Since 1967 we've been providing drywall to professional contractors.
Kenroc has drywall for all your projects. We'll deliver it to the 75th floor of an office tower or to a basement. The magic cladding that protects us from the ravages of fire, helps control sound transmission and mould and provides a smooth surface for paint or wallpaper for all your commercial and residential projects.
We offer a full range of reliable drywall and drywall finishing solutions for professional trades that make installations faster and simpler, no matter the size, complexity, or location of the project.back to top
Drywall is a versatile building material used to create or cover walls and ceilings. It is also referred to as "wallboard", or by the brand name "Sheetrock". Drywall has a gypsum core with coarse paper on the back and smooth paper on the finish side. Several types have been developed for specific applications.
Standard drywall is the most common type of drywall used in homes, it's suitable for most rooms. Although not made for the bathroom or kitchen, it's used in bedrooms, living rooms, hallways, and even some basements. This type of drywall is the most affordable option and comes in different sizes and thicknesses.
Fire-resistant gypsum board is a form of drywall that helps prevent the spread of flames across a home or business. Gypsum is approximately 21% chemically combined water, which greatly contributes to its effectiveness as a fire-resistive barrier. When gypsum drywall is exposed to fire, the water is slowly released as steam, effectively slowing heat transmission. It also contains glass fibre reinforcement and other additives within its specially formulated gypsum core to help it hold up longer to fire exposure.
Ideal for utility rooms, basements, furnace rooms, wood stove rooms, and attached ceilings and walls near living areas.
For commercial buildings, fire-rated drywall will usually be a requirement for most of the building's ceilings and walls for fire partitions and assemblies, a staple for safety.
There are two types of fire-resistant drywall:
Made from gypsum that has noncombustible glass fibres, the material used for this product increases its fire rating to a minimum of an hour and is usually installed in projects such as area separation firewalls, shaft walls, and stairwell walls. This type of drywall is available in different sizes and thicknesses.
Type C drywall is known as the more durable version of Type X as there are more glass fibres in this product as well as more vermiculite components, giving it a fire resistance of 2-4 hours. This type of drywall is available in different sizes and thicknesses.
Difference Between Type X and Type C
Although Type X and Type C might only seem slightly different, it is still important to understand the differences between the two, especially when it comes to uses and applications and fire resistance. The primary differences include the following:
- Type C comes in 1/2" or 5/8"
- Type X meets international standards
- Type C is a premium version of Type X
- Type X has longer structural life
- Type C is better to use when installed horizontally, making it great for ceiling projects.
Moisture and Mould-Resistant Drywall
Mould and moisture-resistant gypsum boards, commonly referred to as "green board” or "purple board,” have different types of backers (also known as mat or facers) that surround the core. Rather than the usual paper, the core receives a treated paper or fibreglass mat which resists water vapour migration into the gypsum interior. Fibreglass, while repelling moisture, also discourages fungal growth. This type of drywall is available in different sizes and thicknesses.
Designed for use on interior walls and ceilings in standard residential, commercial, and institutional applications where enhanced mould resistance is preferred, this type of drywall is ideal for bathrooms, utility rooms, laundry rooms, kitchens, basements, crawl spaces, work-out rooms and any space where the humidity tends to be higher than the rest of the building.
Acoustical gypsum board is for any application that requires enhanced soundproofing and sound control. Ideal for interior walls in hotels, restaurants, hospitals, schools and even in home theatres, music rooms, and bedrooms. Whether protecting an inside room from outside noise or noise-proofing an inside space, acoustic drywall is for wall assemblies and spaces requiring high sound transmission class (STC) performance.
STC is a measure of how well a wall or building partition reduces sound from travelling through the building. This type of drywall is available in different sizes and thicknesses.
Impact-Resistant drywall is for interior walls and ceilings in residential, commercial or institutional applications that require high-impact durability and enhanced moisture and mould resistance. This drywall contains fibreglass mesh reinforcement within a specially formulated, dense, fire-resistant, non-combustible Type X gypsum core, reinforced by glass fibre and enclosed in a moisture and mould-resistant face and back paper.
Providing the highest level of protection for impact and abuse areas in high-traffic applications, this type of drywall is ideal for hospital corridors, patient rooms, classrooms, gymnasiums, utility rooms, airport terminals and public buildings.
Designed for interior ceilings where there is a demand for sag resistance, this drywall provides a lightweight, low-cost option to finish ceilings. The unique lightweight formulation resists sag in ceiling applications and is ideal for sprayed texture ceilings.
These boards are up to 30% lighter than standard gypsum boards and can be used for both interior ceilings and walls in residential and commercial applications. The lightweight board is easy to score and snap and enables quicker and easier installation, reducing strain and fatigue for the contractor.
These special performance panels are manufactured with a thick, noncombustible Type X core wrapped in either heavy-duty paper facers or sturdy fibreglass mats. Most shaftliner panels also feature enhanced mould and moisture resistance.
This drywall is also an excellent material choice for area separation fire walls to provide better multi-tenant fire safety as well as an added barrier to unwanted noise transmission between occupied spaces.
Uses include elevator shafts, stairwells, utility shafts, ventilation shafts, chutes and waste chutes.
Made of a gypsum core and faced with either paper or glass mat, these products are easy to install, and provide a weather-resistant barrier for exterior walls that keep buildings safe from harsh elements. An evolution from traditional wood boards, our sheathing products have moisture and mould-resistant properties to help protect the structure, ensuring safe and long-lasting builds for your residential and commercial needs.
Sheathing treated core is a water-repellent gypsum sheathing for application to the outside of building framing members and serves as the base for the exterior wall finish. It can be used as attachments to the outside of exterior wall framing as a water-resistant underlayment for various siding materials and also in fire-resistance-rated designs.
Glass mat sheathing is made with cementitious glass mat facers that are embedded into a water-resistant gypsum core. This provides a surface that is ideal for long-term protection against weather exposure. Strong, lightweight, and flexible, this product allows for bending to curved surfaces. It also cuts like regular gypsum board, but with minimal skin irritation due to the embedded glass mat.
Backer board, also called a cementitious backer unit or CBU, is commonly used to form a base for ceramic tile. Unlike plywood and other wood substrates that can warp, backer board is hard and flat, so it won't buckle. Its stability allows you to adhere tile using a thinset mortar, making it relatively easy to create a tile surface that's level and consistent. Backer board also stands up to moisture, so it's a better choice than drywall for damp areas like bathrooms and laundry rooms.
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We carry contractor-preferred accessories and tools you need for every drywall project including:
- Anchoring & Fastening
- Drywall Trim - Metal & Vinyl
- Joint Fillers & Tape
- Plaster products
- Drywall Textures & Primers
- Ladders & Scaffolding
- Stilts & Accessories
- Boarding Tools
- Taping Tools & Parts
- How do I install gypsum board in the winter?
- How do I repair joint ridging?
- How to fix nail pops in drywall?
- How do I minimize potential mold growth during construction?
- How do I assess damage to drywall?
- What is the difference between regular and type X gypsum board?
- What sound ratings can I achieve with certain wall assemblies?
- Mold vs Mildew: when to worry and when to clean.
- CertainTeed Learning Centre - Drywall
We're providing links to the vendor's website to give you the most up-to-date information for these products.