APPLICATION AREA
ProVent was created especially for the use on concrete subfloors but it is good for most other applications with floating floors including over the water heated floors.
THICKNESS OF FLOORING
ProVent may be used under laminated and engineered floating floors with the thickness range of 6mm to 16mm.
ProVent IS NOT suggested for the use with the flooring that requires underlays with the maximum of 2 mm thickness.
FAST & EASY INSTALLATION
ProVent underlay reduces dramatically the time of flooring installation.
ProVent comes with an integrated extra vapour barrier.
You can lay ProVent at one go unlike with a conventional underlay that requires the additional installation of the vapour barrier.
Installation guidelines
Important
Notes
Lay ProVent with the HDPE membrane up and the profiled/ribbed side down. The profiled side of ProVent should face the surface of concrete subfloor in order to enable the ventilation system.
A reminder THIS SIDE UP is printed on the HDPE membrane. No vapour barrier may be used under ProVent because it would close the air channels and stop the ventilation process.
CLEAN properly the subfloor surface, following the instructions of the producer of parquet or laminate. ProVent provides a compensation of the micro-roughness in the floor base (maximum 2mm within a distance of 2m).
LAY ProVent with the air channels to the direction of the laying of flooring panels. For better ventilation lay ProVent with air channels perpendicular to the longest size of the room.
Lay the FIRST ROW of ProVent with the printed side up, the wavy side down and the HDPE overlap towards the wall. Leave about 1cm space to the wall. Cut off or turn up the HDPE overlap of the first row of ProVent.
With the overlap of the NEXT ROW of ProVent cover the edge of previous row and spread it even. Make sure that there are no sharp objects on the surface of ProVent underlay to avoid damaging the HDPE film.
LAY PARQUET OR LAMINATE according to the instructions of the producer of the respective product. We recommend to spread out only one row of ProVent at the time, then install the flooring and, after finishing the first section of floor, continue with the next ProVent row.
OPTIONAL: create an air gap. The common practice of floor laying creates enough space for air exchange under ProVent. However you may wish to create even better conditions for the ventilation. It is enough to leave just a 2-3mm gap between the surface of parquet or laminate and the floor lath for better air exchange. There are two main ways to create the air gap (see in the drawing). You can leave the gap either between the flooring and the floor lath (option A) or between the floor lath and the wall (option B). See the drawing here.