Give the first coat 3 hours to dry and then apply a second coat using a roller brush or sprayer download our spray specs.
Drylock on chimney in attic.
If rolling or spraying back brush if necessary to fill in all the pores and pinholes.
It has happened and usually isn t discovered until people have spent a terrible sum fixing everything else.
If the corbelled chimney flue has sagged along with the roof the chimney may be cracked and open at this point even though other cracks were not seen.
Frequently asked questions q.
Fix any cracks in the mortar or if the chimney is severely damaged re point the chimney.
Our photo at left shows severe movement and openings in this brick chimney in an attic close to the roof surface.
Fortunately you can use masonry waterproofer to protect your home from the incursion of rain or groundwater.
If using a brush work drylok floor wall masonry waterproofer into the pores of the masonry.
It s much easier to apply because of its smooth creamy consistency and one step application saves considerable time.
Give the first coat three hours to dry and then apply a second coat using a roller or brush.
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Clean the chimney make sure all mold mildew and efflorescence are completely removed.
Colonial masons often brought a more central chimney straight up into the attic floor then built the chimney on an angle specifically to cause it to exit the roof at the roof s highest point the ridge.
Another event that could happen although i have never heard of it actually happening is that you could get so much moisture in your attic that it could condense and roll down the stringer onto your chimney.
If using a brush work the drylok original masonry waterproofer into the pores of the masonry making sure to fill all pores and pinholes.
For brick stone and concrete surfaces moisture can be damaging over time.
In the attic inspect the chimney thoroughly at all accessible surfaces floor to roof.
If using a roller back brush the first coat to fill all pores and pinholes.