Every three to five years and never have biological stains. Again be sure to check out our other spray. And forget products to treat roofs siding decks outdoor furniture and more spray.

Plus it's biodegradable. And eco-friendly you just spray it and forget it it really is that easy. So let's get started with spray and forget no rinse house and deck cleaner spray.

Apply Wet & Forget Outdoor as soon as the weather warms to remove unsightly stains and growth that have been hiding in winter. Spring rain showers work with the product to clean dirty outdoor surfaces for you – no rinsing or scrubbing required!

Spray & Forget offers the simplest method of use! Rinsing is not required or recommended, and rain is not necessary at all for the process to work its magic on your roof.

4-5 hours When is the best time to apply Wet & Forget? Apply Wet & Forget on a cool, dry, windless day, with no rain in the forecast for 4-5 hours. Often the evening or early morning is the best time to apply; when evaporation is minimal. This way, the treated surface stays wet with Wet & Forget for an extended period.

Just thoroughly wet the DRY surface with Wet & ForgetⓇ and then forget about it. The elements (wind and rain etc) will slowly wash off the stain. If the surface to be treated is not fully exposed to rainfall or is vertical, some assistance may be required to remove the stains.

Wet & Forget will work over time with the rain and wind to gently clean up the green and black stains.

A: On average, green stains will disappear in 1-3 days, black stains on non-roof surfaces will disappear in 1-8 weeks, and roof stains will disappear in 30-180 days.

4-5 hours Apply Wet & Forget on a cool, dry, windless day, with no rain in the forecast for 4-5 hours. Often the evening or early morning is the best time to apply; when evaporation is minimal. This way, the treated surface stays wet with Wet & Forget for an extended period.

4-5 hours When is the best time to apply Wet & Forget? Apply Wet & Forget on a cool, dry, windless day, with no rain in the forecast for 4-5 hours. Often the evening or early morning is the best time to apply; when evaporation is minimal. This way, the treated surface stays wet with Wet & Forget for an extended period.

Just thoroughly wet the DRY surface with Wet & ForgetⓇ and then forget about it. The elements (wind and rain etc) will slowly wash off the stain. If the surface to be treated is not fully exposed to rainfall or is vertical, some assistance may be required to remove the stains.