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Roof Remodeling Factors to Consider

Sep 15th 2015 at 6:54 AM

Irrespective you will be hiring a professional contractor like Green House remodeling to undertake the job of reroofing your home, you ought to try to become familiar with certain aspects that are involved in the work.

There could be a variety of conditions about your roof that can limit product choices and impact the cost of the job. Here, we’ve outlined some questions and answers which pertain to the process:

1. Is a permit necessary for a new roof installation on your home?

Permits are required by some local ordinances prior to the start of a roofing job for new and for reroofing work, depending on the locale. Should a permit be a requirement, discuss this with the contractor.

2. Is it necessary to remove existing shingles before reroofing? If so, who will dispose of the old shingles?

Two options apply. First, tear off the old shingles and replace them with new (tear off). Second, lay the new shingles on top of the existing (lay over). The latter choice is the least expensive, though it’s not always the ideal choice.

The advantages of tearing off the current roof include:

- Defects in the deck of the roof will be revealed when the current roof is removed and can be repaired prior to applying the new roof.

- If condensation is a problem in the attic it will be noticed when the roof is removed. Correctly designed attic ventilation can then be set up.

- A waterproof shingle underlay can be installed prior to laying the new roof which serves to protect against leaks.

- Beginning with a clean deck before the reroofing work begins can make for a finished roof that is smoother.

There are of course added costs involved here, but each in turn adds to the validity of the manufacturer’s shingle warranty. Should you opt for the roof to be torn off, the contractor ought to be responsible for cleanup and disposal. However, the contract must clearly state this.

3. How can it be determined the roof is appropriately ventilated?

Ventilation is required for most shingle warranties to be effective. A good ventilation system helps to:

- Reduce condensation and moisture in the attic

- Reduce heat buildup in the attic

- Prevent the occurrence of ice dam buildup

- Prevent any weather infiltration such as driving rain

4. What is the function of shingle underlayment?

Some UL standards and local building codes make it a requirement that underlayment for shingles (also termed as roofing felt) is installed. This prevents leaks which are caused by ice dams which frequently occurs in colder areas.



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