle the entire assembly from start to finish.
This results in massive time and cost savings. It keeps your general contractors significantly ahead of schedule. An all-in-one service directly translates to total control over time, flawless quality consistency, and an unbreakable budget.
Ready For Exterior Sheathing?
Let Rozi Contractors handle your DensGlass and exterior sheathing. Ontario Building Code compliant, delivered on time, and backed by our quality guarantee.
