Clean the roof tiles with a high pressure water spray.
Removing roof tiles australia.
This will remove all the moss and lichen as well as any built up dirt.
Spray the entire roof thoroughly.
If a tile becomes loose it needs to be rebedded.
Start on lowest row of shingles and work your way backwards to the upper part of the roof.
This will prevent the solution from draining in your direction.
This will add to the cost and the length of time it takes to install the roof.
Give the anti moss spray time to do its job and then use the high pressure cleaner to wash the tiles down.
When a roof repair specialist does repointing they follow a step by step procedure that includes.
Continue spraying until you see runoff then let the chemicals sit for 15 20 minutes to soak in and begin attacking the mold.
Of dish soap to help the vinegar cling to the moss and lichens.
The vinegar should be labeled with its acetic acid strength which shouldn t be more than 5 percent.
Begin by lifting up the next door overlapping tile.
For best results mix the wet forget and spot spray the lichen leave for 10 15 minutes and then respray the lichen and the entire roof to ensure the lichen absorbs the wet forget thoroughly.
And applying mortar and rebedding the tile.
Removing the old bedding.
Preparing the roof and tile for rebedding.
If you have an old asbestos roof the cost of removing the roof will be higher and you will probably have to hire an asbestos removal service to remove and dispose of the asbestos tiles.
This will lift the overlapping tiles on the row above so the tile you want to remove should come out easily.
Do this using two pieces of timber to hold them up.
Removing a tile from the roof.
Pour the mixture into the spray bottle.
Then use a brick trowel to lift up the broken over the baton underneath and slide it down and out.
If you are replacing a lighter roof such as a metal roof with roof tiles you may need to have the roof reinforced.
For an average 3 bedroom tile roof with lichen you would require 3 x 5 litre packs depending on the total area covered with lichen.
Checking for loose tiles.
Once you have safely gotten to the broken tile you ll need to slightly lift the tiles that overlap the one to be removed.