Go to roof online s vapor barriers page.
Peel and stick roof to concrete.
Using peel and stick underlayment makes a better roof.
They all used rolled asphalt felt material commonly referred to as tar paper.
Peel and stick flashing tapes types uses applications.
The only way to improve the quality of the underlayment was to make it thicker or add another layer.
Until recently all shingle roofs had the same type of underlayment.
Ideal for use on roofs gutters skylights windows doors flashings walls foundations and many other surfaces.
Rubber flexx waterproofing and seam tape is an easy to use peel and stick repair material to seal and fix leaks and problem areas.
Direct attachment peel stick to the plywood then use 2 foam process to attach the concrete roof tiles.