TAMKO Tile Underlayment: Mechanical Fasteners Versus Adhesive Attachment
Bulletin dated: August 28, 2019
TAMKO permits Awaplan and SA Cap beneath mechanically fastened concrete or clay tile. Mortar-set tiles also require mechanical fastening under this notice
TAMKO technical bulletin: Use of Awaplan and SA Cap as Underlayment for Concrete and Clay Tile.
What this means for your roof
TAMKO permits Awaplan and SA Cap beneath mechanically fastened concrete or clay tile. Mortar-set tiles also require mechanical fastening under this notice. Foam or adhesive attachment is not permitted because interaction with the modified asphalt may weaken the bond. Tile attachment and underlayment compatibility must be considered together.
A useful question for your contractor
Is the tile attachment method approved for the selected underlayment?
Ask for the answer to be tied to the actual roof condition and the exact product being installed. Keep the agreed repair or installation detail with your estimate and project photos.
Bulletin dated: August 28, 2019. The date shown identifies the manufacturer document used for this summary.
Read TAMKO: Use of Awaplan and SA Cap as Underlayment for Concrete and Clay Tile
This homeowner summary explains the cited bulletin. The complete manufacturer document and current product instructions govern the installation details. A requirement for one manufacturer or product should not be transferred to another without checking.