Use: Sliding Window & Door • System depth: 190 mm


VEKA SOFTLINE ISS190 sliding window and door system is the world’s most innovative uPVC sliding system solution. In a joint development with ROTO Germany, custom-made sliding hardware from ROTO INOWA was incorporated in the development of the ISS190 system, allowing an all-around the sash sealing by EPDM/silicone gaskets. The ISS190 reaches performance levels for water, wind and air tightness comparable to a Tilt & Turn window. Active locking points on all 4 sides of the sash including the mullion, securely and strongly arrest the sash to the frames when the window or door is closed. Sliding sashes slide in-line, allowing secure, easy and smooth operation even when high-performance heavy glazing is used. The ISS190 is the perfect solution for sliding windows and doors, when wind resistance, air and water tightness must exceed what Lift & Slide solutions can deliver. Ever increasing insulation values for windows and doors require thick and heavy glass limiting the use of parallel sliding constructions by making their handling inconvenient. The solution is the in-line sliding design of the ISS190.

  • System Uf 1.3 W/m2.K (including steel reinforcements)
  • System depth 190mm – 7 chambers
  • Glazing width range from 22mm – 52mm
  • Glazing depth 25mm
  • Available in profile wall thickness “Class A”
  • Joint development between VEKA and ROTO for the ROTO hardware system INOWA
  • Low-energy-house ready

U-Value of 3.0×2.2m door

Unit: W/m2·K

Glass Thickness

  • 47 mm

Glass Configuration

  • 5ssLow-E+16Ar+5ssLow-E+16Ar+5 (warm edge)

Ug Value

  • 0.78 W/m2·K

Color Options



Moss green

Dark oak

Golden oak


Dark grey



Dark grey