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Twin City Roofing
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Things to Know About Roofing, siding, soffit & fascia,

window & gutter Replacements, Upgrades & Repairs



Why are my shingles not laying down flat after getting a new roof? They look wavy. 


  • This is common to almost every roofing job. The shingles are wrapped very tightly in the packaging, stacked on pallets and tend to mold to the shape of the stack. Once they’ve endured a few hot days in the sun, they should flatten out. Winter installs may take longer to lay down as the sun is not as warm. If waviness occurs well after initial install it may be a sign that interior moisture levels are buckling the deck boards which in turn creates a waviness appearance of the shingles. 

Why after my new roof was put on do I see a lot of granules in the gutters?


  • Loose granules within the shingle packaging as well as from the process of installing the new roof are a common occurrence but if you wash those out of the gutters you should not have any more issues. If, over multiple cleanings, granules continue to fill up the gutters call your roofing contractor to inspect the roof. 

How can I prevent ice damming on my roof?


  • Good insulation and ventilation are the long-term solutions. If that’s not an option than we always say, if there is no snow, there is no ice… keep the roof clear of snow is your best defense. Plastic shovels and roof rakes are the tools of choice to get the snow off. 

Do salt pucks work on an ice dam?


  • They certainly won’t hurt (as long as it's made out of calcium carbonate) but probably won’t help to alleviate the leaking unless you use A LOT and very strategically place them on the dam 

Can broke/cracked glass of skylights be repaired?


  • Yes. In the case of a Velux skylight that is still under warranty, a technician will come out and replace the glass without needing to mess with the roof or replacing the unit. 

Can a damaged turbine vent be easily fixed?


  • In most cases Yes. Turbines are a 2-part system with the circular base being integrated into the roofing system and the spinning top part attaching to that with a series of clips. If your turbine isn’t too old, you could detach the spinning portion and replace it with a new one without even getting into the roofing. 

Can a leaking gutter be fixed without replacing it?


  • In most cases Yes. Commonly it will be leaking at either the end caps, the outlet to the downspout or and outside/inside corners. Most times a re-application of a professional grade gutter sealant will stop the leaking. 

Will I ever need to clean out gutters that have gutter guards on them?


  • Not necessarily, pine needles or Maple “helicopter” seeds, etc. have a tendency to infiltrate even the best guard. It’s recommended to have your gutters checked periodically for any potential weaknesses inherent to whichever guard you have... No system is 100% perfect!

Does my house need gutters?


  • It all depends. How big are your overhangs? Do you have positive drainage naturally/manmade flowing away from your foundation?  Is your foundation made of block or the old limestone/rock? The newer the foundation material the better likelihood water won’t infiltrate thus a less likelihood of needing gutters. If your basement regularly floods with water would be a reason TO get gutters to direct the water away from your foundation. 

How long should my asphalt shingle roof last? 


  • It all depends. A lot of variables can affect the LONGEVITY of your roof but on average your new asphalt architectural shingle roof should last you 25 years.

Will I need to “re-deck” my roof when putting a new roof on? 


  • If, when you look up into your attic, you see gaps between the deck boards greater than ¼”, you may need to have a re-deck (depending on the shingle manufacturers specifications). 

Can I “roof-over” an existing roof?


  • Yes, up to 2 layers are allowed by code given the existing layer is not soaked or deteriorated to a degree “unsuitable”.

Will insurance cover the cost for “re-decking” if I have big gaps in my decking?


  • In most cases, Yes, “code upgrades” are covered but you will need to check your policy provisions as everyone has different coverage options.


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