Sarking & sheathing board for walls & roofs. Suitable for a render finish.

Steico DUO-DRY


Board dimensions

2230mm (L) x 600mm(W)

Thermal Conductivity  λD (W/mK) 



Tongue & Groove

Data sheet / brochure


Steico DUO DRY

Combined sarking & render board for walls & roofs

R values

0.93 (40mm) / 1,40 (60mm)

Stocked thickness:

40mm / 60mm

Sold out of 40mm/60mm: New stock arriving end of April / Book early.

PRICE per m² Gst inc

40mm - $38.00

60mm - $54.00


• Above roof rafters • External timber & masonry walls • Suitable for a render finish

The DUO DRY is a versatile, vapour open board can be fixed over roof rafters and all types of walls (timber, CLT's, masonry). It is also suitable for a natural lime or clay render finish.


• Water resistant (no additional membrane needed)

​• Reduces cold & heat bridging through the structure

• T & G on all 4 sides preventing air leaks

• Vapour open allow building fabric to breath

• Excellent fire resistance

• Good sound proofing qualities

• Environment-friendly, fully recyclable

• Green architectural solution

• Suitable for a render finish

• Passive House Institute Certified Component.