Underlay with integrated moisture protection, ideal for underfloor heating
Do you want to protect your feet from cold and your floor from rising moisture? Then the SELITPRO® HD 2 mm AquaStop is the perfect choice. It has integrated moisture protection and can be installed excellently on underfloor heating systems due to its low heat transmission. It also increases the load-bearing capacity of your floor and reduces walking sound.
Heavy-duty film with mineral filling - Ideal for underfloor heating
Before installation, please note: check the base in accordance with CEN/TS 14472 and ensure that the quality of the base is suitable for proper processing. In general, the base should be clean, level, dry, resistant to tension and compression and should not contain any substances such as plasticisers, solvents or other diffusing substances. It must be ensured that the base is in a state of equilibrium humidity and that the CM value is below 2.0 % (for cement screed) or below 0.5 % (for anhydrite screed and anhydrite flowing screed). The processing instructions of the flooring manufacturer are to be observed as binding specifications.
Cleaning the surface
Cleaning the surface
Step 1 Clean the surface thoroughly with a brush or vacuum cleaner. Remove any adhesive and paint residues completely.
Laying out the first panel
Laying out the first panel
Step 2 Lay the first panel of the underlay flush with the wall over the entire width of the room. Make sure that the aluminium side is at the top.
Masking joints
Masking joints
Step 3 To protect against moisture, seal possible joints with SELITstop® Aluminium-Foil Sealing Tape to make the joints vapour-tight.
Masking the wall connection area
Masking the wall connection area
Step 4 To protect the wall connection area from moisture, we recommend SELITstop® Moulding Protection Belt.
Installing the flooring
Installing the flooring
Step 5 Lay the flooring in the same orientation as the underlay. Do not place any load on the underlay. If necessary, place the board under your knees/feet to distribute the load.
Finishing the installation
Finishing the installation
Step 6 Repeat steps 2 – 5 until the entire floor has been installed. Seal all joints with the Aluminium-Foil Sealing Tape to make them vapour-tight.
Technicaldata(according to EN 16354)
Punctual conformability (PC)
up to 0.5 mm
Compressive strength (CS)
≥ 90 kPa
Compressive creep (CC)
≥ 25 kPa
Dynamic load (DL25)
≥ 250,000 cycles
Resistance to large ball (RLB)
≥ 50 cm
Water vapour diffusion resistance (SD)
≥ 100 m
Thermal resistance (R)
~ 0.010 m²K/W
Impact sound reduction (IS)
up to 18 dB
Reaction to fire (RTF)
Efl
*Suitability for underfloor heating
Yes, if flooring R ≤ 0,14 m²K/W (e.g. laminate up to approx. 12 mm, wood flooring up to approx. 14 mm)
Meets the minimum requirements of the EPLF and MMFA (Group 1)
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SELITPRO HD 2 mm AquaStop Produktinformationsblatt