Mortar Mix For Roof Valleys

Strong cement isn t likely to wash out.

Mortar mix for roof valleys. Meets astm c 270 specifications for type m mortar and meets south florida and metro dade building code requirements. Metro dade project number 11 1222 07. Developed specifically for roofers remix roof tile bedding mortar solves the problem of using the wrong mortar mixes for bedding ridges hips and valleys. If an incorrect ratio is used this is the outcome click to enlarge.

Oldcastle sakrete roof tile mortar mix is a mixture of high strength masonry cement and sand. Loose flaky cement under ridge tiles. It was also highly recommended for its workability slump adhesion and strength. I am going to repair the work myself and have been told that a 4 1 mix using sharp sand and a small amount of pva added to the water is the way to go.

Designed to set clay and cementitious roof tile. It s specifically designed for bedding clay and concrete roof tiles. Type n mortar mix has a medium compressive strength and it is composed of 1 part portland cement 1 part lime and 6 parts sand. The correct mix ratio is 3 parts sand to 1 part cement this is much stronger than bricklayers use 5 1 as the cement on the roof must withstand more driving rain than a typical brick wall.

Tested extensively by the nhbc it performs as well as the best custom mix mortars. It appears that this aspect and the mortar around the verges are not covered in any guarantee.