Guide to Install Metal Roof Over Shingles
                     Can I Install Metal Roof Over Shingles?
Most homeowners consider dumping their asphalt shingles with the intent to enjoy
the benefits of metal roofing. However, they probably don’t know installing a metal
roof over shingles is a viable and eco-friendly option, providing your roofing with an
extra protective layer while saving the cost of  removing the old roof.  You might
wonder, “is this a good idea to install a metal roof over existing shingles, and what
are the other considerations for doing so?” We have enlisted everything about this in
this article to help you make an informed decision about installing metal roofing over
shingles. Inspect your existing roof from the best roofing companies in Pasadena
to evaluate the roof’s prevailing situation since it may influence this task. 
Common Residential Roofing Materials: Asphalt And Metal!
Before we discuss whether you can put a metal roof over an asphalt roof, you need
to be acquainted with both. 
Asphalt Shingles:
3-tab, dimensional, and luxury are the three types of asphalt shingles. While 3-tab
shingles used to monopolize the roofing market, dimensional shingles are now the
most  often  installed  variety  on  roofs.  Luxury-style  shingles  are  just  as  highly
advertised as dimensional shingles, but they cost nearly twice as much.
Metal Roofing:
Metal roofs are of two types: standing seam and screw-down panel. A standing seam
metal  roof  system is  made up of  panels  series  joined together  at  the seams or
mechanically seamed, allowing the panels to expand and compress freely when the
metal heats up.  A screw-down panel is just exactly what it sounds like: it's screwed
down.  The  screws  are  screwed  through  the  metal  panel,  leaving  no  space  for
expansion or contraction. Due to its lack of extension capabilities, installing a screw-
down panel over a hot space such as your house or office isn't advisable. 
Also, engage an insured, certified, and experienced roof contractor in Downey to
undertake this type of roof replacement. 
Can You Install Metal Roof Over Shingles?
The  straightforward  answer  to  this  question  is  YES.  Installing  a  metal  roof  over
shingles can be feasible, although it depends on the existing roof’s condition. With
the intent to make this accomplishment, your current roof should be near its lifespan
and must be in its pristine condition (no sign of lifted or cracked shingles, blisters, or
bumps). Most roofs won't be excellent options due to the wear and tear they endure
during their lifetimes. Hence, it’s imperative to get your roof inspected annually by
professionals for any signs of roof replacement or roof repair in Long Beach.
The project may be hassle-free if the new metal roof is installed properly and your
local roofing contractor handles everything correctly. You may save up to 25% on
labor expenses by avoiding taking off your old shingle, installing new underlayment,
or paying disposal fees for the old roofing materials. 
Necessary Steps To Take Before Installing Metal Roof Over 
Shingles
You should follow these measures while trying to save money on the pre-installation
of your metal roofing over shingles. 
 Remove air vents, pipe flashings, or any other obstructions
 Repair broken, torn, or cracked shingles
 Clean the roof and eliminate any debris that may pose a problem
 Inspect  any  roof  leaks  or  cracks  that  may  cause  additional  harm  if  not
corrected before installing the roof
 Contact your local building codes to ensure this project can be accomplished
 While many regions permit re-roofing over one layer of shingles, others allow
re-roofing over two shingle layers
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