If we re talking about common roofing jobs like pointing a chimney laying ridge tiles or flaunching the top of a chimney i would recommend a 3.
Roof tile pointing mortar mix.
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Oldcastle sakrete roof tile mortar mix is a mixture of high strength masonry cement and sand.
Meets astm c 270 specifications for type m mortar and meets south florida and metro dade building code requirements.
Because roof tiles are located in an exposed location that s likely to experience rainfall a strong mix should be used.
In addition to providing a mechanical fix you ll need to ensure that a suitable mortar mix is used.
Unfortunately some profiled roof tiles require a very thick bedding of mortar so to reduce the risk of cracking sharp sand should be introduced to the mix for most tiles.
Best mortar mix for roof tiles.
How much cement in a roof mortar mix.
This is a beginners guide to pointing up.
As the cement mortar or flexible compound breaks down or cracks water can reach the inside of the roof.
Roof cement is primarily used to hold roof tiles hip tiles and ridge tiles securely in place it also keeps out rainwater.
Bed the tile in position and remove any mortar that may have been squeezed out when placing the tile.
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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.
1 mix 3 parts sand to one cement.
Granules in the gutter.
Jad our qualified roofing specialist teaches you how to point your tiles using monier s flexible pointing for ridge tiles in this instructional video.
Quikrete roof tile mortar is a preblended mortar designed to be a primary or secondary attachment system for roof tiles.
Great for brickwork chimneys or roof details like flashings.
The nhbc has guidelines which state that an acceptable ratio for roofing mortar is 3 1 sharp sand cement.
Roof leaks and excess moisture are two common signs that the pointing is failing.
If the pointing is worn or damaged the roof tiles may.
The pointing is responsible for holding roof tiles in place.
Pre mixed roof mortars are also available that are accepted by the nhbc.
Check out our range of roof tile pointing products at your local bunnings warehouse.