Scraping and brushing are effective methods for removing moss from roofs, with scraping being best for thicker moss growth and brushing for routine maintenance. …Tools. Margin trowel. Hammer. Caulk gun. Ladder. Garden Sprayer. Next Up In Roofing. In this how-to video, This Old House general contractor Tom Silva shares tips for keeping a roof free of moss and mold.3 days ago · Nothing happened for a couple of months; then slowly the lichens and moss began to turn brown and gray. It took over a year for all the growth to die, dry up, and fall off the roof. It was only then that damage to the roof granules became obvious. I installed “35-year” warranty shingles when I built the house 21 years ago.Soft, long handled scrub brush (optional) Sprayer. Hammer. Materials. Trash bag. Moss removal solution. Zinc strips (optional) Copper strips (optional) Roofing nails. Moss growing on your...Jul 17, 2019 · We offer a free preliminary roof inspection. This allows us to identify cracks, leaks and other issues causing roof damage. We will fix any problems we find so your roof will stay strong and clean longer. Additionally, we do not just pressure wash your roof. Our roof cleaning treatments inhibit the growth of moss, algae, and lichens.Feb 19, 2023 ... How do I clean moss off my roof? · Safety first: Before starting the cleaning process, it's essential to ensure that you're safe. · Remove de...May 30, 2018 · The number one way to keep your cedar roof moss free is to remove debris regularly. Debris on your cedar roof can trap moisture and damp air, causing your cedar roof to grow fungus. Cutting back branches from hanging over the roof, and preventing rubbing between a branch and the roof system will also keep the roof dryer in a more uniform way.May 30, 2022 · 1. Soak any areas affected by moss with water. The easiest way to do this is to use your hose. 2. Work from the top down to rinse and scrub. This will ensure that the water runs down off the roof. 3. Scrape away the moss with a long-handled brush. Always do this gently to ensure you don’t cause damage to your roof. Mar 9, 2023 · Step 4: Spray On Moss Remover. Apply moss killer to all affected areas using your pump sprayer or large spray bottle. Thoroughly soak the moss to ensure proper removal. If you’re using a store-bought chemical solution to kill moss, let it sit according to the manufacturer’s instructions on the package. · Vacuum the fabric, shampoo, rinse then leave until almost dry. Apply the cleaner using warm water, aggitate with a soft nail brush and leave for 30 minutes. Rinse off with an open ended hose and leave to dry. Your roof fabric will be perfectly clean and be ready for re-dying (if necessary) and then re-proof.Use a long-handled push broom to carefully brush off any loose chunks of moss and lichen. Don’t be too aggressive or you could damage the shingles. Relocate the ladder as needed to reach different areas of your …The main difference between roof treatment and roof washing is that roof treatment will take up to 3-4 months to get your roof clean after that treatment has been applied. This is because after the moss and mould are killed, it is then dependent on the wind and rain to wash away the decaying moss and mould which is much more gentle on your roof ...There are several methods for the removal of moss and lichen: · Spraying moss with a toxic wash · Fitting copper to inhibit moss growth on the roof · Scraping&...Feb 25, 2021 · High-pressure cleaning is an effective and efficient method of removing the eyesore and restoring your tiles to a near-new look. To clean your roof, you need a good ladder, fall protection such as an edge barrier or harnesses and ropes, PPE, and a powerful pressure cleaning machine. We recommend a petrol-powered unit with at least 3500psi …Moss can be removed from roof tiles by gently brushing it off if the growth is not too severe. · Applying moss killer is an obvious removal option, but be aware ...Jun 2, 2023 · Here are some basics: A hose or pressure washer to remove debris and moss. A stiff-bristled brush or scraper to remove moss and algae. A chemical solution for moss removal, if desired. When choosing a chemical solution, make sure to read the label carefully and follow the instructions to avoid damaging your roof. 3. Clear Debris. Before addressing the moss, remove leaves, branches, and other debris from your roof. This step ensures a clear working surface and prevents more moisture from accumulating. 4. Dry Brushing. Using a soft-bristle brush or a plastic scraper, gently scrub your moss covered roof. Nov 26, 2020 ... Re: Do I need to remove moss from my roof? ... The only time I removed the (considerable) moss build up the roof was when the gutters started to ...Jun 2, 2023 · Here are some basics: A hose or pressure washer to remove debris and moss. A stiff-bristled brush or scraper to remove moss and algae. A chemical solution for moss removal, if desired. When choosing a chemical solution, make sure to read the label carefully and follow the instructions to avoid damaging your roof.Feb 1, 2024 · How to Clean Moss Off a Roof Step by Step. Select a moss and mold remover cleaning product meant for roofs. You can buy a commercial product or mix a homemade formula of 1/2 cup dish soap to 2 gallons of water. To protect plants, patios, and porches beneath the work area, spread drop cloths. Place the ladder on stable ground and climb …Aug 19, 2020 · Use the brush to get rid of any moss around the roof edges. Pour distilled white vinegar into a bucket. The vinegar should be labelled with its acetic acid strength, which shouldn't be more than 5 per cent. Add 30 ml (1 fl oz) of washing up liquid to help the vinegar cling to the moss and lichens. Pour the mixture into the spray bottle.Nov 14, 2018 · The product needs to be diluted 1 part with 5 parts water in a garden sprayer. Soak the area of the roof that you are going to clean. Start at the furthermost point and work backwards, this ensures that you are walking on a dry surface. Generously apply the solution to the dirtiest sections of the roof. 1 gallon of water. Up to 1 quart of bleach (start small) 1/4 cup of heavy-duty cleaner like trisodium phosphate. Be careful not to mix any ammonia cleaner with bleach, as this can create a toxic compound that could kill you. If using these chemicals on your roof, do not simply pour them on the moss, creating runoff. Sep 6, 2023 · Apply Moss Remover. If you still need a chemical solution, use a pump sprayer ($32, Walmart) or large spray bottle to apply your preferred remover. Soak the moss and let the solution set according to the manufacturer's instructions. If you're using a homemade remover, let it set for about 20 minutes. May 14, 2020 ... This awesome video explains how IBEX Roof does moss treatments. This is our proven two-step method. First hit it with zinc, then scrape it ...Apr 7, 2023 · Bleach and water. Mix half chlorine bleach with half water and put it in a garden pump sprayer. Spray bleach solution on the problem area, allow it to sit for 15 minutes, and then rinse with a garden hose. Baking soda and water. Mix ½ cup of baking soda with a liter of water in your pump sprayer. Apply it to the mossy area of the roof, …Apr 6, 2023 · Knock as much of the moss off the roof with the hose as you can. Put any moss you collect into a trash bag for disposal. WARNING: Do not use a pressure washer, as this can damage shingles. 2 ... 5 days ago · Oxygen Bleach. Oxygen bleach will not damage your roofing, garden plants, or gutter system, but it requires more effort than chlorine bleach. It must be applied when the roof surface is cool, such as a cloudy day in autumn. You must keep the moss damp with the solution for at least 20 minutes. Using a scrub brush mounted on a pole, gently brush ...Scraping and brushing are effective methods for removing moss from roofs, with scraping being best for thicker moss growth and brushing for routine maintenance. …Jan 19, 2024 · Variation: If you want to remove moss without chemicals, you can combine 1 1⁄2 – 3 1⁄2 cups (350–830 ml) of white vinegar and 2 gallons (7.6 L) of warm water for your cleaning solution. [11] 4. Install strips of zinc or copper along the …Jun 30, 2015 ... It can take anywhere from a couple of weeks to 6 months for heavily infested areas of lichen to become free of dead debris. This quote is for ...Jul 17, 2019 · We offer a free preliminary roof inspection. This allows us to identify cracks, leaks and other issues causing roof damage. We will fix any problems we find so your roof will stay strong and clean longer. Additionally, we do not just pressure wash your roof. Our roof cleaning treatments inhibit the growth of moss, algae, and lichens.After this we then treat it with Moss Clear Pro biocide. This is a high-grade microbiological biocide to impregnate the roof tiles and stop germination of the ...5 days ago · If needed give the area a scrub! Once the moss is dead and yellow remove it and then give the surface a wash using a pressure washer or hose until the surface is clean and all the moss is removed. 6. Boiling Water. Using boiling water is another way that can remove moss from concrete.Aug 1, 2021 · Take between 1 ½ and 3 ½ cups of chlorine bleach and mix with 2 gallons of water. Mixing chlorine bleach with water helps to dilute the chemical and make it safe for cleaning your roof. Once you have the mixed solution take a garden sprayer and pour all of it inside. Using a garden sprayer is easy and safe for your roof.Jun 25, 2023 · By following the steps outlined in this guide, you can successfully remove moss from your roof and take preventive measures to minimize its return. Remember to prioritize safety during the process, and if in doubt, consult a professional roof cleaner. With a little effort and care, your roof will remain moss-free, providing you with a clean and ... Many homeowners (and websites) claim that you can easily and safely remove moss from your roof by using simple household cleaning laundry detergents like ...Aug 23, 2023 · Remove Moss From Your Roof in 6 Steps. Follow these steps for a fresh roof in no time. Preparing to Clean Moss Off a Roof . Cleaning moss growing on roof shingles is going to be a messy job. Water will splatter, and the green moss may end up on your clothes, possibly causing staining. Wear old clothing or a painter’s coverall. Feb 1, 2024 · How to Clean Moss Off a Roof Step by Step. Select a moss and mold remover cleaning product meant for roofs. You can buy a commercial product or mix a homemade formula of 1/2 cup dish soap to 2 gallons of water. To protect plants, patios, and porches beneath the work area, spread drop cloths. Place the ladder on stable ground and climb …Aug 8, 2017 · Step 1: Prep the area. Before you start, determine a project plan which includes your starting point, workflow, and containment. Be sure to remove furniture, move cars, and cover pools and hot tubs. As an extra precaution, wet down any vegetation that might receive overspray. Prep the roof by sweeping loose debris.Sep 21, 2016 · You can try brushing off algae and moss with a brush or broom with medium-stiff bristles, but don’t scrub too hard. You don’t want to separate the mineral granules from the shingles. If chunks of algae or moss or heavy stains remain on the surface after rinsing, let the roof dry, then spray on the bleach solution again. Wait 30 minutes and ...Dec 21, 2023 · 1 cup chlorine bleach. 4 cups of warm water. Spray bottle. Scrub brush. Rubber gloves. tb1234. Fill a garden sprayer or bottle sprayer with water and add the bleach. Put a pair of gloves on your hands to protect them from the solution. Spray an even layer of the bleach liquid over the surface of the affected area. Unlike most moss killers, MossOff is a chemical-free, natural moss killer that offers peace of mind due to its safety features and provides you with complete moss control. Works on any surface, Tarmac, concrete, roofs, decks, fence, lawns, etc. Safe to Children, Pets, Plants and Pond Life. Easy to Use - Mix with Water and Apply. May 24, 2023 · The first method is by far the simplest: After you've thoroughly wet the moss, liberally sprinkle the area with baking soda and let it work its magic in killing off the moss. When the moss turns brown, remove it from the area, either by hand or with a tool. The second option is to make a paste out of baking soda and water and then apply it to ...Apr 7, 2020 · The most effective method involves climbing onto your roof. Once you're on the roof, spray down the target area with a hose. Use a long-handled brush with soft bristles to scrub as much of the moss off as possible. Follow up with a roof-safe commercial cleaning solution to finish cleaning the area.2 days ago · Start at the top of the roof and work your way down. Scrape the moss: For tougher moss growth, use a putty knife or scraper to gently remove the moss. Take care not to damage the shingles. Rinse the shingles: Use a garden hose with a high-pressure nozzle to rinse off the shingles thoroughly.Aug 8, 2017 · Step 1: Prep the area. Before you start, determine a project plan which includes your starting point, workflow, and containment. Be sure to remove furniture, move cars, and cover pools and hot tubs. As an extra precaution, wet down any vegetation that might receive overspray. Prep the roof by sweeping loose debris.Aug 5, 2021 · 3. Hose down thoroughly. Garden hoses are invaluable for cleaning in the garden, including when learning how to clean garden furniture and conservatories. Once you scrubbed any dirt from your conservatory roof, the next step is to rinse it down with a garden how to help remove any streaks and clean away excess dirt. 4.5 days ago · Step 5. Solve any moisture problem that may be making the roof or other area hospitable to mold. Moss tends to grow on the north side of trees and structures, since that tends to be the side with the most moisture because the sun doesn't reach it. Cutting down a tree to eliminate shading on the roof or walkway may reduce the cooling and moisture.Dec 5, 2023 · Dilute the vinegar with equal parts water to get a 50/50 mixture. So, if you buy a gallon of vinegar, mix it with a gallon of water. Pour or spray the vinegar directly onto the moss on the roof ...Sep 26, 2017 · Step 3. Spray a pressure washer to remove the dead moss. Start at the top of the roof, pointing it down toward the ground so you don't spray water up and under the fiberglass shingles, causing a leak. Begin with a low setting, holding it at least 12 to 24 inches away. Increase pressure and hold the wand closer as necessary, being cautious …Kill the mould and mildew. Mix 1 quart of ordinary bleach with 4 quarts of warm water in a plastic bucket and pour the mixture onto the mould and mildew, thoroughly coating the fibreglass. Allow the solution to sit on the mould for about 15 minutes, essentially sterilizing the area. Rinse away using fresh water to eliminate the bleach.If you can access the moss from a stable set of ladders or a flat roof, then you can remove moss fairly easily and cheaply using a stiff broom and a trowel. Don’t scrub too hard; you …Aug 1, 2021 · Take between 1 ½ and 3 ½ cups of chlorine bleach and mix with 2 gallons of water. Mixing chlorine bleach with water helps to dilute the chemical and make it safe for cleaning your roof. Once you have the mixed solution take a garden sprayer and pour all of it inside. Using a garden sprayer is easy and safe for your roof.Moss pink is a flowering ground cover that thrives in rocky soil. Learn about growing, propagating, and using moss pink at HowStuffWorks. Advertisement This native of North America...Jan 20, 2016 ... To clean either algae or moss, the association recommends putting on protective gear and protecting plants, spraying with a 50-50 mix of ...It is best to reapply a good exterior cleaning solution at the first signs of regrowth. This will typically be every 2 to 3 years. We recommend having the roof re-treated just as the growths become visible again. This will result in an easier, faster application, require less cleaning solution, and any new growth will die off and clean up quickly. Spray the roof with moss killer. Fill a backpack sprayer or pump-style weed sprayer with moss and lichen killer. If using a granular product, mix it with water according to the manufacturer's ... Jul 24, 2023 · How to clean off roof moss with wet and forget. Mix 1 part Wet & Forget with 5 parts water in a garden sprayer; Spray the dry roof on a cool day to avoid rapid evaporation of the solution. Spray when rain is not forecasted within 4-5 hours and the temperature is at least 32° F. Be sure to saturate the moss thoroughly to allow the solution to ...Aug 1, 2023 · Typical price range: $374 – $606. Extreme low end: $200. Extreme high end: $1,000. For a typical roof cleaning job, you’ll most likely pay somewhere in the range of $374 to $606. But keep in mind, some cleaning methods take more time and work, so they cost more. Depending on your roof’s needs, you might end up spending as much as …Replacing a roof is a major home improvement project that can be expensive. Knowing the cost of replacing a roof is important for homeowners who are considering this type of projec...Ask This Old House general contractor Tom Silva helps a homeowner remove moss from his roof and prevent it from growing back.#ThisOldHouse #AskTOHSUBSCRIBE t...Sep 1, 2021 · Prepare your cleaning equipment, including filling a spray bottle with warm soapy water. Cover the floor and any furniture with a protective sheet. Using the spray bottle and a clean cloth, clean the inside of all roof glass and frames of the conservatory – rinsing in a bucket of clean water at regular intervals to keep the cloth keen.Oct 7, 2021 · Or, make a plant-friendlier solution of 1 cup oxygen bleach and 1 gallon of water. Home improvement expert Bob Vila says you can also mix 8 ounces of Dawn dish liquid or 1-1/2 to 3-1/2 cups of white distilled vinegar with 2 gallons of water.Moss can be brushed away as long as gutters are protected to prevent blockages for which we have gutter guards which are very easy to fit. However stubborn staining may need further work for which we recommend applying BATIFORT first and brushing before rinsing, then applying Baticlean CR to give longer term cleaning protection.How to clean moss off rooftops Step 1) Wash the roof with a waterblaster. Spraywashing is the easiest method for removing moss off roof surfaces. Begin at the apex of your roof. Make sure your waterblaster is at the lowest possible setting. Alternatively, if the shingles on your roof are particularly old or already damaged, you may want to use ...Ask This Old House general contractor Tom Silva helps a homeowner remove moss from his roof and prevent it from growing back.#ThisOldHouse #AskTOHSUBSCRIBE t...Aug 19, 2020 · Use the brush to get rid of any moss around the roof edges. Pour distilled white vinegar into a bucket. The vinegar should be labelled with its acetic acid strength, which shouldn't be more than 5 per cent. Add 30 ml (1 fl oz) of washing up liquid to help the vinegar cling to the moss and lichens. Pour the mixture into the spray bottle.5 days ago · Step 5. Solve any moisture problem that may be making the roof or other area hospitable to mold. Moss tends to grow on the north side of trees and structures, since that tends to be the side with the most moisture because the sun doesn't reach it. Cutting down a tree to eliminate shading on the roof or walkway may reduce the cooling and moisture.The trick is to aim the hose stream down the roof and keep the nozzle about 3 feet away from the shingles. Scrubbing asphalt shingles with a scrub brush is fine if you do it somewhat gently. Some granules may come off but not the ones that are deeply embedded in the hot asphalt. You must get this heavy moss and lichen build-up off the roof ...Feb 27, 2021 ... It will just grow back if you scrap it off. You would need to kill it.Aug 21, 2023 ... Spray/cover the moss with a hose pipe. · Scrape off the moss in stages, with a soft bristled brush. · Apply moss remover. · After 24 hours cle...Dec 18, 2023 · Cleaning moss from your roof can be done using a bleach or specialized moss cleaner. ... Gently sweep the moss off the roof using a soft-bristle brush or broom. Apply a mixture of equal parts water and vinegar to the mossy areas and let it sit for about 15 minutes before rinsing it off.Jan 11, 2024 · 3) Gather Tools and Materials: You will need a few essential tools and materials for the job: A roof-safe moss removal solution: Choose a commercial moss removal product or create a homemade solution of equal parts water and white vinegar or water and baking soda. A long-handled brush with stiff bristles or a specialized moss removal tool.Nov 29, 2020 · Algae growth on your RV roof can be hard if not impossible to clean. In this video I show you how a product called 30 Seconds Outdoor Cleaner can rid your RV... Oct 7, 2021 · Or, make a plant-friendlier solution of 1 cup oxygen bleach and 1 gallon of water. Home improvement expert Bob Vila says you can also mix 8 ounces of Dawn dish liquid or 1-1/2 to 3-1/2 cups of white distilled vinegar with 2 gallons of water.Jan 19, 2024 · Variation: If you want to remove moss without chemicals, you can combine 1 1⁄2 – 3 1⁄2 cups (350–830 ml) of white vinegar and 2 gallons (7.6 L) of warm water for your cleaning solution. [11] 4. Install strips of zinc or copper along the …Mar 7, 2024 · Dry powder moss killer is best applied when a slow, steady rainfall is predicted in the weather forecast. Dispense the moss killer in uninterrupted horizontal lines about 2 to 4 feet apart, parallel to the roof ridge. Use a spoon, scooper, or hand trowel, depending on the size of the moss problem. Using a garden hose with a low- to medium-pressure stream, start spraying the moss at the top-most peak in the roof. Continually work the spray at a downward ...Jun 27, 2019 · Before long the moss will spread and get out of control, quickly becoming a much larger job. The summer months, when the weather is dryer, is the best time of year to have the work carried out. It is very dangerous to carry out roof cleaning in wet, windy or icy conditions, so if you are considering having this work done, make sure don’t ...The Bio-Shield Cleaning Process. Lichens are easy to kill with Bio-Shield, however, a specific formulation and application method is used on your Colorsteel roof to ensure an effective kill of black algae. Once applied to your roof, Bio-Shield will kill all the moss, algae and lichens within 3 to 4 hours. You will notice distinct colour changes ...Need specialist roof cleaning in Wellington? Call today on 04 528 8084 or 0800 MOSS OFF. We do it all, from maintenance to repairs! ... Moss Off Roofing Solutions Ltd - PO Box 40 470, Upper Hutt - T: 04 528 8084 / 0800 MOSS OFF - …Jun 27, 2019 · Before long the moss will spread and get out of control, quickly becoming a much larger job. The summer months, when the weather is dryer, is the best time of year to have the work carried out. It is very dangerous to carry out roof cleaning in wet, windy or icy conditions, so if you are considering having this work done, make sure don’t ...Jun 9, 2022 · The best way to clean moss growth off your roof surface is to softly broom brush looser moss, leaves, tree branches and other debris on the roof. Soak the entire roof with plain water from a garden hose. Next, spray the roof and remaining moss with a bleach solution of half water, and half chlorine bleach.
Jul 26, 2022 · Mix the vinegar with 2 gallons of water in a large bucket. Pour the solution into the garden sprayer and climb the roof with your ladder. Check everywhere the moss is growing and spray the solution. Wait between 15 and 20 minutes for the moss to soak in the solution. Rinse thoroughly with plain water.. Detroit food
· Vacuum the fabric, shampoo, rinse then leave until almost dry. Apply the cleaner using warm water, aggitate with a soft nail brush and leave for 30 minutes. Rinse off with an open ended hose and leave to dry. Your roof fabric will be perfectly clean and be ready for re-dying (if necessary) and then re-proof.When it comes to roofing, choosing the right shingles can make a huge difference in the look and longevity of your home. With so many different types of roofing materials available...All debris removed from the roof and gutters will be removed from your property. Prices Start From £495*. Semi Detached/Detached House. A small detached house is a single free-standing residential building. This would be cleaned using the Manual Moss Removal method followed by a roof treatment. To finish, we would clear away the debris from ...Aug 23, 2023 · Remove Moss From Your Roof in 6 Steps. Follow these steps for a fresh roof in no time. Preparing to Clean Moss Off a Roof . Cleaning moss growing on roof shingles is going to be a messy job. Water will splatter, and the green moss may end up on your clothes, possibly causing staining. Wear old clothing or a painter’s coverall. If you can access the moss from a stable set of ladders or a flat roof, then you can remove moss fairly easily and cheaply using a stiff broom and a trowel. Don’t scrub too hard; you don’t want to damage the roof. Use the trowel to loosen stubborn moss, and brush it away with the broom. Jun 9, 2022 · The best way to clean moss growth off your roof surface is to softly broom brush looser moss, leaves, tree branches and other debris on the roof. Soak the entire roof with plain water from a garden hose. Next, spray the roof and remaining moss with a bleach solution of half water, and half chlorine bleach.Price Per Bottle €36.00. Add to cart. MossOff Chemical Free: Chemical-free MossOff kills and prevents moss, the world’s greenest, safest and most advanced product. MossOff is a highly effective moss killer that provides long-lasting results. Unlike most moss killers, MossOff is a chemical-free, natural moss killer that offers peace of mind ...In recent years, solar energy has gained significant popularity as a clean and sustainable power source. With the increasing demand for renewable energy solutions, more and more ho...Feb 19, 2023 ... How do I clean moss off my roof? · Safety first: Before starting the cleaning process, it's essential to ensure that you're safe. · Remove de...Oct 17, 2007 · I would say cut up copper pipe off-cuts into 1/2" lengths , split them and hammer them flat then put on the roof with a maximum density on the "uphill" side, so any toxic stuff that is washed off can then flow downhill and kill the moss lower down. The white chippings ( or cheapo pebbles) are to reflect the sun as this degrades the roofing felt.Dec 21, 2023 · 1 cup chlorine bleach. 4 cups of warm water. Spray bottle. Scrub brush. Rubber gloves. tb1234. Fill a garden sprayer or bottle sprayer with water and add the bleach. Put a pair of gloves on your hands to protect them from the solution. Spray an even layer of the bleach liquid over the surface of the affected area.Dec 21, 2023 · 4. To remove algae from a roof, using a mixture of water and bleach (one part bleach to three parts water) can be effective. However, it is crucial to take safety precautions, wear protective gear, and avoid using a pressure washer, as it can damage the shingles. 5. Below the roof, spray any plants or grass with water to protect them from any runoff bleach that may fall off the roof during the next steps. 5. In the pump sprayer, pour a mixture of roughly 1/3 a gallon of bleach to 1½ gallons of water. 6. Spray the bleach mixture on the roof. The bleach will kill off any leftover moss over the next couple ... May 14, 2020 ... This awesome video explains how IBEX Roof does moss treatments. This is our proven two-step method. First hit it with zinc, then scrape it ...Jul 12, 2023 · Follow the steps below: Place a ladder in a steady position. Climb onto the roof using the ladder. When safely on the roof, use the trowel to scrape off the moss or algae from the tiles. Use the stiff broom to sweep the scrapings off the roof. If you feel like the roof is not clean enough, rinse it with clean water.Aug 8, 2017 · Step 1: Prep the area. Before you start, determine a project plan which includes your starting point, workflow, and containment. Be sure to remove furniture, move cars, and cover pools and hot tubs. As an extra precaution, wet down any vegetation that might receive overspray. Prep the roof by sweeping loose debris..