Analysis of common problems in roof waterproof engineering

14 problems needing attention in waterproof construction

The waterproof grade is not clear.

If the waterproof grade of roof engineering is not clear and the fortification requirements are not clear, the waterproof engineering design shall be carried out.

Detailed structural design is not detailed.

There are no detailed structural design drawings for important parts such as roof structural nodes.

There is no design for the blue prints.the design.

Before the waterproof project construction, the blue prints.the design was not carried out.

No construction plan has been prepared.

Before the roof waterproof construction, the construction unit did not prepare the roof construction scheme or technical measures.

Non-professional team building

The waterproof project is constructed by a non-waterproof professional team, and the operator has no work license.

No "three inspections" system has been established.

In the process of roof waterproofing construction, there is no "three inspections" system of self-inspection, mutual inspection and full-time personnel inspection in each process.

No sampling reinspection was conducted.

After the waterproof material entered the construction site, it was not sampled and rechecked.

Construction in rainy and snowy days

In order to seize the time limit for a project, the waterproof layer of the roof is constructed in rainy days, snowy days, five-level winds and above.

The ambient temperature does not meet the requirements.

During the construction of roof waterproof layer, the ambient air temperature conditions do not meet the requirements.

disordered structure

The roof waterproof layer was not constructed in the order of "high first, then low" and "far first, then near".

Poor protection of finished products

After the waterproof layer is completed, the finished product is not well protected.

No tests were conducted.

After the completion of the roof waterproof layer, no water spraying or water storage test was carried out on the detail structure, joints and roof.

Property is not managed.

After the roof waterproofing project was put into use, the property was not managed, maintained and maintained.

Failing to carry out inspection as required.

The construction quality of various sub-projects of roof engineering has not been inspected according to the batch regulations.