Frequently Asked Questions
Re-roofing is a process you may not be familiar with until it becomes time to replace the
roof on your own home.  And even then, there's a lot to learn about which products to use
and what procedures best meet your individual roofing needs.  Therefore, it's vital to know
that you can rely on the roofing contractor you choose to give you good advice about those
products and procedures that may be new to you.  The key is to find the right roofing
contractors for your job.

Here are a few of the most frequently asked questions, if you have others feel free to
contact us at (810) 423-1100.

When is it time for a new roof?
Some signs that your roof is due for replacement are curling of shingles, surface cracking,
blisters, staining, and leaking.




What products are to be used?
We will offer the homeowner a choice of good, better, and best shingle products using
appropriate manufacturer's literature.  Specific, not generic, product brand names and color
names should be noted in the agreement.




When will the work start and be completed?
Work start and completion dates are estimates.  The project duration should be firm (plus or
minus a day or so), subject to the scope or nature of the project changing from the original
agreement.  The element of bad weather must be taken into account in holding grim to start
to completion dates.

What does inadequate ventilation cause?
Inadequate ventilation is a major cause of warranty disputes.  It is vital that every
homeowner understands that all manufacturers require that FHA minimum property
standards for ventilation be observed.  This is because poor ventilation has been proven to
increase attic temperature substantially in the summer months, promotive ice dam
information at the eaves of the roof in the winter in the presence of snow, and increase the
chance of condensation that can cause deck movement or deterioration.  These conditions
can cause premature shingle aging and perhaps leaks.  Older homes are seldom ventilated
to the FHA standards.  Manufacturers will reject claims for problems that can be traced to
inadequate ventilation.






Is It always necessary to tear off existing shingles before re-roofing?
There are two options available for re-roofing installations.  One would be to tear off the old
roof before applying the new one (tear off).  The second would be to lay new shingles over
the existing roof (lay over).  While the second choice is the less expensive of the two
options, it is not necessarily always the best choice.

There are advantages to tearing off the old roof before installing a new one.  For example:

  •        If there are any defects in the roof deck, they will be revealed when the roof is torn
    off.  These defects should be repaired before applying the new roof.
  •        If condensation problems exist in the attic, they too will be revealed when the roof
    is torn off.  Properly designed attic ventilation can be installed in order to help
    eliminate such problems.
  •        When the old roof is torn off, waterproofing shingle underlayment can be installed
    before applying the new roof.  This will help protect against cyclical ice damage.
  •        Tearing off the old roof and starting with a clean deck before re-roofing may
    result in a smoother finished roof system.
Guns & Hoses Roofing
 3645 Karen Parkway Suite 102
  Waterford, MI. 48328
(810) 423-1100 Toll free (877) 999-9931 (248) 681-3789
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