Damp Proofing your home

Coating Your Foundation

Surface preparation:
Before coating, the surface must be clean and in good condition. Fill all holes, cracks, and joints with cement mortar so the surface is as smooth as possible.

To dampproof with Henry 107 Asphalt Emulsion:

1. Moisten the concrete wall with a fine mist of water.
2. Apply a priming coat of Henry 107 Asphalt Emulsion, at a rate of 1.5 gallons per 100 square feet with a 4-knot soft-bristle brush. Avoid over-brushing.
3. Allow the first coat to dry completely. Do not moisten surface before applying the finish coat.
4. Apply the finish coat at full strength (do not dilute), at a rate of 3 gallons per 100 square feet.

Drying time for each coat is 8 to 12 hours in warm, dry weather. Cool and humid weather can extend the drying time of each application to a week or more. Test for dryness in the slowest drying area by rubbing the surface vigorously with wet fingers. The coating is dry if no stain transfers to your fingers.

To damp proof with Henry 101 Non-Fibered Foundation Coating:

1. Apply a priming coat of Henry 101 Non-Fibered Foundation Coating at a rate of 1.5 to 2 gallons per 100 square feet with a soft-bristle brush. Do not thin.
2. Allow the first coat to dry completely.
3. Apply the finish coat at a rate of 1.5 to 2 gallons per 100 square feet.

Allow each coat to cure overnight before applying a second coat or backfilling with dirt. While solvent-based coatings must be applied to a dry surface, they should not wash off or be damaged by rainfall before they are cured under normal circumstances.

IMPORTANT: No damp proof coating will work if it is damaged or scraped off when backfilling, or if the foundation wall itself cracks.

For additional waterproofing/damp proofing application instructions, email Henry Technical Services, or call them at 1-800-486-1278.        

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