Clean dust dirt and debris from the area to be patched.
How to apply white cement on roof.
Also the process of applying the white cement is called wash or white wash.
Roll modified bitumen roofing sheets over the entire roof.
The standard mix of the white cement requires to mix the white cement with water in the ratio of 2 1 proportions of water and white cement.
Map out your roof and make each pail fill that area.
Start at 1 end of the roof and unroll the bitumen to the other end.
Apply roof cement with a trowel going to a depth of about 1 8 inch.
Repeat this with each roll until the roof is covered overlapping each sheet by about 3 8 in 0 95 cm.
Work in dry weather if possible.
White cement only needs water unlike the grey cement.
Not so with colored cement which sticks like crazy to cement even wet.
Work it into the hole or crack with the trowel or putty knife.
If an aluminum surface roof coating must be applied sooner to a new built up roof a water based emulsion coating should be used instead of a solvent based asphalt coating.
Don t thin the cement.
If you re using.
Painting with colored cement.
Apply a layer of the mastic or patching compound over the problem area cut and place a section or strip of patching fabric over the area spread an additional layer of roof cement or patching compound over the area let the patch cure.
When handling roof cement wear gloves to keep it off your skin.
How to use roof cement.
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This will enable you more control.
Use a 3 4 inch roller with basecoats and emulsions.
It is best to work in small areas rather than try to do all at once.
The procedure of applying white cement is quite easy.
Apply coating when the roof is dry and the sealant has set.
Bitumen roofing rolls can be large and heavy so get help carrying them up to the roof if necessary.
You will be using a 9 inch heavy duty frame inch paint roller for spreading coating on roof or 1 1 4 inch roller for dipping in pail and a 5 to 6 foot extension pole.
Use formulas designed to.
Fill small holes and cracks with roof cement.
An emulsion coating will provide a firm base on which to apply the aluminum coating 5 to 10 days after the emulsion has cured.