Wall and render softwash near Cofflete
Cofflete Creek off the Yealm estuary.
Cofflete property owners usually call about colour rather than dirt. Growth flattens the tone of a painted render and stone finish long before anyone would call the wall unclean.
Working out what is wrong on a Cofflete wall
- 01The presence of moss rather than algae suggests standing water rather than damp air.
- 02The ground level relative to the damp course is checked before the base of a wall is treated.
- 03Anything that cannot be explained by water is treated with more caution, not less.
- 04Hollow-sounding render is checked by tapping before any water is put onto it.
- 05The direction the growth thickens in points at the source of the moisture.
- 06A wall that feels chalky under the hand is telling you the coating has aged, not that it is dirty.
- 07Where paint is peeling in flakes rather than powdering, adhesion has already gone.
- 08Weep holes are counted and checked for blockage while the wall is being read.
Material first, method second
- Bead edges and stop ends on a rendered elevation are the details worth protecting from driven water.
- Render responds to dwell time better than almost any other finish, which is what makes softwash suit it.
- Painted masonry can be cleaned, though a paint film that has already lost adhesion will lift where it was going to fail anyway.
- A test patch low down and out of sight is how failing paint is found deliberately.
- A stone wall in deep shade holds moss in the joints long after the faces have dried.
- The rinse on stone is gentle enough that nothing is driven into an open joint.
Why this keeps happening on PL8 elevations
- Cracked render lets water sit behind the face as well as on it, so the staining pattern follows the crack.
- A path that slopes towards a house rather than away from it keeps the base of the wall wet after every shower.
- A blocked hopper head can soak the same square metre of wall for an entire winter without anyone noticing.
- Any surface that holds a drop of water long enough to be seen will hold it long enough to feed growth.
- Once lichen is established it holds water itself, which makes the surface beneath it wetter than it started.
- Growth on a painted wall often sits on top of a paint film that has already begun to chalk.
- Low winter sun never reaches the bottom third of a wall behind a fence, and it shows.
- Where a chimney is no longer used, rain that once dried out now sits in the stack and shows on the wall below.
- An untreated wall carries a spore load already, so regrowth after a rinse is faster than first growth ever was.
On site in Cofflete
- 1.Render beads and stop ends are inspected as work reaches them, because a lifted bead traps water behind the finish.
- 2.The elevation is walked first and anything loose, open or already failing is noted before a drop of water goes near it.
- 3.Vents serving a boiler or flue are checked and left uncovered, with the elevation around them worked dry.
- 4.Any window left open is closed, or that section is skipped and left for a second visit.
- 5.The van is parked so hoses do not cross a footpath, and matting goes down where they have to.
- 6.Where a wall runs straight down to a lawn, a run of sheeting is pegged along the base instead of relying on dilution alone.
- 7.Guttering above a worked elevation is checked for standing water, because a drip mid-treatment ruins an even finish.
- 8.Photographs are taken of anything found in poor condition, so it can be shown rather than described.
- 9.Beds and borders at the foot of the wall are soaked with clean water first, so any run-off arrives diluted.
- 10.On render below a flat roof edge, the drip detail is checked, because a failed one puts the stain straight back.
Local detail that changes the job
- Typical wall finish here is painted render and stone, which sets the cleaning method.
- Brixton sits about 2.3 miles from Cofflete on our round, so visits are often shared.
- Typical roof covering here is slate, which affects what washes down onto the walls.
- Access is usually via A379.
- PL8 covers 5 town hubs and 8 villages or districts in our radius.
Preparing a estuary hamlet property
- Say if the elevation is overlooked by a neighbouring window that should stay shut.
- Mention shared access or a right of way that we will be crossing.
- Point out ground-floor windows that are painted shut, as they need different masking.
- Say if any part of the wall has been jet washed before, and roughly when.
- Say if the property has a flat roof section that we would be working above.
- Mention any cladding or timber detail that you would rather was left alone.
- Let us know if the property is listed or in a conservation area, as it affects method choice.
- If parking needs a permit or a bay suspension, tell us early.
Sequencing the outside of the house
Patio joints are checked before the wall above them is treated, since loose sand washes into puddles.
Glass is done last on any multi-service visit, since it picks up whatever the earlier stages put in the air.
Where gutters need repair rather than clearing, that goes ahead of any cleaning at all.
Conservatory roofs go before the wall above them, then get a final rinse afterwards.
Asked most often in PL8
- Will the colour come back?
- If the original finish is sound, the colour underneath is usually still there and comes back with the growth removed.
- How long before I can repaint?
- Several dry days after the wall has been treated and rinsed.
- Do you clean UPVC panels and door surrounds?
- They are wiped by hand rather than sprayed.
- How long does a visit take?
- A typical two-elevation job is a few hours. A full wrap-around on a larger property is a day.
- Do you move furniture and pots?
- Anything within the spray arc is moved and put back where it was found.
- Can you tell from a photo whether it will clean up?
- Usually yes for surface growth. Staining that is in the material is harder to judge without seeing it.
- Do you cover air bricks the whole time?
- Covered while the wall around them is worked and uncovered before we go.
- Do you work on bungalows differently?
- Only in that everything is reachable from the ground, which makes the visit shorter.
Close to Cofflete
Cofflete wall softwash, in short
Cleaning reveals condition. Sometimes that means finding a repair, and it is better found than hidden under moss. Where the cause is plumbing, cleaning is a cosmetic answer to a practical problem. Killing growth and removing growth are two different jobs, and only one of them lasts. Monday to Saturday, 8am to 7pm.
Check the gutter line too
If the staining starts at the top, the gutters are worth looking at in the same visit.
Quote for a Cofflete property
Monday to Saturday, 8am – 7pm