What is the Right Roofing Material- TPO EPDM Metal?

This is certainly a hard question to answer as each house is unique and everyone’s needs vary.  However, for most houses in DC there is a most common answer.  However, before we dive right in we need to take a step back to talk about why.

When was the last time you bought some new technology?  Whether it was a TV or a new iPhone you probably looked at reviews, factored in the price, determined its value for you and made a decision.   A new roof is an identical buying decision – with a bit of extra urgency thrown in if your existing roof is leaking.  For every technology there exists a sweet spot.  It usually lies where several things overlap.

  • Price.
  • Value.
  • Reliability.
  • Efficiency.

For most row houses in DC those metrics will point to one correct roof technology.  TPO.  It has a long life, is economical to install, is well supported, and it is efficient and because of that it is the choice of many LEED Certified buildings.

If price is a bigger factor and value/reliability/efficiency are smaller factors then EPDM roofs are often the homeowners choice.  The downside is they need maintenance every 6-9 years by way of a new coating.  Otherwise, the rubber can dry out, crack and fail.

If the homeowner wants a warranty longer than the 20 years available with EPDM, or 25 years available with TPO, a standing seam metal roof is a great option. However, it is a more expensive option and isn’t right for all situations.




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