Standard Loads of Materials

Schedule of Permanent Loads commonly found in Residential Properties

Pitched Roof (Measured on slope)
Clay Tiles (Plain)	0.65 kN/m²
Clay Tiles (Interlocking)	0.45 kN/m²
Concrete Tiles (Plain)	0.75 kN/m²
Concrete Tiles (Interlocking)	0.45 kN/m²
Slates	0.35 kN/m²
Artificial Slates	0.25 kN/m²
Battens + Felt	0.05 kN/m²
Rafters	0.10 kN/m²
Pitched Roof (Measured on plan)
Timber Trussed Rafters	0.25 kN/m²
Ceiling Joists	0.10 kN/m²
9.5mm Plasterboard + Skim	0.15 kN/m²
Flat Roof - Asphalt Finish
2 Layer Asphalt	0.42 kN/m²
Felt	0.02 kN/m²
Boarding	0.10 kN/m²
Insulation	0.01 kN/m²
Joists	0.10 kN/m²
9.5mm Plasterboard + Skim	0.15 kN/m²
Flat Roof - Felt Finish
10mm Stone Chippings	0.14 kN/m²
3 Layer Felt	0.07 kN/m²
Boarding	0.10 kN/m²
Joists	0.10 kN/m²
Insulation	0.01 kN/m²
9.5mm Plasterboard + Skim	0.15 kN/m²
Timber Floor
Boards	0.10 kN/m²
Joists	0.15 kN/m²
12.5mm Plasterboard + Skim	0.20 kN/m²
Lath + Plaster	0.30 kN/m²
Precast Concrete Floor
65mm Screed	1.60 kN/m²
150mm Precast Concrete Floor	3.00 kN/m²
2 Coat Plaster	0.20 kN/m²
Walls
Sandstone	24 kN/m³
102.5mm Brickwork	2.00 kN/m²
Glazing	0.25 kN/m²
Render	0.30 kN/m²
2 Coat Plaster	0.20 kN/m²

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