Precautions for load-bearing capacity when installing household solar panels on the roof
When installing household solar panels on the roof, load-bearing capacity is an important consideration. Here are some key points to note:
First, assessment of the roof’s load-bearing capacity
Understand the roof structure:
Before installing solar panels, it is necessary to understand the structural type of the roof, such as concrete, reinforced concrete, tiles, etc., because different types of roofs have different load-bearing capacities.
Calculate the total weight:
The total weight of all installation components such as solar panels, brackets, and cement square bricks needs to be taken into account. For instance, a 3KW household rooftop solar power station might require 20 150W solar panels, each weighing approximately 12kg, totaling 240kg. Adding the weight of the brackets and cement square bricks, the total weight could reach 450kg or more.
Evaluate the load-bearing capacity per square meter:
Based on the floor area occupied by the solar panel brackets, calculate the weight that each square meter of the roof needs to bear. For instance, if the bracket covers an area of 15 square meters and weighs 450 kilograms in total, then the load-bearing capacity per square meter is 30 kilograms.
Compare the roof load-bearing standards:
Under normal circumstances, the load-bearing capacity of a household roof should exceed 30 kilograms per square meter. However, to ensure safety, it is best to refer to local building standards and regulations, or consult professional engineers or structural designers to conduct a load-bearing assessment of the roof.
Second, consider other load factors
Wind pressure load
When designing the installation plan for solar panels, it is necessary to take into account the local wind speed and direction, as well as the impact of wind pressure on the roof and solar panels.
Snow load:
If it often snows at the installation site, the load of snow pressure on the roof and solar panels needs to be considered.
Seismic load
Families located in earthquake-prone areas also need to consider the impact of seismic loads on rooftops and solar panels.
Third, preparations before installation
Select the appropriate installation method:
According to the load-bearing capacity and structural characteristics of the roof, select the appropriate installation method, such as additional type, ballast type or pile foundation type.
Reinforce the roof structure
If the load-bearing capacity of the roof does not meet the requirements, the roof needs to be reinforced. The reinforcement plan should be designed by professional engineers or structural designers.
Ensure the installation quality:
Select a qualified and experienced installation team to install solar panels and ensure that the installation process complies with relevant standards and norms.
Fourth, maintenance after installation
Regular inspection
After installation is completed, the condition of the solar panels, brackets and connecting components should be inspected regularly to ensure their stability and reliability.
Deal with problems promptly:
If any problems are found, such as loosening, corrosion, deformation, etc., they should be dealt with in time to avoid more serious consequences.
Fifth, other precautions
Consider roof waterproofing:
When installing solar panels, it is necessary to ensure that the waterproof layer of the roof will not be damaged. If necessary, waterproofing treatment of the roof can be carried out before installation.
Avoid occlusion:
Make sure that the solar panels are not blocked by trees, buildings, etc. after installation to avoid affecting the power generation efficiency.
Consider aesthetics:
Under the premise of meeting the load-bearing and safety requirements, the overall aesthetic appeal of the solar panels and the roof can be considered, and appropriate colors and styles can be selected.
PowerGlow focuses on helping Kiwi families and businesses harness solar energy for sustainable living. With extensive experience, we are dedicated to delivering high-quality products and exceptional service, making clean energy easy and accessible for everyone.Official website addresshttps://powerglow.co.nz/
