When constructing polymer waterproofing membranes, how is the construction carried out specifically and what is the construction process like?
Below, Direct sales of polymer waterproofing materials Let's take a look together at how polymer waterproofing membranes are constructed:
There are several construction methods for polymer waterproofing membranes. The hot mastic asphalt pasting method is more suitable for the overlapping laying of petroleum asphalt felts.
When laying, we pour the mastic asphalt while laying the felt. For waterproofing membranes with high thermoplasticity, the hot melt method can be used. In this laying method,
a flame heater is used to melt the hot melt adhesive at the bottom of the membrane for bonding. The hot air welding method is similar to the hot melt method,
in which an air welding gun is used to heat the joints of the membrane for bonding. Before laying the waterproofing membrane, you need to first clean up the sundries, oil stains, etc.
on the surface of the base layer; repair and level the surface, and there should be no standing water on the base layer surface, etc. The cleaning work of the base layer can be carried out
at any time during the construction process. Next, we prepare the plain cement mortar according to the proportion, snap the control lines of the membrane on the base surface,
and conduct a trial laying from the lower part to the higher part. After cutting the membrane, tear off the release paper of the membrane, apply the plain cement mortar by scraping
it on the bonding surface of the membrane and the position on the base layer where the membrane will be laid. Then, with the cooperation of two construction workers,
turn the membrane over and lay it on the base layer. After the laying is completed, the construction workers need to use a roller to scrape and press from the middle towards
the other side in the overlapping direction of the membrane. This can effectively expel the air inside the membrane and ensure that the membrane adheres fully to the base surface.
After the large-area laying of the membrane is completed, we can carry out the overlapping construction. Before construction, first clean up the slurry that overflows from the overlapping edge part.
Then, tear off the release film on the overlapping edge of the membrane, and use a hot air gun to heat the membrane while bonding it. After the construction of the waterproofing membrane
is completed, it needs to be left to dry for 24 to 48 hours.
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