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Urbana Roofers: Article About Ice and Water Shield Installation

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Homeowners are normally familiar with basic roofing materials, including flashing and shingles. However, there's a complex layering system below the shingles to create a watertight seal. When Urbana roofers are called to estimate a new installation, they'll often suggest ice and water shields as an additional layer to complement felt, shingles and flashing. Homeowners should understand when these shields are necessary and their installation process.

When a new roof installation is necessary, that is the time to add a shield. This layer attaches directly to the roof deck or plywood layer. Contractors remove all materials from the roof to expose this decking. They'll carefully inspect the wood for any decay. This layer must be problem free before any shields can be added. Roofers will replace plywood sections if any decay is found.

Contractors use large shield rolls to lay out this moisture barrier. As the roll covers the deck surface, roofers verify that no bubbles or exposed areas are present. Generally, roofers use their hands to press shields against the deck. Alternatively, they can use a roller tool to carefully conform the shield to the roof surface. This shield must overlap with other roll courses to create a leak free surface. Butting courses against one another, in contrast, forms seams that can allow moisture under the layer.

Roofing experts of Roofs By Rodger of Urbana IL can assist you with any questions regarding windows or siding.

Although shields are highly effective materials, contractors normally add standard roofing felt afterward. This material usually has bitumen as a main component, creating another water resistant layer. Felt underlayment is usually the only water resistant layer below the shingles, so adding it to the shield below only makes the roof even more impenetrable to moisture damage.

Shingles are the top layer to shields and felt, providing the aesthetically pleasing surface for curb appeal. Roofers use basic installation nails to fasten shingles to the surface. These nails quickly drive through all roofing layers to secure into the deck. The roof should have a flat appearance with all shingles installed correctly. Any wavy roof appearances mean the roofing felt or shield has moved out of place. Contractors must fix this issue to avoid any future moisture problems.

Although ice and water shields have a self adhering layer to their construction, there is no cure time. Contractors add shields and immediately move on to the next installation step. Homeowners should view this additional layer as a clever way to protect the home from wind driven rain while adding significant value to the property.

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