Installing A New Roof

Whatever materials and design you choose, proper installation will ensure that your new roof lasts. Finding experienced installers can be challenging with some of the unique roofing options. Look for applied experience, backed by both installers and manufacturers warranties. Most roofing manufacturers provide literature outlining step-by-step installation instructions. Ask your installer to show it to you and explain how he or she follows the directions.
A general outline of the roof installation steps is given below:

Take out the old roofing.
This step involves removing old pieces of the worn out roof. The old roof can be cleared to the sheath or destroyed if the trusses are not in good shape. The new roof is then laid properly according to manufacturers instruction and by the right professional.

Assessing the Roof
Once the old roof has been removed, evaluate the sheathing. Roof sheathing is made up of flat panels that provide structural support and a base on which roofing materials, like shingles, are attached. Look for trouble spots that will have to be replaced such as areas with algae growth and water accumulation.

Protecting Against water and Ice
If you live in an area thats prone to ice accumulation for even part of the year, there is a need to install an ice and water barrier around your roof. This barrier goes on around the edges of the roof, but mainly at the very bottom edge that is most susceptible to the buildup of ice. This sticky underlayment glues to the roof sheathing and is then nailed down for added strength and firmness. Sheathing must be structurally adequate to support the loads involved and of a material recognized in a code evaluation report or as approved by the local building official.

Underlayment
Acting as the second line of defense against moisture damage, roofing underlayment prevents any water that gets past the roofing and flashing from compromising the sheathing and causing leaks. For additional protection, membranes are often used beneath the underlayment in areas prone to leaks, such as valleys, and help seal holes created by roofing nails. The underlayment choice depends on your roofs pitch and other factors, but the standard is roofing felt.
Another important barrier to leaky roofs is flashing. Placed in valleys and wherever chimneys, ventilation or skylights penetrate the roof, these bent metal pieces form a watertight barrier spanning unlike materials or other vulnerable areas.
Drip edges are installed along the roofs perimeter to keep water from tracking under the eaves where it can damage the roof and siding. All roofing systems should include some drip edge component.

Getting the Roofing on
The technique that you use to install the roofing of your home depends on the type of roofing you choose. Whether it is shingle roofing, tiles, slates or metal roofing all require different approaches in installation.

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