TUISKU-P snow and rain cover

TUISKU-P is a snow and rain cover designed to prevent snow and water from entering intake air vents. TUISKU-P is a surface mounted snow and rain cover with vertical vanes.

Direction of vanes

Vertical vanes

Installation method

Surface mounting

Surface treatment

Corrosivity category C4


Galvanized steel + painting, Marine aluminium + painting, Stainless steel + painting, Acid resistant steel + painting, Corten steel, Copper, Brass

Select the right size louvre by airflow



  • Galvanized steel (ZnFe)
  • Painted (Ma)
  • Stainless (RFe)
  • Acid resistant (HFe)
  • Sheet copper (Cu)

Larger than 2200×2000 mm units are made of two or more sections joined together.

Individually dimensioned (non-standard) sizes are possible. Please confirm the available size options from Climecon’s technical support.

The surface treatment of TUISKU fulfills the corrosivity category C4 that lasts well in even the most challenging climate conditions.

For surface-mounted snow and rain covers, the duct connection is supplied separately.


Cover dimensions must be min 100 mm larger than the wall opening on all sides.

TUISKU snow and rain covers prevent snow and water from getting into the ducts. TUISKU covers are tested by VTT.
The recommended face velocity is 0.7 m/s.

TUISKU has a slanted bottom with a water drainage hole. TUISKU-PS, TUISKU-V, TUISKU-P and TUISKU-VS are dimensioned at least 100 mm wider and higher than the hole in the wall.

The TUISKU P and V models take in air through the front surface of the grille. TUISKU PS and VS models take in air through the front and sides of the grille. We also recommend water drainage for the air intake chamber, as well as heating.

Speed up installation

Multi-part TUISKU snow and rain covers with vertical vanes are attached from the front using an innovative installation concept, and the installer does not have to go behind the grilles. The renewed, front-attached structure is standard in Climecon’s TUISKU snow and rain covers intended for multi-part installation. The new structure does not affect the performance values ​​of the louvres and their external dimensions remain the same.

100% water insulation

Air flow    Water flow
qv v qr qd qro qdo E Class
m3/s  m/s  l/h  l/h  (l/h)/m2 (l/h)/m2 %
 0.00 0.00 48.00 0.000 75.00 0.000 100.00  A
 0.64  1.00 48.00 0.000 75.00 0.000 100.00  A
 1.28  2.00  48.00  0.000  75.00  0.000  100.00  A

qv Air flow, dm³/s
v Face velocity
qr Water flow, l/h
qro Water flow, l/h
qd Water entered, (l/h)/m2
qdo Water entered, (l/h)/m2
E Water separation rate, %

Product code

TUISKU P 1000×1000 ZnFe L MA RR40 KLV 800×800
1 2


1 = Product
2 = PS = Vertical vanes, with side vanes, surface model
P = Vertical vanes, no side vanes, surface model
V = Horizontal vanes, no side vanes, surface model
VS = Horizontal vanes, with side vanes, surface model
PU = Vertical vanes, flush-mounted model
VU = Horizontal vanes, flush-mounted model
3 = Size (L x H) mm
4 =Material
ZnFe  galvanized steel
RFe stainless steel
HFe acid resistant steel
Cu sheet copper
5 = Installation frame
6 = Painting
7 = Colour according to RR or RAL colour chart
8 = Rear connection, Note! only flush-mounted models
9 = 
Rear connection size (A x B) mm, defined by designer

TUISKU-P Dimensions

See dimensions on Tuisku.X.


The smallest available special size or special scale of the TUISKU snow cover is 300×400 mm.