Next to seal the pores coat plywood with an oil based primer.
Use roofing for pond liner.
If glue is needed use an clean.
Some epdm pond liners might recommend the use of glue to ensure the tape sticks to the liner.
Product overview the seaming tape will allow you to connect and seal two or more pieces of pvc or epdm liner together to create a bigger pond.
The joint between sheets should be positioned directly over a roof truss and securely fastened to prevent warping.
Clay particles are small and retain water well.
If you completely want to avoid any kind of liners in your pond you can use lime and clay cover to make your pond retain water.
The garage roof has a parapet on three sides so i lined the whole parapet and secured the liner end with the cap.
The product is non toxic and the only thing on the rubber when you get it is talcum that keeps.
The website says.
The roof area is 5metres x 5metres.
Guttering for rainwater harvesting on the downhill side.
Allow an overnight cure.
Lime and clay cover.
I started on one side making sure there is plenty to go all the way over the parapet.
Although this procedure results in a weaker roof structure water tightness can be achieved if the application is performed carefully.
In this method a layer of quick lime is used beneath the clay layer and then lightly compacted.
Then i unfolded the liner to cover the whole roof.
Some rubber roof or epdm manufacturers market their product to be used as a pond liner.
Read the liner and tape labels carefully to see if this is necessary.
There is a pond liner product cheaply available in the uk called flexiliner pond liner ldpe.
The pond liner was triple folded.
Use this waterproof adhesive to connect pond underlayment as well.
When covering a flat roof you want to make sure there is no overlap where moisture can wick under.
The triple layer liner is manufactured out of a core of hard wearing ldpe low density polyethylene which is then coated on both sides with a uv rot resistant laminate.
I m planning on using a pond liner for the water proofing on top of osb3 boards.
This durable seaming tape is safe for fish and plants and is designed to resist cracking.