EIFS (Exterior Insulation and Finish System) and ETICS (External Thermal Composite Insulation System) are the dominant technologies for new-build and renovation facade insulation across Europe and the Balkans. The fiberglass mesh embedded in the base coat provides the primary crack resistance and structural continuity of the entire system. Selecting the correct mesh type and installing it correctly determines whether the facade lasts 20+ years or fails within 5.
Prime the insulation board surface with ETICS-compatible primer if required by mortar manufacturer
Apply a scratch coat of base coat mortar 3–4mm thick to the insulation board surface
Unroll fiberglass mesh and press into the wet base coat using a notched trowel, working top to bottom
Overlap mesh joints minimum 100mm horizontally and vertically — no gaps at joints
Apply diagonal 45° reinforcement patches at all window and door corners before applying full sheet mesh
Allow first coat to set until firm (typically 24 hours), then apply second base coat 1–2mm to fully embed mesh
Allow to cure fully before applying primer coat and finish render
Alkaline-resistant coating survives cement-based mortar environment for 25+ years
CE marking confirms compliance with EN 13496 — required for certified ETICS systems
Fiberglass is non-conductive — no thermal bridge through the insulation layer
Flexible mesh drapes over insulation boards, shaped profiles, and corners
5×5mm 160gr for commercial or high-stress applications; 4×4mm 145gr for standard residential
Using standard (non-alkaline-resistant) fiberglass cloth — will degrade within 2 years in cement mortar
Skipping diagonal corner reinforcement — causes diagonal cracking from window corners within 1–2 seasons
Insufficient mortar depth — mesh must be fully embedded, not surface-applied
No mesh overlap at joints — creates weak line where cracking initiates
Using wire mesh in EIFS — creates thermal bridge and corrodes in alkaline environment
What mesh weight for standard residential EIFS?
4×4mm 145gr/m² is the minimum for standard residential EIFS. For commercial, renovation of older buildings, or areas subject to impact, use 5×5mm 160gr/m².
Does the mesh need to be CE certified for ETICS?
Yes. Certified ETICS systems require CE-marked mesh to comply with EOTA Technical Guidelines and EN 13496. Bautex mesh carries CE marking.
What is the correct mesh overlap?
Minimum 100mm overlap at all joints — horizontal and vertical. At corners, use separate diagonal patch pieces at 45° before applying the full sheet.
CE-certified fiberglass mesh, self-adhesive tape, and foam products. Direct factory pricing from Ferizaj, Kosovo. Delivery across the Balkans.