A roofing inspector can report about: possible movement; condition of the materials used in the roof; drip edges, caps, and ridges; soundness of gutters, downspouts, and drains; as well as flashing around vents, mountings of HVAC units, valleys, chimneys, and roof pipes.
If the inspector does not see the need for repairs, the roofing company will present an estimation on the life expectancy of the roof and will give a certification, which is good for at least two up to five years. On the other hand, if the roof does need to be fixed, the roofing company will only issue a certification after the repairs are completed.
There are factors that roof inspectors consider, including the following:
1. Roof Type – The roofing materials commonly used are: wood shake, composition shingle, slate, concrete or clay tile, tar and gravel, metal or steel, and synthetic.
2. Roof Age – Roofs last depending on the material used. For instance, wood shakes normally need repairs if they have passed ten years; tile roofs can last for over 50 years, given that no one has walked on them, as weight can make them crack; shingle roofs are guaranteed for at least 20 up to 40 years, depending on their quality.
3. Roof Pitch or Steepness – Many roofing companies charge an extra cost for roofs that has a tremendous pitch. It can be calculated by measuring one straight foot of the roof, next to an even horizontal line. After that, measure the height of the roof at that point (the roof’s rise) beside a vertical line. If the roof ascends four inches per foot, then its pitch is four. The steepest you normally can find is 12.
4. Number of Layers – Some areas have regulations about the number of layers permitted on roofs before a total tear-off is needed.
5. Previous Repairs – Even though seller disclosure is not required in each state, many roofing contractors do not honor a roof certification if the seller doesn’t reveal past repairs done on the roof. Inspectors want to check previous repairs to be sure if everything’s done properly and that they wouldn’t cause problems in the future.
Roof certifications can be acquired either by you or the seller. Just make sure that the roof is properly inspected before buying a house among the available Arlington homes for sale.