There are various reasons for the quality problem of building exterior wall insulation falling off. Mainly controlled from three aspects: materials, design and construction. To reduce the hidden dangers of insulation system falling off.

1. Do a good job in the selection and control of insulation system materials

Control the quality of materials such as polymer mortar, insulation board and anchor bolts in the building exterior wall insulation system. Adhesives should be scientifically proportioned to ensure the polymer content and supporting additives.
The quality of the insulation board should be qualified, and corresponding measures should be taken to strengthen rock wool, XPS board, PU board, etc. For example, rock wool board should strengthen anchor bolt fixation. XPS board should be brushed with interface agent to improve adhesion, etc.
When selecting anchor bolts, the anchor bolt type and anchor bolt depth should be selected according to the type of base wall. Ensure that the anchor force requirements are met. Prevent the anchor bolt anchor force from failing and failing to achieve the anchoring effect.

2. Reasonable design of wall insulation system

The wall insulation project is a systematic project, and the matching of each structural layer needs to be considered during design. For materials with low strength or poor adhesion, anchor bolts need to be designed to reinforce and improve the bonding rate of insulation boards.
The exterior finish should be matched with the insulation system when selected. It is advisable to design a coating system with good air permeability. Flexible tiles should be used for the designed tiles, and the separation joints should be reasonably designed.

3. Strengthen construction control

Construction is a weak link in the quality control of building wall insulation projects. Before construction, the base wall inspection and acceptance should be done. Ensure that the tensile bonding strength of the base meets the requirements of the specification.
The flatness of the wall is within the controllable range. There are no hollow drums, powdering, oil stains, etc. that affect the pasting. The construction process control needs to be strengthened during insulation construction. Ensure the coating rate of the bonding mortar. Avoid non-standard practices such as false pasting of insulation boards, false anchor bolts, and dry hanging nets.
Before and after the construction of the insulation system, attention should be paid to weather changes and finished product protection. Avoid rain erosion or sun exposure before the mortar solidifies.

The problem of exterior wall insulation falling off


It is understood that there may be one or more reasons for the detachment of the exterior wall insulation layer. Long-term cracking and leakage. The strength of the mortar and the insulation material will decrease.
All of these may cause the insulation system to fall off. The quality control of the exterior wall insulation system should be strengthened from the aspects of design, materials and construction. Reduce the hidden dangers of construction quality and create an excellent building exterior wall insulation project.