Polyurethane insulation board is a very common insulation material currently used in the construction of cold storage. Its advantages lie in its good thermal insulation performance, high strength and good dimensional stability. Below, we will introduce how polyurethane insulation panels are used to build cold storage from the aspects of selection, construction preparation, and construction process of polyurethane insulation boards.
Selection of polyurethane insulation board
When building a cold store, choosing the right polyurethane insulation panel is crucial. Generally speaking, we can choose polyurethane insulation boards from the following aspects:
Density: The density of polyurethane insulation board is generally between 35-45kg/m3, the higher the density, the better the insulation performance. However, polyurethane insulation panels with too high density will increase the difficulty of construction and increase the cost.
Thickness: According to the different requirements of the cold storage, you can choose polyurethane insulation boards with different thicknesses. Generally speaking, the thickness of the insulation layer of the cold storage should be more than 100mm.
Size: The size of the polyurethane insulation panel is generally 1200mm*600mm, but there are also other sizes of polyurethane insulation boards to choose from.
Construction preparation
Before the construction of polyurethane insulation board, we need to do the following preparations:
1. On-site cleaning: Clean up the garbage and sundries inside and outside the cold storage, and clean the wall.
2. Determine the construction sequence: According to the structure and requirements of the cold storage, determine the construction sequence and method to ensure the construction quality.
3. Prepare tools: Prepare necessary tools, such as chainsaws, hand saws, planes, wrenches, etc.
4. Safety measures: Safety measures should be formulated before construction, such as wearing safety helmets, gloves, protective glasses, etc.
Construction process
Cut the polyurethane insulation board: According to the requirements and size of the cold storage, use a chainsaw or hand saw to cut the polyurethane insulation panel.
Paste the polyurethane insulation board: Paste the cut polyurethane insulation panel on the wall of the cold storage. When pasting the polyurethane insulation board, pay attention to maintaining the flatness and verticality of the wall surface to avoid gaps and cracks in the insulation layer.
Caulking: Fill the gap between the polyurethane insulation board and the wall with polyurethane foam. When caulking, pay attention to controlling the amount of polyurethane foam to avoid too much or too little foam.
Overall painting: paint the entire insulation layer with polyurethane sealing material to ensure the sealing and strength of the insulation layer.
Install the cold storage door: After the construction of the insulation layer is completed, install the cold storage door. The installation of cold storage doors should pay attention to airtightness and waterproofness.
Acceptance and maintenance
1. Acceptance: After the construction is completed, the acceptance is carried out. When checking and accepting, it is necessary to check whether the indicators such as the tightness, strength and thickness of the insulation layer meet the requirements.
2. Maintenance: The maintenance of cold storage is very important. In daily use, pay attention to keep the interior of the cold storage clean and dry, check the insulation layer regularly, and repair it in time if there is any damage, so as to ensure the insulation performance and service life of the cold storage.
In short, polyurethane insulation panel is an indispensable insulation material in the construction of cold storage. During the construction process, we need to select the appropriate polyurethane insulation board, prepare for the construction, carry out the construction strictly in accordance with the construction sequence, and carry out acceptance and maintenance after the construction is completed. Only in this way can the insulation performance and service life of the cold storage be guaranteed.
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