Whether you live in a bungalow or on the top floor, you will face the same problem, roof waterproofing. Now waterproofing may be more involved. When carrying out waterproofing construction, everyone will consider choosing membranes. So, do you know what the waterproofing construction plan for roofing membranes is? Let’s take a look at what the waterproofing construction plans for roofing membranes are and the precautions for roofing membrane waterproofing construction. Let’s do it!
What is the waterproofing construction plan for roofing membranes?
1. Construction tools: gasoline blowtorch (3.5 liters), pulley, brush, press, scissors, tape measure, broom, etc.
2. Base layer treatment: The base layer is a cement mortar leveling layer. The base layer must be solid and flat, and there must be no looseness, bulging, convex surface or rough unevenness, otherwise it must be treated.
3. The base layer must be dry, and the moisture content is required to be within 9%. During the test, place a piece of roll material on the surface of the base layer. After 3-5 hours, if there are basically no water beads on the lower surface, construction can begin.
4. Before construction, the cement mortar residue, dust and debris remaining on the surface of the base layer should be carefully cleaned, and then the primer should be applied. It is required to apply the primer evenly, apply it once, and let it dry for more than 8 hours (to It depends on the temperature, and it is better not to stick to the feet.) Generally, the dosage per square meter is 0.2-.
5. Treatment of complex parts: Yin and Yang corners should be made into a figure-eight shape, and additional layers should be made on corner parts such as parapets, pipe roots, chimneys, exhaust holes, drains, expansion joints, etc. The general width is 30cm, and the overlap is 6-8cm.
6. Rolled material paving: Before laying the rolled material, measure the waterproof area to be constructed, and then use materials reasonably according to the size of the material. Start laying from a low place, and first press the rolled material according to the position. Place it straight, leaving 8cm of stubble on the long side and 10cm on the short side. Then ignite the blowtorch and aim it at the bottom surface of the coiled material and the surface of the base layer to heat evenly at the same time (the distance between the blowtorch nozzle and the surface of the coiled material is about 30cm). After the surface of the coiled material is melted, roll the coiled material forward and compact it flat. , it is advisable to press out molten asphalt for the joint part. Do not involve air and foreign matter during rolling, and prevent deflection, bulging and wrinkles. Then use a blowtorch and press to evenly and carefully seal the seams to prevent warping.
7. Labor protection and safety protection: Coiled materials must be prevented from being scratched or punctured by hard objects during transportation and construction. After construction is completed, it is prohibited to trample at will, and use protection work must be done. Wear gloves during construction to avoid burns and scalds. Store flammable items such as gasoline barrels and coils separately and away from fire sources to prevent fires and work-related injuries.
Precautions for waterproofing construction of roof membranes
1. Pay attention to the construction environment: If you want to do a good job in waterproofing the roof, you need to pay attention to the construction environment during construction, such as some very humid The environment often has a great impact on the later waterproofing effect, so choose a dry environment for construction as much as possible.
2. Pay attention to the material: If you want to get a very good roof waterproofing effect, in addition to paying attention to some environmental, weather and other aspects, you should also have a good grasp of the material. For example, in many cases , in order to save costs, some people will re-use the dried mortar twice, and such consequences will inevitably affect the compactness of the waterproof layer and comprehensively affect the waterproof effect.
3. Do a good job in protection: The protection work here mainly means that before making a protective layer, you need to pay attention to the protection of the waterproof layer to prevent damage. Usually within 24 hours after the slurry is applied, No one can walk or step on it artificially. Pay attention to safety: Paying attention to safety is also particularly important when performing roof waterproofing work. Since not only you have to climb high during construction, but there will also be injuries caused by some substances, so you need to pay attention to safety and wear safety helmets, protective gloves, etc. .
We cannot determine the roof waterproofing quotation list. We can only make a budget before construction and control the price within our own budget. Of course, you can’t use cheap materials just to save money, as that will bring a lot of trouble in your future life. The above is the roofing membrane waterproofing construction plan and the roofing membrane waterproofing construction precautions that the editor will introduce to you today. This ends here.