Hi there.
I was wondering if anyone would be able to offer some advice about the renderer on our new build house in Devon which be bought back in September 2015. The house is rendered with a Parex render.
There are a number of problems with the render:
1) Physical damage to the render caused during construction.
2) Staining on the render (white stains and red/brown devon mud stains).
3) Failure of the render in corners of window recess/ next to plastic window sills.
4) Localised cracking at couple of locations.
5) Appearance of small holes from air pockets (about 20- 30 in total over the whole house).
There’s also the strange thing that any metalwork on the outside of the house seems to go rusty very quickly compared to other house with the same fittings.
An initial attempt was made a repairing the holes a few months after we moved in. The small air pocket holes repairs were relatively successful. The larger damage repairs are more obvious as the texture does not match the original and also are a different shade of colour when wet. Repairs around the windows all failed within a few months.
Currently the Housebuilder are proposing to fill in any holes (they haven’t specified with what) and then apply Parex Colourwash over the top.
The Parex information sheet about the air pocket problem says that the housebuilder’s approach doesn’t really work and that they should patch, apply a 2-3mm coat of mesh reinforced Maite base coat, then apply an acryic finish of 310 primer and DPR Sand Fine Finish.
Basically we paid for a brand new house and after it has been repaired expect it to look and perform like a new house. Question is are the housebuilders trying it on or will their repair do the job? Are these typical problems or should I expect more problems with the render in the future?
Thanks in advance,
Tim
Air pocket hole by Tim Mills, on Flickr
Window sill defect by Tim Mills, on Flickr
Window sill Repair by Tim Mills, on Flickr
White staining by Tim Mills, on Flickr
White staining 2 by Tim Mills, on Flickr
Scaffold damage by Tim Mills, on Flickr
Repaired scaffold damage by Tim Mills, on Flickr
Repaired crack by Tim Mills, on Flickr
I was wondering if anyone would be able to offer some advice about the renderer on our new build house in Devon which be bought back in September 2015. The house is rendered with a Parex render.
There are a number of problems with the render:
1) Physical damage to the render caused during construction.
2) Staining on the render (white stains and red/brown devon mud stains).
3) Failure of the render in corners of window recess/ next to plastic window sills.
4) Localised cracking at couple of locations.
5) Appearance of small holes from air pockets (about 20- 30 in total over the whole house).
There’s also the strange thing that any metalwork on the outside of the house seems to go rusty very quickly compared to other house with the same fittings.
An initial attempt was made a repairing the holes a few months after we moved in. The small air pocket holes repairs were relatively successful. The larger damage repairs are more obvious as the texture does not match the original and also are a different shade of colour when wet. Repairs around the windows all failed within a few months.
Currently the Housebuilder are proposing to fill in any holes (they haven’t specified with what) and then apply Parex Colourwash over the top.
The Parex information sheet about the air pocket problem says that the housebuilder’s approach doesn’t really work and that they should patch, apply a 2-3mm coat of mesh reinforced Maite base coat, then apply an acryic finish of 310 primer and DPR Sand Fine Finish.
Basically we paid for a brand new house and after it has been repaired expect it to look and perform like a new house. Question is are the housebuilders trying it on or will their repair do the job? Are these typical problems or should I expect more problems with the render in the future?
Thanks in advance,
Tim
Air pocket hole by Tim Mills, on Flickr
Window sill defect by Tim Mills, on Flickr
Window sill Repair by Tim Mills, on Flickr
White staining by Tim Mills, on Flickr
White staining 2 by Tim Mills, on Flickr
Scaffold damage by Tim Mills, on Flickr
Repaired scaffold damage by Tim Mills, on Flickr
Repaired crack by Tim Mills, on Flickr
