Larmmin Rubber Flooring
Larmmin Rubber Flooring should only be installed for interiors and in temperatures between 15°C and 30°C .
1. Larmmin is to be acclimatised in the installation area within the recommended temperature range 48 hours prior to installation
2. The finished Larmmin installation should be protected from exposure to direct sunlight for 48 hours during & after installation with the ambient temperature maintained for at least 24 hours.
Roughness or unevenness of the subfloor will transmit through to the new floor, resulting in an unsightly floor surface and cause excessive wear on high spots or indentation on low spots.
Suitable subfloors are: concrete, smart board, & cement sheeting
General Subfloor Requirements
installation should be carried out on a flat, clean, dry and solid subfloor free from cracks and holes.
A level subfloor is defined as:
- Smoothness: when a straightedge 150mm long is placed at any position at rest at two points on the surface, a gap shall be no greater than 1.0mm below the straightedge.
- Planeness: when a straightedge 2000mm long is placed at rest at two point 2000mm apart on the surface, no part of the surface shall be more than 4mm below the straightedge.
- Soundness: the surface shall be without cracks, crazing, dust, rain damage, spalling, efflorescence or blistering
New & existing Concrete Subfloor Preparation
- The areas should be carefully prepared and free from any dirt, cement laitance, cleaning products, or any other foreign material.
- Screed may need to be applied as follows:
- Cracks to be filled before applying a coating or screed.
- Construction joints should be treated the same as cracks.
- Apply a coating of a self levelling screed if the subfloor is not level as defined above.
- New concrete subfloors must be dry and fully cured before apply a screed. In this regard follow the instructions provided by the screed manufacturer.
- A moisture test must be carried out. Nothing that when measurements taken at 40% depth of the substrate do not exceed 75% relative humidity.
- A pH test must be carried out. Nothing that pH values cannot exceed 10.
Underlay & underlayment
- Larmmin can also be installed over Standard smart board underlay & Fibre cement sheet underlay
- In wet areas smart board are suitable. In these areas use fibre cement sheeting.
- smart board underlay must be installed in accordance Larmmin’s instruction construction adhesive be used as recommended by the smart board manufacturer.
CONDITIONING OF Larmmin Tiles
On Site Storage
Before installation the Larmmin Tiles shall be allowed to condition within or near the installation area for a period not less than 24 hours at an ambient temperature range of between 15°C to 28°C nothing the installation temperature should also conform to this temperature band.
In areas that do not have temperature control methods in place and the ambient temperature is below 15°C heating devices such as electric heat blowers shall be used. LPG gas blowers are not suitable due to the humidity they produce.
Air Conditioned Areas
Where air conditioning is installed, no underlay or Larmmin Tiles shall be laid on the subfloor until the air conditioning has been in operation at the normal expected operating temperature (usually 22°C) for at least 7 days. This temperature will be maintained during installation and for 48 hours thereafter.
Check the consignment of Larmmin tiles for colour and batch uniformity. Also check dimensional accuracy.
Complaints of defects or replacement of material is only possible for product which has not been installed.
Any additional costs incurred will not be reimbursed by Larmmin.
It is strongly recommended to dry lay Larmmin tiles over the entire area to be covered and cut the border tiles, door openings, pipe holes etc before fixing.
For the Hammertone with chips & DIY ranges directional arrows will be found on the underside of the tiles. It is essential these directional arrows be followed. Failure to do so will invalidate the warranty.
Use only a 2 part Polyurethane or 2 part Epoxy adhesive.
To ensure full compliance with the Larmmin Warranty use only adhesive fully tested and authorized for use with Larmmin Rubber Flooring.
Please be aware that even though this is a two part epoxy it is not a substitute for correct damp proofing and will not resist hydrostatic pressure.
After mixing the adhesive empty the container onto the subfloor to maximize open time.
Spread using a trowel having 1.6mm notches. Do not use badly worn trowels.
The material should be laid into the wet film of adhesive. As the adhesive does not have any initial tack should any part of the tile not tending to lay flat the ensure it does so by applying weights until at least a partial cure has been reached.
Immediately after laying, roll the Larmmin Tiles with a 68kg roller lengthwise and crosswise in order to remove trapped air and ensure an even distribution. Repeat the process after 1-2 hours at which time the adhesive will have developed legs.
Surplus adhesive including surface deposits must be removed immediately.
All exposed edges of rubber shall be protected by means of diminishing strips or other suitable mouldings.
There is not to be any foot traffic for 12 hours or heavy foot traffic for 24 hours. Heavy equipment shall be kept off the installation for 72 hours.
Do not wash the floor or apply a sealer for 48 hours after installation.
It is crucial that for 48 hours following installation the area shall be shielded from direct sunlight and that the ambient temperature prior to and during installation be maintained for at least 24 hours and a general ambient temperature be maintained for a further 24 hours thereafter.
It may be noted that curing time is temperature dependant. But as a general rule the initial bond sets up within 12 hours with full cure reached in 7 days. Over this 7 days period the bond gradually increases in strength.
Larmmin Luxury Vinyl Plank and Tile
Storage & Handling Storage
- When storing products, maintain an appropriate temperature of between 10 degrees C and 35 degrees C. Rolls should be stored in an upright position. Careful attention should be paid to the possibility of rolls falling down. Secure completely to prevent accidents.
- Do not expose products to direct sunlight and/or moisture. Note: Subfloor preparation and installation must be carried out. These instructions are not intended to replace this standard.
These rolls are heavy! Use a forklift for movement or loading/unloading. If necessary, two people should move the product in order to avoid physical injury or damage. When moving products with a forklift, make sure that product is not damaged by the forks
Preparation Before Installing
- Remove existing floor coverings ensuring attention is paid to any site, local, state or federal regulations and/or manufacturer’s instructions.
- Moisture testing should be conducted.
- Ensure the subfloor is clean. Remove all traces of dust, stains, paint, oil, grease, asphalt, varnish, wax, adhesive, and other contaminants.
- Any cracks, grooves, holes and depressions should be levelled using a cementitious levelling agent.
- Flooring materials and adhesives ideally should be maintained at a temperature between 20°C and 30°C for at least 48 hours before and after installation.
- Be sure to store flooring materials upright. Do not lay flooring down for extended periods of time. 3. When sheet flooring materials have been stored at cold temperatures, it is necessary to open the sheet flooring, roll out overnight for conditioning before installation.
Identification of Product & Rough Cutting
- If installation requires more than one roll of flooring product, be sure to select those with successive roll numbers with the same lot number.
- Examine the installation site to determine the number of rolls for installation required. Be sure to avoid placing seams in any entrance ways.
- Rough cut the flooring and allow it to be sufficiently conditioned to the working environment. Primary Installation Primary installation according to the Knife Cutting Method or Scribe Cutting Method.
KNIFE CUTTING METHOD
- Spread sheet flooring products over subfloor.
- Portions along the wall surface and edge should be sufficiently adhered to the surface and cut in a ‘V’ shape from the corner. Next, cut flooring to be slightly longer
SCRIBE CUTTING METHOD
- Spread sheet flooring products over the subfloor.
- Place ends of sheet flooring up the wall surface slightly and spread balance over subfloor with certain distance from the front wall (about 4 inches).
- Point a scribing tool toward the front wall and slowly move at a right angle to the flooring.
- Use a hook- shaped knife to cut the flooring along the line that has been marked by the Scribing Tool. Use knife at a slant to cut more back side than the surface. Finally, set the flooring toward the front wall.
- In order to cut the flooring at both wall sides, draw a line along the edge with a chalk and mark “+ line” on the subfloor and the flooring.
- Move and spread the flooring until one edge of the flooring rising up the wall.
- Accurately measure the distances of the line at a right angle to the subfloor and the line on the flooring moved. Draw a line on the sheet flooring with a scribing tool along the wall where the flooring goes down to the subfloor.
- Cut the flooring along the drawn line with the hookshaped knife and set the flooring toward the wall.
- Cut the flooring rising up the opposite wall according to the same method.
Larmmin recommends the use of Larmmin Hardgrip adhesive to install the Durable, Supreme, Bright and Multi ranges of Sheet Vinyl. Hardgrip should be spread evenly using a “V1”notched spreader with notches 1.6mm deep x 1.6mm wide x 1.6mm spacing. Apply over an area that can be covered within the open time of the adhesive. This open time will vary according to the prevailing site conditions including temperature, humidity and air flow. The adhesive manufacturer’s instructions regarding open time and initial tack off times should be followed. Allow the adhesive to gain some initial tack which will be generally be around 10 to 15 minutes. The sheet vinyl should be placed into
wet adhesive film which will allow transfer to the backing and the trowel marks to flatten when rolled.
- While preventing movement of the flooring sheets, turn up at least half of the sheet.
- Snap a chalk line along the flooring folded part, which plays a role of guide for installation of the second half.
- Apply the specified adhesive and spread with the specified trowel.
- When the adhesive has full adhesive strength, carefully lay the flooring products while not leaving any air bubbles. Rolling with a 45kg (100 lb) or more 3-section roller is recommended. This rolling process removes air bubbles and contributes to complete bonding. If necessary, use a hand roller for corners.
- After adhesion of the first half, repeat the same procedures for the remaining half.
Installation of Second and Remaining Rolls
- Spread the second roll of flooring product over the subfloor while appropriately overlapping the embossed line on the initially installed flooring’s edge and the embossing line on the second edge.
- Conduct wall-side cutting according to the previously described procedures.
- Apply the adhesive.
- Install the other flooring sheets according to steps 2 and 3. Note : In spite of constant manufacturing process, colour difference within different batches is possible. To avoid differences in designs and colours, Use only one batch for one single room. For all sheet- type product, the reverse installation is strongly recommended to get best appearance, especially for products with solid pattern.
Note : For Multi, the edges don’t have to be cut during installation, since they come out vertically and neatly at the stage of production. So, be sure not to overlap the first roll when installing the second roll of Multi, but to stick two rolls directly side by side.
Finishing & Miscellaneous
- Sweep the floor.
- Remove all trash and scraps.
- Wait 48 hours after installation before cleaning the floor. Remove any stained materials with a damp mop.
- Move furniture or other objects into the newly installed area 48 hours after installation. Use the hard board or cart to prevent any damage to the flooring.
- For heavy furniture or objects, use the pad to prevent any damage to the flooring.