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⚠️ Approximate estimate, based on average industry rates. Verify against the manufacturer datasheet.
The finish over a sound substrate consists of primer, decorative render and — if the render is not through-coloured — facade paint in two coats. Primer consumption is ~0.15–0.3 l/m² depending on substrate absorption; allow ~0.3–0.4 l/m² of paint for both coats together.
Render consumption is set by grain size: the coarser the grain, the more kilograms per square metre. The calculator lets you pick the grain and totals primer, render and paint with packaging — handy for refreshing an old ETICS or finishing a new insulation job.
Facade finish consumption per m²: deep primer 0.15–0.25 l (more on absorbent substrates), quartz primer under decorative render ~0.3 kg, decorative render by grain size: 1.5 mm ≈ 2.5 kg, 2 mm ≈ 3.2 kg, 3 mm ≈ 4.5 kg. Facade paint — 0.15–0.20 l per coat, always 2 coats.
Example: a 96 m² facade with 1.5 mm silicone render needs ~20 l of primer, ~29 kg of quartz primer, ~240 kg of render (10 × 25 kg buckets) and, if over-painted, ~35 l of paint for two coats. Silicone and silicate renders suit the Latvian climate better than acrylic — they are more vapour-open and grow less algae on north elevations; always order the tint from one batch number.
Acrylic is cheapest but does not breathe and grows algae sooner; silicone is elastic, self-cleaning and universal (the most popular choice in Latvia); silicate is the most vapour-open, right for historic and mineral-wool facades, but harder to apply.
The Latvian standard is 1.5 mm "lamb" texture — fine, modern and moderate in consumption. A 2–3 mm grain hides wall imperfections better but uses 30–80% more material.
Yes — choose a silicone or silicate paint compatible with the render type. Repainting every 10–15 years refreshes the facade far cheaper than re-rendering.
Between +8 °C and +25 °C, out of direct sun, rain and strong wind, on a dry substrate. In Latvia the safe season is May–September; in autumn winter formulas work down to +1 °C, but with caution.