Maintenance methods of polyurethane rigid foam waterproof and thermal insulation integrated board

Polyurethane rigid foam waterproof and thermal insulation integrated panels combine waterproof and thermal insulation functions and are widely used in building exterior walls, roofs and other scenarios. In order to extend its service life and maintain performance, scientific maintenance must be carried out in terms of daily cleaning, protection, inspection, repair, storage and transportation. The following are specific maintenance methods:

1. Daily cleaning and maintenance

Clean surfaces regularly

Use a soft brush or vacuum cleaner to remove dust and debris from the board surface to avoid scratches with hard objects that may cause damage to the coating.

For oil stains and stains, you can use neutral detergent (such as dishwashing liquid) mixed with warm water, wipe with a soft cloth and rinse with water. Do not use strong acids, alkalis or organic solvents (such as gasoline, Tianna water).

Avoid long-term water accumulation

Check whether the drainage system (such as roof gutters and exterior wall drains) is smooth to prevent accumulation of rainwater from causing soaking of boards and affecting the performance of the waterproof layer.

2. Protective measures

Anti-UV aging

For boards that have been exposed to the sun for a long time, it is recommended to apply a layer of UV protective agent (such as polyurethane special paint) every 3-5 years to slow down fading and cracking of the coating.

Roof panels can be equipped with sunshades or reflective films to reduce thermal radiation damage.

Protection against mechanical damage

During construction or maintenance, avoid hitting the board with heavy objects or scratching the board with sharp tools. If drilling or cutting is required, use professional tools and allow room for expansion to prevent the board from cracking.

Install protective fences or warning signs around to prevent vandalism.

Protection against chemical corrosion

Keep away from acid and alkali environments (such as chemical plants and breeding farms). If it comes into contact with corrosive substances, rinse it with clean water and dry it immediately.

It is prohibited to stack containers containing chemical substances directly on the board.

3. Regular inspection and repair

Appearance inspection

Check the board surface every six months for cracks, blistering, and peeling, paying special attention to the seams and around the fixings.

When minor damage is found, use sandpaper to polish the damaged area and apply matching repair paint (such as polyurethane waterproof paint). The coverage area must exceed the damaged edge by more than 5cm.

Performance testing

Entrust a professional organization to test the thermal insulation performance (thermal conductivity) and waterproof performance (obturator ratio) every year. If the data is abnormal, replace the board in a timely manner.

Use infrared thermal imaging cameras to detect local temperature abnormalities and troubleshoot potential hollowing or water seepage risks.

Fixture maintenance

Check whether screws, rivets and other fixing parts are loose or corroded. Corroded parts need to be replaced with stainless steel and the fixing holes must be re-sealed.

4. Storage and transportation specifications

Storage environment

Store in a dry, ventilated room, away from direct sunlight and rain.

When stacking boards, use wooden squares or pallets at the bottom with a height of no more than 1.5 meters to prevent deformation.

Transport protection

The transport vehicle must be flat, with soft materials (such as foam boards) separated between the boards and firmly fixed to prevent sliding.

Avoid sudden braking or violent bumps to prevent the edge of the board from being bumped.

5. Seasonal maintenance

Antifreeze in winter

In severely cold areas, it is necessary to ensure that the joints of the boards are well sealed to prevent snowmelt water from seeping in and causing frost heaving and cracking.

Use a plastic shovel or soft-bristled brush when clearing snow. Metal tools are prohibited.

Heat protection in summer

In high-temperature seasons, avoid long-term exposure of the board to an environment above 50°C, and install an insulation layer if necessary.

6. Professional maintenance suggestions

Comprehensive maintenance is performed every 2-3 years, including cleaning, coating repair, fixing replacement, etc.

Complex damage (such as large-scale water seepage, structural deformation) needs to be handled by contacting the manufacturer or a professional construction team to avoid secondary damage caused by self-repair.

Things to note:

Protective equipment such as gloves and goggles must be worn during maintenance.

Welding and open flame operations on the plates are prohibited to prevent polyurethane materials from burning.

Waste boards must be recycled and disposed of in accordance with environmental protection requirements and cannot be burned at will.

Through scientific maintenance, the service life of polyurethane rigid foam waterproof and thermal insulation integrated panels can reach more than 25 years, and continue to exert high-efficiency, energy-saving and waterproof functions.