I m planning on using a pond liner for the water proofing on top of osb3 boards.
Use roofing for pond liner.
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.
This durable seaming tape is safe for fish and plants and is designed to resist cracking.
When covering a flat roof you want to make sure there is no overlap where moisture can wick under.
The pond liner was triple folded.
Securing the pond liner.
Although this procedure results in a weaker roof structure water tightness can be achieved if the application is performed carefully.
When choosing a rubber pond liner it is important to choose one that is specifically being sold into the pond market and not into a different industry such as roofing.
I started on one side making sure there is plenty to go all the way over the parapet.
The website says.
The joint between sheets should be positioned directly over a roof truss and securely fastened to prevent warping.
The product is non toxic and the only thing on the rubber when you get it is talcum that keeps.
Use this waterproof adhesive to connect pond underlayment as well.
Allow an overnight cure.
Read the liner and tape labels carefully to see if this is necessary.
Although the two industries may seem similar roofing membranes may contain certain chemicals that could be dangerous to fish and other life in your pond.
If glue is needed use an clean.
Lime and clay cover.
There is a pond liner product cheaply available in the uk called flexiliner pond liner ldpe.
Some rubber roof or epdm manufacturers market their product to be used as a pond liner.
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.
The garage roof has a parapet on three sides so i lined the whole parapet and secured the liner end with the cap.
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.
Some epdm pond liners might recommend the use of glue to ensure the tape sticks to the liner.
Next to seal the pores coat plywood with an oil based primer.
Guttering for rainwater harvesting on the downhill side.
The roof area is 5metres x 5metres.