Tile Roof Soft Washing
Island Walk

Island Walk is a gated DiVosta community of roughly 1,850 homes between Logan Boulevard and Vanderbilt Beach Road, built from about 1998 to 2004. Lakes run through the whole property, and the town center sits in the middle. Roofs here face a combination that algae loves: morning dew that lingers over open water, afternoon storms in summer, and long stretches when the slope facing the lake never fully dries.

Why the streaks show up on one side first. The black streaks on a Florida roof are colonies of a cyanobacterium usually called Gloeocapsa magma, often joined by green algae and lichen. They thrive where a roof surface stays damp and shaded. On a lakefront lot in Island Walk that is often the rear slope, plus any slope shaded by an oak or palm. Owners frequently notice a roof that looks clean from the street but dark from the dock or the walking path. The lake-facing slope stays damp after dew and rain longer than the street side, and lakefront exposure commonly brings black streaking to that slope first. Treating every slope keeps the color even rather than leaving one side brighter.

Concrete tile is common here. Listings in Island Walk regularly show tile roofs on concrete and stucco homes; a 2001 single-story house on Prescott Lane, for example, is listed with a tile roof and a lake-front view. Concrete tile is porous, so growth roots into the surface rather than sitting on top. A pressure washer can blast it off, but it also strips the surface and can crack tiles or loosen ridge mortar. We apply a soft wash solution instead, give it time to work, and let the rain finish the rinse in the days that follow.

Three building types, three approaches. Single-family homes such as the Oakmont and Carlyle plans are cleaned as one roof for one owner. The attached villas, including the Capri plan, share a roof line with the unit next door, so cleaning one half and leaving the other creates an obvious line down the middle. The Aruba-style townhomes are two stories, which means a taller ladder setup and more care over the roof edges and screened lanais below.

Talk to your neighbor on a villa. On a duplex villa, the best result comes from cleaning both halves on the same day. We are glad to quote both owners together and send each a separate invoice. If your neighbor is away for the season, we can still do your half, but we will tell you in advance that the color difference may show until the other side is done.

Who decides about the roof. Island Walk listings describe the HOA as covering exterior maintenance, and the association’s Architectural Control Committee keeps a separate roof application form. Whether roof cleaning falls under the association or the owner depends on your governing documents, so ask the management office before you book. Cleaning does not change color or material, but any repair or replacement should go through the committee first.

Protecting the lake. With water on so many lots, runoff matters. We wet down plants and lawn before applying solution, direct rinse water away from the bank, and avoid spraying in windy conditions. We dilute the solution and use only as much as the roof needs. On lakefront lots we work the runoff away from the water’s edge.

Ridges and mortar. On a roof that is more than twenty years old, the mortar under the ridge and hip tiles is often stained, crumbling or cracked. Our tile roof and ridge cap treatment pays extra attention to those lines. If we find loose ridge tiles or cracked field tiles, we photograph them and let you know so a roofer can take a look.

Pricing. A single-story roof begins at $299 and a two-story townhome roof at $399. Larger single-family homes with complex roof lines begin at $499. Tile roof cleaning with ridge cap treatment begins at $349. A roof and house wash together begins at $599, which is a popular choice since lake-facing stucco usually needs the same attention.

Signs your roof is due. Look for dark vertical streaks running down from the ridge, green or grey patches on the shaded slopes, and fuzzy lichen spots that look like small coins stuck to the tile. Walk to the far side of the lake and look back at your house; that view usually tells you more than the one from the driveway. If the gutters overflow with granular grit after rain, mention it when you call so we can check them while we are up there.

How long a clean lasts. Lakefront roofs tend to come back sooner than roofs farther from water, because the conditions that grew the algae never go away. Most owners find that a soft wash keeps a tile roof looking good for a couple of years, and a light maintenance treatment in between can stretch that further. Shaded slopes may need attention sooner. Tile that has sat in North Naples humidity for 20-plus years has usually been through several cycles of algae growth, and a roof that has never been soft washed tends to carry layers of it.

Before we arrive. Move vehicles out of the drive if you can, and bring in anything fragile from the lanai. We register at the gate in advance, coordinate with your property manager if you are out of town, and send before and after photos when the job is done. For screened areas below the roof, see our Island Walk lanai and pool cage page.