Ways to find Leaks in your Roof and Window


Leaks that occur in your roof and window will definitely allow rainwater to enter your home thus causing damage to your interior walls and also expensive furniture. In addition, the leaks from your window will also allows air to get out of your house resulting to more heating within the house and also increasing the cooling expenses. You must immediately repair any leaks once you managed to find its exact location because water leaks can travel from its starting point of its entry and away to other parts in your house. You will definitely know that your roof is leaking whenever one of your shingles are missing or damaged and also when the leaking water managed to stains your ceiling or walls. You must rectify the leaking problems before your entire roofs starts to get damaged.

To find leaks in roof and window, you need:

  • Ladder
  • Flashlight
  • Garden hose
  • Tri polymer Sealant
  • Screwdriver
  • Paint stir stick
  • Cellular phones or walkie talkies for easy communication when checking the roof
  • Chalk
  • Masking tape

Find Leaks in your Roof and Window

How to Look for Leaks in your Roof and Window

  • First thing that you need to do is to find the source of leaks on your roof.
    • Make sure that you are assisted by a helper so that he can wait on the attic and check the area of your interior roof for any water leaks by using a flashlight.
  • The next step for you to do is to set up a suitable ladder in order to climb up the roof. Stand on the roof at least halfway between the eaves and the peak.
    • Then, turn on the water and direct your garden hose (that has a shutoff on its end) right at the shingles from the top moving to the lowest point of the roof. You need to wet your roof a few square feet gradually and do it towards the peak of the roof.
  • Then, you need to mark the roof by using chalk whenever your helper informed you of any leaking area.
    • You should always communicate through your cellular phone or use a walkie talkie in order to make your task easier enabling you to know immediately when there are any leaking areas. This is important before you proceed to check on other section of your roof.


For safety, always allow the shingles to dry thoroughly before you start to climb down from the roof. Wet shingles are very dangerous because it is slippery and can cause you to fall down if you are not careful.

  • As for locating leaks in your window, you can simply make use a stick or cone of incense.
    • Firstly, you have to light the stick or incense cone using a match.
    • After that, you need to blow out the flame that you created in order to produce an incense smoke.
  • Next, you have to hold the incense right in front of your window and make sure to watch the smoke movement.
    • The area to concentrate is where the frame and the window come together, where the different window sections meet and where the window frame meets the wall. You must hold the incense at all of the above mentioned areas in order to locate leaks for your window.
  • Once finished, you should mark any of the areas where you find air seeping in through any leaks and are able to blow your incense smoke from the window.
    • The leaking are of your window must be marked by using chalk or masking tape.
  • Finally, you need to monitor the resolved issue for a day or two before you can start to further testing by wetting down the roof so that you could verify the leaking problem has been resolved.

    Always remember that whenever you want to find leaks in roof and window of your house,

    • Whenever you are using the garden hose on top of the roof, make sure that you do not run the hose using full strength of the water because you do not want to create a new leak as a result of the high water pressure.
    • We recommend that you use the Geocel Roof Sealant that you can purchase from your local roof supply warehouse or hardware stores. Be extra careful when you are applying the Geocel Roof Sealant because it is extremely sticky. You can easily get it onto all over your hands but do not worry. This sticky material can come-off easily by using naphtha or mineral spirits.

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