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At ROTban we are knowledgeable in the many roof maintenance issues that can arise, and we are eager to share our knowledge and experience with you with these articles.

Some of the themes you will encounter are:


What Is Roof Efflorescence?

January 10, 2023 by ROTban Services Corp. rotbanjun2020

Roof efflorescence is an interesting phenomenon where a concrete roof may look like it has tiny white dots or patches of white on it. Some people think it’s bird droppings. What is efflorescence? Efflorescence is when calcium hydroxide, a compound found in concrete products, reacts with carbon dioxide in the atmosphere to create calcium carbonate […]

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Building Enclosures – Roof Tools and Safety Wear and Tear

May 28, 2022 by ROTban Services Corp. Building Enclosures – Roof Tools and Safety Wear and Tear

Roof damage has been a hidden and costly result of various trades using uneducated, careless, and sometimes downright unscrupulous methods of work.   After the problem of roofers taking short cuts, and doing improper installations, physical roof moss removal is the next big culprit. We deal with sloped roofing here because there are fewer issues with […]

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Building Enclosures – Siding Cleaning Errors

March 16, 2022 by ROTban Services Corp. Building Enclosures – Siding Cleaning Errors

Siding cleaning must be done with a gentle process to avoid creating rot on the inside of the exterior walls. Typically, in Greater Vancouver, homes are clad with self sealed systems consisting of siding and an underlayment.  Any injection of water beyond these two protection products is trapped within the wall, causing rot. The rot […]

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The biggest roof cleaning goof-up I’ve ever seen.

April 22, 2021 by ROTban Services Corp. let me share a story about The biggest roof cleaning goof-up I’ve ever seen.

In about 2008, a customer from a lovely traffic-calmed neighbourhood in Cloverdale called me. He asked me to look at his next-door neighbour’s roof.  “I think you need to come right away”, he said, “I really mean it!”  We had restored and treated this customer’s cedar roof, and what he had seen happening next door […]

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Property Managers, Stratas and Councils

April 7, 2021 by ROTban Services Corp. Property Mgr Council

Townhomes, Condos, and row houses are important real estate holdings in the Greater Vancouver area. They have Councils to manage on behalf of the owners, and most have a Property Manager to ensure legal compliance and to assist in the management. Are you a Property Manager looking for exterior cleaning services? You can skip the […]

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Roof Stain Removal: The Finishing Touch

October 30, 2020 by ROTban Services Corp. Webp.net resizeimage

Lots of us spend an enormous amount of time and energy and money keeping our homes looking their best. We clean them, fix things that need repair, landscape our yards, cut the grass, and make constant improvements. We pay close attention to the exteriors of our homes, including the siding, gutters, and the windows, but […]

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The Importance of Clean

August 31, 2020 by ROTban Services Corp. rotbanv2aug2020 1

It happens that ROTban™ is in the business of cleaning moss, algae, and stains from roofs, building exteriors, and landscape structures, but we think the concept of clean is important in all kinds of ways. Clean rooms and offices make you feel less stressed. They make you more efficient and happier. Cleaner surroundings are also […]

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Be Careful With That Roof!

May 8, 2020 by ROTban Services Corp. De Granulation Asphalt 1

Nature damages roofs, and so do people! Please read on and save yourself roof trouble. Conversely, your roof can damage you, too! If it doesn’t work, it can rack up huge costs in interior repairs and replacements. Also, if you or anyone falls off your roof, it can be an incredible pain–physically and financially. There […]

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How Does “Soft Washing” for Exterior Cleaning Work?

March 31, 2020 by ROTban Services Corp. Shipping End Eagle Ridge wide 1

Dirt, grime, mildew and mold can show up and build up on any surface. In some cases, a quick wash with a hose may be enough to clean it off. However, often a more thorough cleaning is required. While most people may still be tempted to reach for the pressure washer, this might not always […]

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How To Keep A Cedar Roof In Good Condition

August 24, 2017 by ROTban Services Corp. 2017 08 24 1507

My cedar roof is 4-1/2 years old. It is made of 7/8″ gold standard tapersawn. Do I require any kind of roof maintenance work? There is no visible moss growth on it, but I do hear birds pecking on the roof from time to time, as if they are trying to get at something to […]

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