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Roof Life of Oregon

Discussion in 'Off Topic' started by aga7040, Oct 23, 2014.

  1. aga7040

    aga7040 Aloha Bronze Supporter Bronze Supporter

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    Just got a roof inspection. They said all I need is some moss removal. The offer a 3 year No leak guarantee using this Dennco Product. Total cost is $700.00 for a 1400 sq ft roof. Seem reasonable? Any professional advice welcomed.
  2. The Heretic

    The Heretic Oregon Well-Known Member

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    It depends on your roof and how much moss you have, but you can go to Home Depot and buy some zinc powder and spread it on your roof. After a few months this will kill the moss and the moss may just roll off the roof when it rains hard, if it is steep enough.
    decklin and mjbskwim like this.
  3. The Heretic

    The Heretic Oregon Well-Known Member

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    Do not pressure wash an asphalt shingle roof.
  4. erudne

    erudne The Pie Matrix PPL Say Sleeping W/Your Rifle Is A bad Thing? Bronze Supporter

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    ERRR This is spam
    they were even too lazy to put it in the proper forum
    bnsaibum and U201491 like this.
  5. willseeker

    willseeker N. Portland. Well-Known Member

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  6. tac

    tac UK, Oregon and Ontario. Silver Supporter Silver Supporter

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    'Moss, the State flower of Oregon', according to mrs tac, who loathes the stuff. 'All those poor trees', she moans, looking at the masses of moss coating most surfaces that don't move.

    When you live in a sub-tropical rainforest-designated state, moss comes as part of the deal.

    Unless, of course, you live in the High Desert...

  7. The Heretic

    The Heretic Oregon Well-Known Member

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    Yeah, try living on the north side of a mountain where you get 50% more rain than the valley does. Moss and mold on everything including creosoted railroad ties.

    Ketchikan was even worse - it was like walking on jello. Very rocky, but moss/etc. growing everywhere and beneath that either water soaked ground or rocks. I liked the time I spent there though - nice and quiet.
  8. ZA_Survivalist

    ZA_Survivalist Oregon AK's all day.

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    If they are removing the moss by hand, yes $250-$700 can be reasonable.

    Pressure washing damages a composition roof over time. Removing even zinc exposed dead moss by hand is the best way.

    Even dead moss can still pop shingles so it's best to remove then apply any type of moss out.
  9. jbett98

    jbett98 NW Oregon Bronze Supporter Bronze Supporter

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    I buy a 50# bag of zinc sulphate monohydrate (fine powder, not granules) from a place called "Concentrates Inc" near Bobs Red Mill store off of Hwy 224 and it will last a homeowner many many years. Cost is around $55.00 a bag.
    Home Depot sells Mossout which is the same product in a little 1lb can for around $8.99.
    Just sprinkle a little bit along the ridge and within 30 days, every scrap of moss will turn black.
    One caution, you should wear a dust mask when handling this.
    Last edited: Oct 24, 2014
    skydiver and Will_Power like this.
  10. Martini_Up

    Martini_Up NW USA Well-Known Member

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    "Ooooooooooooooooh one two five"

    There are better options out there. They quoted me a $1,000 and I had just a hint of moss.

    I now use the 'moss out' powder every fall and have no signs anymore.
    Sgt Nambu likes this.
  11. TOVO

    TOVO SW WA. Active Member

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    Anyone found bulk zinc sulphate monohydrate in the PDX area?
  12. Gunner3456

    Gunner3456 Salem Well-Known Member

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    Home Depot also carries a spray called Spray and Forget. It has worked wonders for me. Even the black junk on a driveway is some kind of moss.

    You spray it on and wait. It has a residual effect of at least a year. The moss dies, degrades, becomes a powder that rain will wash completely clean.

    I get the ready-to-spray bottles for the roof. A garden hose is attached and it will spray about 20 feet. For the rest I buy the 1 gallon concentrate and mix that with 5 gallons of water and use my backpack or hand held garden sprayer.

    I know zinc works, but this saturates it all at once and it is history. I might use zinc as a preventative.

    Zinc won't work like this does on walks, driveways, etc.
  13. Skang

    Skang WA Well-Known Member

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    and nobody mentioned why this is in "General Firearm Discussion' :D

    well how bad is the moss? I cleaned mine with brush last year (not recommended). haha
  14. U201491

    U201491 Well-Known Member

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    ROFLMAO Yes they sure did. A Roofing Ad in the middle of a gun thread basically.??????????????/
  15. teflon97239

    teflon97239 Portland, OR Well-Known Member

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    This is the Off Topic section, right? Was the thread moved here from somewhere else where it didn't belong? I didn' really see it as a glowing endorsement for anyone and it seems there are cheaper solutions.

    I've used a number of powder and crystaline zinc based products on my roof and they all kill moss. It turns brown and crispy, and just stays right where it was. It still has to be removed.

    I heard about Spray & Forget on the radio last week. I'm going to try it and see if it degrades moss enough to break down and wash away in the monsoons (assuming I still have shingles after yesterday's blow).