With the current water
crises in Cape Town it's now pretty clear that every home should
invest in at least one water tank to harvest and store rainwater
in but what about your roof and gutters? The materials your roof
tiles are made of will depend on whether you can drink the rainwater
you harvested or not.
Most folks in Cape
Town don't know this but some roof tiles contain lead and as most
of you know it's very toxic to humans so make sure your roof tiles
do not contain lead as lead is also a carcinogen. Asbestos roof
sheets are also a big no-no as these fibrous minerals have been
known to cause cancer as well so you really don't want to drink
water flowing from a asbestos roof into your water tank. Other
roofing solutions that could solve this problem would be to do
a complete roof replacement with either cement tiles or Zincalume
roof sheets. Neither one of the two contains lead or asbestos
which makes it very safe to harvest rainwater from and could last
for up to 25 years if installed properly by a professional
roofing company.
Another precaution
to implement would be to high pressure clean your roof to remove
all the bird droppings, moss or fungus as fungus in bird droppings
of pigeons, starlings and house sparrows can cause transmissible
diseases like histoplasmosis which can be fatal if spread throughout
the body.
If lead flashing was
used to line the valleys of your roof or to waterproof your chimney
and parapets walls you will need to remove it and replace it Unitorch.
This heat fused method of waterproofing is locally manufactured
in Cape Town to suit our unique weather conditions and safe for
harvesting rainwater.
In the end it's either
investing in a proper roof that's free of toxins and safe for
harvesting drinking water or investing in a decent water filtration
system but when it comes to drinking water there's no elevator
you've got to take the stairs.
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