Ben Wilkinson
New Member
Hi
Have rendered my own house which is in a very wet and windy place using parex monorex G00 sprayed with a monojet. This was the first job I had used the machine in anger and also the first time using mono. Anyway we sprayed it in 2 passes. Roughly troweling first pass then ruling the second pass off as we went.
Next day we scraped with an I section and rubbed up with scratch pad. There appeared to be some little bits of power in the render which hadnt mixed properly and a few little bits of paper bag so I picked them out and mixed up some of the scrapings at bottom of wall with a tiny amount of water and filled the holes with that and then rubbed up.
Anyway now after 6 months there is a few little holes that seem to have appeared. Im just gonna patch them as they are tiny but noticeable.
The question is why am I getting these voids in the render? Do I need to work it more on first or second coat with h section or spats? Also was considering using a serrated h section and going over with spat is this the best way? Not realy sure if the holes are air pockets or just bits of power not mixed properly that have been washed out by rain.
Thanks in advance.
Have rendered my own house which is in a very wet and windy place using parex monorex G00 sprayed with a monojet. This was the first job I had used the machine in anger and also the first time using mono. Anyway we sprayed it in 2 passes. Roughly troweling first pass then ruling the second pass off as we went.
Next day we scraped with an I section and rubbed up with scratch pad. There appeared to be some little bits of power in the render which hadnt mixed properly and a few little bits of paper bag so I picked them out and mixed up some of the scrapings at bottom of wall with a tiny amount of water and filled the holes with that and then rubbed up.
Anyway now after 6 months there is a few little holes that seem to have appeared. Im just gonna patch them as they are tiny but noticeable.
The question is why am I getting these voids in the render? Do I need to work it more on first or second coat with h section or spats? Also was considering using a serrated h section and going over with spat is this the best way? Not realy sure if the holes are air pockets or just bits of power not mixed properly that have been washed out by rain.
Thanks in advance.