Here we provide simple tips & instructions on floor preparation for subfloors that require an installation of floor self leveling compounds to achieve a flatness to lay a new flooring.
Firstly, What is a subfloor?
A subfloor is the foundation, the rest of the property is built on. On wood-frame floors, the subflooring provides a continuous structural surface over the floor joists. In basements and in homes with slab-on-grade foundations, the subfloor may simply be concrete.
How to check the subfloor and prepare areas that require the floor to be levelled?
Using a straight edge or laser level to survey the subfloor for any deviations of un-evenness that requires correction. Install packers or floor heights to the subfloor areas that require floor self levelling compounds, this will allow an easier install with no guess work.
How to prepare the subfloor before installing floor self levelling compounds?
The subfloor must be sound, free from cracks, dry, clean and free from any materials which would impair adhesion.
Thoroughly vacuum to remove loose material and dust.
Test the subfloor according to applicable standards and report any deficiencies.
Brush, abrade, grind or shot-blast any weak surface sections or areas which will not accept adhesion.
According to the type and condition of the subfloor, use a suitable floor primer.
Allow the floor primer to dry thoroughly before the installation of floor self levelling.
"Failure to prepare is preparing to fail"
How to install floor self levelling compounds?
Pour the correct litres of cold clean water into a clean container (a minimum 25Litre bucket) refer to the floor self leveling bag for litres required. Sprinkle in the the floor self levelling compound contents into the bucket whilst stirring briskly and mix to a thick-fluid for approximately up to 3minutes achieving a lump-free consistency. Use a drill or mixer fitted with a Mixing Paddle. IMPORTANT to not mix it too thinly.
Pour the mixture on the area to be applied of the subfloor, then spread the material uniformly to the required thickness using a toothed rake or flat trowel. It is the next step to remove entranced air by a particle spike roller but not always required if the surface floor is primed accordingly with the right bonding agent floor primer.
Check the Drying time on the floor self levelling bags to plan your installation of floor covering type. Abrading using 40-60 grit sanding paper improves both the surface quality and the absorbency but not always required. Poor air-flow and lower temperatures will significantly affect drying times as well the season it is being installed.
Lightly grind or sand any res-due of the floor leveller that require it for a smooth flat surface, more particular for installation of patch filling.
What floor primer do you recommend?
We use and sell a universal floor primer that is compatible for all subfloor types that are either porous or non-porous.
What product do I need to purchase to install floor self levelling compounds over a concrete subfloor?
We sell & recommend the Cemimax DL55 indoor floor self levelling compounds for concrete subfloors. With a dry & walk time of approx 2-3 hours making it a superior product for fast applications of subfloor remedial works in preparation of floor coverings to be installed.
What product do I need to purchase to install floor self levelling compounds over a timber, tiles, plywood, yellow tongue (non-porous) subfloor?
We sell & recommend the Cemimax DL59 Premium indoor/outdoor floor self levelling compounds for tile, timber, plywood, yellow tongue & concrete subfloors. This product is also suitable for outdoor/external areas including concrete. With a dry & walk time of approx 2-3 hours making it a superior product for fast applications of subfloor remedial works in preparation of floor coverings to be installed.
Do you have a product suitable to floor self level over wet areas & external outdoor concrete?
Yes, we recommend our Cemimax DL59 Premium indoor/outdoor floor self levelling compounds for applications of wet areas like bathrooms, basements, carparks & outdoor areas such as balconies. With a dry & walk time of approx 2-3 hours making it a superior product for fast applications of subfloor remedial works in preparation of floor coverings to be installed or used as a finished flooring.
Conclusion, floor self levelling compounds.
Our motto "Failure to prepare is preparing to fail". Make sure you follow the Australian guidelines for subfloor flatness tolerance and most importantly don't cut corners! chat to our friendly flooring expert team today.