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How To Install Roof Flashing

July 28, 2011 by Roofer911 - 1 Comments

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The most important part of learning how to install roof flashing is learning to think like water. Water follows gravity and its adhesive and cohesive properties also means it can be sucked up against gravity into tiny cracks by capillary action.


Flashing is an intermediate material, metal, rubber, or plastic, installed between the roofing materials and house parts like walls, skylights, and vents. Metal flashing (drip edge) is nailed on the bottom edge of the roof, with a bead of tar under it, starting at the corner farthest from prevailing winds. Where ice and water shield is used, flashing goes on top. Each following piece of flashing overlaps on top going to the other edge. Then lay underlayment. Extending up the roof rake edge, the first piece of drip edge sits on top of the horizontal drip edge, and the underlayment. The next piece overlaps on top, going up to the ridge. Underlayment and roofing goes next.


Where roofs meet walls, 'L' shaped baby tin step flashing starts at the lowest edge, overlapping to the ridge. This flashing goes under the wall siding, on top of underlayment. Ice and water shield could be under all of these.
All other flashings go under upslope roofing materials and on top of the rest of the surfaces. For more clarity, check out videos online. Better yet, hire a reputable roofer now you know why they are worth their price! When you think like water, it helps you understand how to install roof flashing.





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Comments

1 Responses to "How To Install Roof Flashing"

League City Roofing Contractors says:
May 26, 2012 at 6:19 AM


Very good points. If roof flashing is not installed properly it can lead to costly repair bills by having a leaky roof.


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Blog Categories
Submit Your Blog

Attic

Black Mold

Cedar

Clay Tiles

Commercial Roofing

Flashing

Green Roof

Gutters

Ice Dam

Infrared

Insulation

Insurance

Metal Roofing

OSHA

Roof Cleaning

Roof Inspection

Roof Repair

Roof Replacement

Roof Ventilation

Roofers

Roofing Companies

Roofing Supplies

Siding

Skylights

Slate

Solar

Steel

Tile



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