
Boardex & Exterior Boards
Boardex & Exterior Boards
Moisture-resistant sheathing boards used behind facade finishes on light-gauge steel and timber-framed exterior walls.
- Type
- Moisture-resistant gypsum-core sheathing board
- Standard
- TS EN 15283-1 (glass-mat gypsum board)
- Facing
- Glass-fibre mat
- Thickness
- Common: 12.5 mm
Description
Exterior boards are screw-fixed to light-gauge steel or timber framing to form the sheathing layer of an external wall. Boardex and similar products typically combine a moisture-resistant gypsum core with glass-fibre mat facings instead of paper. This makes them far more resistant to moisture and mould than standard plasterboard.
The boards serve as a substrate behind facade finishes such as composite panels, timber, PVC siding and brick-effect cladding. They are also used for soffits, balcony ceilings and semi-open areas. They cut with standard drywall tools and are fixed with screws.
Kemer Demir keeps Boardex and other exterior boards in its covered warehouse alongside plasterboard and OSB. They are supplied wholesale and retail together with the galvanized profiles and screws used in light steel framing. Contact us for current products and sizes.
Technical Details
| Type | Moisture-resistant gypsum-core sheathing board |
|---|---|
| Standard | TS EN 15283-1 (glass-mat gypsum board) |
| Facing | Glass-fibre mat |
| Thickness | Common: 12.5 mm |
| Width | Common: 1200 mm |
| Fixing | Screw-fixed to steel or timber framing |
Key Features
- Moisture-resistant core
- Glass-fibre mat facings that resist mould
- Screw-fixed to light-gauge steel or timber frames
- Cuts with standard drywall tools
- Suitable substrate for a range of facade finishes
Applications
- Light-gauge steel and timber-framed exterior walls
- Behind composite, timber and PVC cladding
- Brick and stone-effect cladding
- Soffits and balcony ceilings
- Prefabricated and modular buildings
Related Products

OSB Board
Oriented strand board for roof sheathing, subfloors and wall panels. Supplied wholesale and retail from our warehouse in Kemer.
View Details
Film-Faced Plywood
Plywood faced on both sides with phenolic film for concrete formwork. It gives a smooth concrete finish, strikes cleanly and can be reused over several pours.
View Details
Gypsum Plasterboard
Gypsum board for suspended ceilings, partitions and wall linings, in standard (white), moisture-resistant (green) and fire-resistant (pink) types.
View Details
Cement-Bonded Particle Board
Building board made from wood particles bonded with cement, resistant to moisture, fire and rot. Used for floors, walls and facades, indoors and out.
View Details
Get a fast quote for your project
Tell us the product, size and quantity you need — we will get back to you with availability and pricing as soon as possible.