Indicative onlyThese tools provide indicative calculations only. No warranty is given as to the accuracy, completeness or fitness for purpose of any output. Using this site does not create a professional relationship or duty of care between brickdims and the user. Results must not be used as a substitute for professional advice, site-specific assessment, or formal compliance sign-off. Building regulations are subject to change, so always verify against the current editions of the relevant Approved Documents and consult a building control officer where required. brickdims accepts no liability for any loss, damage or non-compliance arising from reliance on these tools, to the fullest extent permitted by law. If any part of these terms is found unenforceable, the remaining terms continue to apply. These terms are governed by the laws of England and Wales. By using this site you accept these terms.
Solar Shading
Visualise how solar altitude affects sunlight penetration through a window opening, with or without a brise soleil. Assumes a south-facing facade with the sun perpendicular to the wall.
Solar Input
35.0°
Use the Sun Path calculator to find the solar altitude for a specific location, date and time.
Window & Wall
Window height (m)1.20
Wall thickness (m)0.30
Reveal / setback (m)0.10
Brise Soleil
Projection length (m)0.60
Height above window (m)0.10
Angle (° from horiz.)0°
Solar altitude
35.0°
input
BS cut-off angle
8.1°
shading threshold
Lit window
67%
81 cm of 120 cm
Floor penetration
0.96 m
from inner wall face
✓ Brise soleil is shading the window. Solar altitude 35.0° exceeds the cut-off angle of 8.1°. Only the bottom 67% of the window height receives direct sun.
2D simplification assuming a south-facing facade and sun angle perpendicular to the wall. Not a substitute for professional daylight assessment under BR209 or EN 17037.
Results from brickdims.com tools are indicative only. Using this site does not create a professional relationship or duty of care. Not a substitute for professional advice or formal compliance sign-off.