The Marmox Tile Backer Board Installation Bundle is an all-in-one multiboard installation pack that contains the everything you need to install tile backer boards for a variety of scenarious. It includes the industry standard Marmox Multiboard in a variety of thicknesses, plastic washers in a variety of pack sizes, and stainless steel screws in a range of lengths.
What's in the Marmox Tile Backer Board Installation Bundle?
How to install Marmox Multiboards on a timber frame.
Preparation: For a stud wall build with 600mm centres, use 20mm Marmox Multiboard or thicker. 10mm and 12.5mm thick boards require studs at 300mm centres. All board edges should be supported.
Fixing:Use a tile backer board screws and washers every 300mm on each stud. The washers prevent pitting in the board surface. When a stud is at 600mm centres, use 20 rows of 5 fixings. At 300mm centres, use 3 rows of 5 fixings.
Tiling: Be sure to tape all the joints with Marmox Reinforcing scrim tape, except in wet areas where Marmox Self-Adhesive Waterproof tape should be used. The boards are now ready to be tiled.
Plastering: Seal boards together using a bead of Multibond prior to scrim-taping, do not use Waterproof tape under plaster. The boards are now ready to be plastered.
How to install Marmox Multiboards on a solid wall - screw fixed
Preparation: Measure Marmox Multiboards and cut to size. Tile backer boards are very easy to cut with a knife or saw.
Fixing:Marmox Multiboards can be fixed to solid wall with screws and washers at every 300mm. Alternatively use Tile Backer Board Fixing Dowels for ease.
Tiling: Be sure to tape all the joints with Marmox Reinforcing scrim tape, except in wet areas where Marmox Self-Adhesive Waterproof tape should be used. The boards are now ready to be tiled.
Plastering: Seal boards together using a bead of Multibond prior to scrim-taping, do not use Waterproof tape under plaster. The boards are now ready to be plastered.
How to install Marmox Multiboards on a solid wall - adhesive fixed
Preparation: Measure Marmox Multiboards and cut to size. Tile backer boards are very easy to cut with a knife or saw.
Fixing: Use a 6/8mm trowel to comb adhesive over the who surface of the Marmox Multiboard. For uneven walls increase to a 20mm trowel. Push firmly onto wall. Ideally stagger the joints if you can.
Tiling: Be sure to tape all the joints with Marmox Reinforcing scrim tape, except in wet areas where Marmox Self-Adhesive Waterproof tape should be used. The boards are now ready to be tiled.
Plastering: Seal boards together using a bead of Multibond prior to scrim-taping, do not use Waterproof tape under plaster. The boards are now ready to be plastered.
How to install Marmox Multiboards on a solid wall - dot & dab fixed
Preparation: Create 5 fixing holes through the Marmox Multiboard. 12.5mm board thickness is the minimum thickness for this fixing method.
Fixing: Put a dab of tile adhesive over the holes positions. Offer the board up to the wall, push firmly, and then use a spirit level to get everything level. Once your tile adhesive has dried, drill the holes out. Place the dowl in through the board into the wall and then hammer in the pin.
Tiling: Be sure to tape all the joints with Marmox Reinforcing scrim tape, except in wet areas where Marmox Self-Adhesive Waterproof tape should be used. The boards are now ready to be tiled.
Plastering: Seal boards together using a bead of Multibond prior to scrim-taping, do not use Waterproof tape under plaster. The boards are now ready to be plastered.
How to install Marmox Multiboards on floors - screw fixed
Preparation: Lay your boards out on the floor and cut them to size easily using a blade or saw.
Fixing: For screw fixing use a screw and washer at every 300mm.
Tiling: Be sure to tape all the joints with Marmox Reinforcing scrim tape, except in wet areas where Marmox Self-Adhesive Waterproof tape should be used. The boards are now ready to be tiled.
Plastering: Seal boards together using a bead of Multibond prior to scrim-taping, do not use Waterproof tape under plaster. The boards are now ready to be plastered.
How to install Marmox Multiboards on floors - adhesive fixed
Preparation: Use a floor trowel to comb the adhesive onto the floor.
Fixing: Lay the Marmox Multiboard down onto the adhesive and push firmly. You can use Marmox Multibond for further waterproofing or in really wet areas use Marmox Self Adhesive Waterproof Tape.
Tiling: Be sure to tape all the joints with Marmox Reinforcing scrim tape, except in wet areas where Marmox Self-Adhesive Waterproof tape should be used. The boards are now ready to be tiled.
Plastering: Seal boards together using a bead of Multibond prior to scrim-taping, do not use Waterproof tape under plaster. The boards are now ready to be plastered.
Click the links below to see the technical specifications and user guides for the items in this Marmox Tile Backer Board Installation Bundle.
- Marmox Tile Backer Boards
- Click here to see Internal & External Tile Backer Board Specifications
- Click here to see Internal Plastering & External Rendering of Insulation Board Specifications
- Click here to see Multiboard Fitting Instructions
- Click here to see the Marmox Multiboard Declaration of Performance (UK)
- Click here to see the Marmox Multiboard Declaration of Performance (EU)
- Click here to see information on Insulating with Marmox Multiboard
- Click here to see the Marmox Multiboard Data Sheet
- Click here to see the Marmox Brochure with Fitting Instructions
- Click here to see the Marmox Multiboard BBA Certificate
- Click here to see the Marmox Multiboard Guarantee for Goods
- Click here to see the Marmox Multiboard Safety Data Sheet
Delivery times are Monday - Friday (excluding Bank Holidays) from 7:30am - 6:00pm. Most deliveries leave on Express Delivery for 1 - 3 working day delivery service. A 'working day' is Monday to Friday, excluding bank holidays. Weekends and bank holidays do not count as working days.
FREE 1-3 working day delivery service for all orders over £375 (excluding VAT). See our Delivery Page for further details.
Long Length Items like tile trims will incur a £9.99 delivery surcharge in line with our couriers. This surcharge is automatically added onto your order at the checkout stage.
Special 1 - 2 Day Shipping occurs when an item is sent to you direct from the manufacturer, usually on a next day service. This usually incurs a flat rate shipping charge of £15.99.
Click and Collect
We offer a free Click and Collect service on all stocked items at our main warehouse. Click and Collect orders are available for collection from 08:30am to 16:00pm Monday to Friday. Please allow 2 hours from your order to when you come and collect. Please wait for and bring your order confirmation paperwork with you. Collection address is Tile Fix Direct, Unit 1 Hollybush Lane, Ash Vale, GU11 2PX.
Delivery Damages
It's important that you indicate the damages on the delivery note when you sign for the goods. Notify Tile Fix Direct by emailing us or calling our advice line on 0333 320 04 24 if there are any damages or irregularities to your order within 24 hours of delivery.
Frequently asked questions about Marmox Boards
What is Marmox Board?
Marmox Boards are waterproofing tile backer boards made from CFC and XPS extruded polystyrene foam bonded with layers of fibreglass reinforced polymer cement. The surface of reinforced polymer concrete is perfect for tile adhesion, waterproofing or plastering. Marmox Boards are difficult to bend, bow or distort compared to plasterboard.
Are Marmox Boards waterproof?
Marmox Multiboards are completely waterproof and impermeable to water. They are commonly used to protect walls and floors in wet rooms, bathrooms and kitchens.
Is Marmox Board Fireproof?
Generally speaking yes. Marmox boards are rated as is class “O”, indicating that they generally not burn except in circumstances where they are in contact with flammable materials or extremely high temperatures in excess of 350°C.
What is Marmox Board made of?
Marmox Insulation Boards are made of extruded polystyrene. This high performance, reinforced dry-lining insulation boards made of waterproof extruded polystyrene, each side being faced with fibreglass mesh embedded into a waterproof cement polymer mortar.
Can you cut Marmox Board?
Marmox boards are very easy to cut to size using a standard working knife.
What thickness board is sufficient to make a difference to heat loss?
To meet current building regulations very thick layers are required. In our experience, using at least a 20mm thick Marmox Multiboard will make a noticeable reduction to the heat loss and provide insulation.
How many fixings are needed per board?
Without using any adhesive, a short board will need two rows of five (10) or if the board is 12.5mm or 10mm thick, three rows of four (12). A long board will require 15 fixings; three rows of five.
Used with adhesive (the dot and dab method), five fixings per short board and nine fixings per long are recommended.
On floors, the tile adhesive method should be used whenever possible. If the only practical option is mechanical fixing, screws and washers should be used every 30cm – that is 15 per board.
Can I plaster directly onto Marmox Boards?
Yes! With no priming required either! The surface of the boards contains additives to reduce the porosity and stop the possible formation of ettringite salts which can sometimes occur when a gypsum plaster is applied to a concrete surface. The boards therefore do not need to be primed..
How many boards will I need?
Small boards are 0.6m x 1.25m - that's three quarters of a square metre so you need to divide the area you want by three quarters and that's the number of 'short boards' you require.
