To speed up sheet membrane installation, the author cuts, dry-fits, and folds all sections before applying adhesive. First, he positions the cut sheet.
Tiling Over Plywood, Images 8-16
He secures the back of the sheet with weighted buckets, and lifts it out of the way.
Tiling Over Plywood, Images 8-16
He folds the loose end back, weighing it down with tiles while he prepares to spread adhesive.
Tiling Over Plywood, Images 8-16
When the contact cement becomes tacky (which takes about 10 to 20 minutes), the author unfolds the loose end of the membrane.
Tiling Over Plywood, Images 8-16
He laminates the sheet with a straightedge.
Tiling Over Plywood, Images 8-16
With the front of the sheet laminated, he pulls the back portion forward and spreads contact cement for the rest of the sheet.
Tiling Over Plywood, Images 8-16
For a flat and leakproof seam in the sheet membrane, the author lays down two beads of manufacturer-supplied sealant.
Tiling Over Plywood, Images 8-16
He flattens the seam with a straightedge. Sealant squeeze-out indicates the seam is closed.
Tiling Over Plywood, Images 8-16
Once the membrane has been installed with Noble's contact-type adhesive, tile layout and installation should follow as soon as possible to lessen the risk that the membrane surface will get dirty or damaged.