For insolation calculations and design of shading devices (SD) comprising plane sections or fins, the method based on solar maps shall be preferred because of its high descriptiveness and universality.The article describes the algorithm of design of a general-position SD using a solar map and a shade clinometer. An example of calculation of SD geometry parameters such as fin slopes with the horizontal plane and the facade plane, distance between the fins with consideration of screening of the translucent structure during the building cooling period and of transmission of solar radiation during its heating period is given in the article. A simplified formula of a general-position SD energy efficiency calculation is proposed. 1. Marsh A.J. The Application of Shading Masks in Building Simulation / 9th Int. IBPSA Conf. “Building Simulation 2005”, Montreal, Canada, 2005.
2. Harkness, E.L., Mehta, M.L. Solar Radiation Control in Buildings [Regulirovaniye solnechnoy radiatsii v zdaniyakh]; Trans. from Eng. by G.M. Ayrapetova, Moscow: Stroyizdat, 1984,177 p.
3. Kupriyanov, V.N., Spiridonov, A.V. Calculation of Shading Device Parameters [Raschyot parametrov solntsezachshitnykh ustroystv] // Stroitelstvo i rekonstruktsiya, 2019, Vol. 3 (83), pp. 54–62.
4. Spiridonov, A.V., Dvoretsky, A.T. Insolation and Shading [Insolyatsiya i solntsezachshita] / Light Engineering Handbook [Spravochnaya kniga po svetotekhnike]. 4th issue / Edited by Yu.B. Eisenberg and G.V. Boos. Moscow: Editorial Board of the Svetotekhnika journal, 2019, pp. 553–566.
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12. Dvoretsky, A.T., Morgunova, M.A., Sergeychuk, O.V., Spiridonov, A.V. Methods of Design of Stationery Shading Devices [Metody proektirovaniya statsionarnykh solntsezachshitnykh ustroystv] // Stroitelnyie materialy, oborudovaniye, tekhnologii XXI veka, 2018, Vol. 11–12, pp. 6–10.

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• solar map
• shade clinometer
• shadow mask
• shading device geometry parameters
• preferable insolation zone
• overheating zone
• building cooling period