Course detail

Thermal Protection of Buildings (S)

FAST-BH059Acad. year: 2023/2024

Proper design of thermal technical properties of building structures, rooms and buildings ensures the prevention of thermal defects and failures, ensuring the desired state of the internal environment and low energy performance of buildings. In addition to thermal and moisture microclimate can be optimized design of the structure and the doors and windows also provide the required acoustic microclimate. The optimal design size and type of window pane can affect the thermal, acoustic and visual comfort in the interior and the overall energy balance of the building.

Language of instruction


Number of ECTS credits


Mode of study

Not applicable.


Institute of Building Structures (PST)

Entry knowledge

Basic knowledge of mathematics, knowledge of the fundamental physical constants and thermal properties of building materials, physical characteristics of sound, the sound field theory, basic photometry.

Rules for evaluation and completion of the course

Extent and forms are specified by guarantor’s regulation updated for every academic year.


Introduction course to the thermal protection of buildings, design requirements for thermally insulated buildings envelopes and constructions, assessment of indoor thermal and visual and acoustic comfort.
Fundamentals in the thermal protection and energy balance of buildings. Design of thermally insulated building constructions without thermal bridges and condensation problems. Evaluation of thermal comfort in low energy buildings. Introduction to acoustic and visual comfort in buildings.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

KULHÁNEK, František. Tepelná ochrana a energetika budov. Praha: Pro Českou komoru autorizovaných inženýrů a techniků činných ve výstavbě vydává Informační centrum ČKAIT, 2014. ISBN 978-80-87438-48-0


ČSN 73 0540-1. Tepelná ochrana budov – Část 1: Terminologie. 2005.


ČSN 73 0540-3. Tepelná ochrana budov – Část 3: Návrhové hodnoty veličin. 2005.


ČSN 73 0540-4. Tepelná ochrana budov – Část 4: Výpočtové metody. 2005.

OSTRÝ, Milan a BRZOŇ Roman. Stavební fyzika - Tepelná technika v teorii a praxi. Brno: Ing. Vladislav Pokorný - LITERA, 2014. 100 s. ISBN 978-80-214-4879-7 (CS)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme B-P-C-SI (N) Bachelor's

    branch VS , 2. year of study, summer semester, compulsory-optional

  • Programme B-K-C-SI (N) Bachelor's

    branch VS , 2. year of study, summer semester, compulsory-optional

Type of course unit



13 hours, optionally

Teacher / Lecturer


1. Fundamentals in heat transfer. Thermal comfort in buildings. 2. Steady state thermal conditions, U-value determination. 3. Temperature profile for steady state conditions. 4. Risk of a surface condensation and mould grows, critical surface temperature, dew point temperature. 5. Thermal bridges. 6.-7. Assessment and determination of condensation regions into building constructions. Annual balance of condensed and evaporated amounts in building constructions.8. Non-steady state thermal conditions. 9. Temperature drop on floor finishing, floor category. 10. Thermal stability of rooms in winter and summer seasons. 11. Energy legislation. 12. Evaluation of energy efficiency of buildings. 13. Visual and acoustic comfort in buildings.


26 hours, compulsory

Teacher / Lecturer


1.Introduction to the issues, recommended reading, the possibility of using computer technology, award structures and premises, requirements. 2.Coefficient transmittance - assessment of all assigned existing structures. Calculation of thermal transmittance Uw windows. 3.Design and assessment of external walls "A" and "B" and flat roofs "C" to meet the required and recommended heat transfer coefficient according to the current wording of CSN 73 0540-2 4.Numerical and graphics solutions at all temperatures during the given structures for steady-state temperature. Assessment of the temperature factor of the internal surface of the components "A", "B" and "C" and modified components "A" and "C". 5.Approximate calculation of the coefficient of heat transfer (thermal resistance of structures), which can not be considered one-dimensional heat transfer (roof, wall timber, sandwich panel, etc.). 6.Lowest inner surface temperature structure (thermal factor inner surface fRsi) in the corners (thermal bonding, thermal bridges). Assess total of 5 parts (AB, BC, AC, BF and modified structures AC). 7.Detectionthe condensation on peripheral wall of the "A" flat roof "C". Draft vapor diffusion properties (layers with high diffusion resistance, gravel) in the peripheral wall of "A" at the bathrooms. 8.Calculation of the annual balance of evaporation and condensation of water vapor in the perimeter wall of the "A". 9.Calculation annual balance of condensation and evaporation of water in the perimeter wall or a flat roof with computer technology, an example of calculating the thermal stability in summer. 10.Temperature drop on the floor Δθ10. 11.Average heat transfer coefficient Uem calculated for a building with existing and new structures. 12.Design internal dividing walls between apartments to suit the requirements in terms of sound insulation according to the current version CSN 730532 13.Credits.