Rock wool insulation materials improve the safety of roof structure

There were more and more roof collapse accidents recently.The accident has arouse people’s attention,and the safety of the steel structure roof of the gymnasium has become the focus of attention of the whole society.

In response to a series of steel structure building roof collapse accidents, The expert emphasizes that the load and bearing capacity should be fully considered in the design of steel structure roof structure, and calls for safety appraisal of the roof of public buildings such as steel structure gymnasiums. The tragic accident and severe damage have once again reminded people of the importance of creating a high-quality roofing system for steel buildings.

The influencing factors of the safety of the roofing system include the strength of the building structure, the quality performance of the insulation materials, and the load bearing capacity. In order to obtain a large internal space, the roof of the stadium building generally uses a grid structure, which presents the characteristics of large span and basically no column in the middle. According to the relevant national regulations, the average live load of the roof is 0.5KN/ ㎡, that is, it bears about 50 kg of weight per square meter. The expanded perlite insulation material illegally stacked on the roof has been soaked in rainwater, and the weight of the insulation material per cubic meter after water absorption reaches 60-80 kg, which directly leads to the collapse of the roof load due to excessive load.

A high-quality roofing system needs to balance building energy efficiency and safety. In the selection of roof insulation materials, special consideration should be given to factors such as thermal insulation and energy saving, fire prevention, mechanical strength and load capacity, and Huali rock woolinsulation materials have excellent performance in these indicators:

Thermal insulation and energy saving 

Huali rcok wool stone wool products have excellent thermal insulation performance, low thermal conductivity.rock wool mineral wool products can reduce energy costs while creating comfortable indoor environment. Fire safety Huali rock wool stone wool is A1 fireproof grade, the raw material of rock wool is made from natural rock, like basalt, dolomite, it is non combustible itself. While unique production process make rock wool products excellent fireproof performance.rock wool max service temperature is 650 degree,and rock wool can withstand high temperatures of 1000°C, provide fire barrier for buildings and personnel and property 

Mechanical strength 

Huali rock wool stone wool roofing products have high strength compressive resistance and point load resistance, which ensures structural stability and convenient regular maintenance; 

Load safety

Huali rock wool roofing rock wool products can achieve the roof bearing requirements through lower density, and at the same time, rock wool stone wool products have excellent hydrophobic performance, and the long-term water absorption is ≤ 1kg/㎡,Hydrophobicity rate of rock wool is more than 98% so rock wool can avoid the increase of roof load caused by water absorption.

Due to these excellent performance, Huali rock wool stone wool roofing products are widely used in roofing systems. Rock wool are ideal for commercial and industrial buildings. At the same time, Huali rock wool is always focus on the innovative roofing insulation directional rock wool board, which has a lower overall bulk density and good thermal insulation performance compared with ordinary roofing rock wool board, and this type of rock wool can achieve stronger mechanical properties and achieve the effect of light weight and high strength without additional composite veneer materials (such as reinforced glass fiber felt, etc.). While further reducing the roof load, it ensures the energy-saving effect and strength performance of thermal insulation, and provides a better solution for high-quality roofs.