Construction method of polyurethane rigid foam insulation decorative integrated board

The construction method of polyurethane rigid foam insulation decorative integrated board mainly includes the following steps and key points:

1. Preparation before construction

Grassroots inspection and processing:

The base layer of the wall should be solid and smooth, without delamination, hollowing or cracking.

Remove dust, dirt, oil stains and other impurities on the surface of the base layer.

Conduct quality inspection on base walls to ensure compliance with construction requirements.

Measurement and setting out:

According to the design drawings and actual site conditions, the dividing lines, door and window opening control lines and floor horizontal lines pop up.

Hang vertical reference lines at the large corners of the exterior walls to ensure construction accuracy.

Material preparation:

Prepare polyurethane rigid foam insulation decorative integrated panels, bonding mortar, mechanical fixings, caulking materials and other materials required for construction.

Check the quality certification documents of the materials to ensure that the materials meet the design requirements and relevant standards.

Preparation of construction machinery:

Prepare hanging baskets, scaffolding and other construction equipment to ensure construction safety.

Prepare bonding mortar mixer, electric drill, screwdriver and other construction tools.

2. Construction steps

Prepare bonding mortar:

Prepare bonding mortar in accordance with relevant standards and construction plans to ensure that the performance of the mortar meets construction requirements.

Paste polyurethane rigid foam thermal insulation decorative integrated board:

The polyurethane rigid foam thermal insulation decorative integrated board is pasted on the wall using the strip method or the dot frame method.

The bonding mortar should be evenly applied on the back of the polyurethane rigid foam thermal insulation decorative integrated board, and the thickness is generally 3~6mm.

The effective bonding area must meet the design and construction plan requirements to ensure that the board and wall are firmly bonded.

Timely check the flatness and verticality of the polyurethane rigid foam insulation decorative integrated board after pasting to ensure construction quality.

Mechanical fixing:

Install the mechanical fixings 24 hours after the polyurethane rigid foam insulation decorative integrated board is pasted.

The effective fixing depth, quantity and model of mechanical fixings should comply with the design and construction plan requirements.

Make sure mechanical fasteners are installed securely to prevent panels from falling off.

Special parts treatment:

Carry out special treatment on the insulation structures such as door and window openings, yin and yang angles, braces, cornices, parapets, deformation joints and board joints.

Ensure that the thermal insulation performance of these parts meets the design requirements and relevant standards.

Caulking treatment:

After pasting the polyurethane rigid foam insulation decorative integrated board for 24 hours, perform board seam processing.

First fill the gaps with a one-component polyurethane foam caulking agent to ensure that the gaps are filled tightly.

Then press in the backing material, which should be even and straight, with a diameter or width of 1.3 times the width of the slit.

Then seal the gaps with silicone construction sealant to ensure that the sealant is full, dense, evenly connected, and free of bubbles.

The width and thickness of the sealant should comply with the requirements of the design and construction plan.

3. Post-construction acceptance and maintenance

Surface cleaning:

After the construction is completed, clean the surface of the polyurethane rigid foam insulation decorative integrated board to remove impurities and stains.

Delivery acceptance:

Conduct delivery acceptance in accordance with relevant standards and construction plans to ensure that the construction quality meets design requirements and relevant standards.

Maintenance and care:

Regularly inspect and maintain the polyurethane rigid foam insulation decorative integrated board to ensure its long-term stable operation.

Replace and repair damaged boards and sealants in a timely manner to prevent the problem from expanding.