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Quantity & coverage calculator

Choose the surface and system and enter the dimensions. Quantities, packs and an indicative budget are calculated per layer with waste allowance.

1. Surface
2. System

Primer + glass-fleece base layer + slate cap sheet. The classic long-life solution for exposed terraces, including parapet reinforcement strips and top-edge sealant.

3. Dimensions
Membrava · Quantity summary (indicative) ·

Result

Two-layer bitumen membrane (slate cap sheet) · 133,2 m² (incl. upstands 13,2 m²)

LayerProductQuantityPacksCost range
Bitumen primerAstarix Bitumen Primer0,25–0,35 kg/m²42 kg3 × 18 kg can3.300 ₺ – 4.050 ₺
1st layer membrane (glass fleece)Bitüra P3 Glass-Fleece Membrane1,12 m²/m² (bindirme dahil)153,7 m²16 × 10 m² roll (1 × 10 m)15.200 ₺ – 18.400 ₺
2nd layer membrane (slate)Bitüra Slate Mineral-Surfaced Membrane1,12 m²/m² (bindirme dahil)153,7 m²16 × 10 m² roll (1 × 10 m)26.400 ₺ – 31.200 ₺
Parapet reinforcement stripBitüra P4 Polyester Membrane1,12 m²/m² (bindirme dahil, her kat için)16,3 m²2 × 10 m² roll (1 × 10 m)2.900 ₺ – 3.500 ₺
Top-edge sealantFixor PU 25 Polyurethane Sealant10 × 10 mm derzde ~6 m / 600 ml48,4 m9 × 600 ml sausage (≈6 m of 10 × 10 mm joint)2.520 ₺ – 3.150 ₺
Materials
50.300 ₺ – 60.300 ₺
Labour (180 ₺–260 ₺/m²)
24.000 ₺ – 34.600 ₺
Estimated total (excl. VAT)
74.300 ₺ – 94.900 ₺

Indicative only. Coverage assumes a flat, clean, dry substrate; waste 5–15% per layer. Exact quantities and prices come from an on-site survey.

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