Compatibilidade telhado
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
Área × (1-obst%)
About this calculator
The solar roof compatibility calculator helps determine the usable area available for installing solar modules on a roof. It takes into account the total roof area and the percentage of obstruction, providing a precise estimate of the area that can be used for solar energy generation.
The formula used is simple: Total roof area multiplied by (1 - obstruction percentage). This means that if the roof has a total area of 100m² and 20% obstruction, the usable area will be 80m². This information is crucial for planning an efficient solar system installation.
It's essential to use this calculator when planning to install solar panels on a roof. It helps identify if the roof has enough space for the required number of modules to meet energy needs. Additionally, it's useful for evaluating the feasibility of different solar system configurations.
When using this calculator, it's essential to be careful with the accuracy of the input information. The obstruction percentage should be estimated based on a careful assessment of the roof, considering elements such as chimneys, antennas, skylights, and the roof structure itself.
Frequently asked questions
What is considered obstruction on the roof?
Obstruction refers to any element that blocks sunlight or occupies space on the roof, such as chimneys, antennas, skylights, etc.
How to estimate the obstruction percentage?
The obstruction percentage can be estimated by measuring the area occupied by obstructions and dividing it by the total roof area.
Can I use this calculator for any type of roof?
Yes, the calculator can be used for any type of roof, as long as you have the necessary information about the total area and obstruction percentage.
Does the calculator consider roof slope?
No, the calculator does not consider roof slope. It only evaluates the usable area based on obstruction.
How can I increase my roof's usable area?
You can increase the usable area by removing or relocating obstructions, or considering the installation of more efficient solar modules.