651-212-4221
Feb 18, 2013
|

Can I Install a New Roof Over My Old One?

Installing a new roof is a sizable investment and most homeowners want to ensure that they’re being wise with their money.  As a cost-saving measure, some may look to eliminate the cost of the tear-off of the old roof by simply roofing the new roof over the old one.  It may seem like a good idea to put new shingles over the old ones, thinking that it may offer additional protection.  We believe this mentality to be a penny-wise and dollar foolish for the following reasons:

Legality

Most homes in the Midwest are classified as “moderate hail zones”.  When a home receives this classification, it is illegal to install a new asphalt roof over an existing one.  Check your local ordinances to see whether this is even a possibility before moving forward with the project.

Roof Deck Inspection

A roof deck is an underlayment that shingles are laid on top of.  By adding shingles on top of the old roof, there is no opportunity to inspect the roof deck to ensure that the current wood is not wearing out.  Worn out portions of the roof deck can cause leaking.  Stripping the roof down to the roof deck, also give the nails being used in the new roof a better chance to hold.Torn-off roof

Weight

Asphalt shingles are heavy and adding a second layer of them to your roof may compromise your home’s walls and roof structure.  Even if your area does permit shingles to be placed on your roof in multiple layers, eventually you will incur the cost of removing them because your roof can only support so much weight before its integrity is compromised.

roofing

Sealing Issues

It’s improbable that your current shingles will line up with the existing ones.  This will prevent the current shingles from sealing properly and as a result, they may come off during high winds easier than they normally would.

Manufacturer Warranty

Roofing manufacturers have warranties in place to protect consumers from the cost of replacing a roof should their product malfunction.  Manufacturer warranties oftentimes will not cover new shingles being layered on top of old ones.  The reasoning being that it is unlikely that the new shingles will be able to lay flat.  If the shingles are not laid on a flat surface, they won’t conform to each other the way they are supposed to.  Winds that the shingles should be able to stand up to may cause them to loosen.  This leaves the homeowner with repair bills or the cost of replacing the roof sooner than they should have had to.

 

Reviews

We Strive for 100% Customer Satisfaction

Delivering exceptional service is our No. 1 priority. Read these happy reviews from homeowners who were blown away by their home improvement experience with Lindus Construction.

"I highly recommend Lindus Construction. I have used them for three projects over the last few years and they are easy to contact, the people are friendly and they do very high quality work. Don’t hesitate to use Lindus for your next project."

Darrell M.
Lino Lakes, MN
June 9, 2022

"Kept me in touch through out the whole process. Very happy with their work."

Shelly P.
Minnetonka, MN
November 11, 2021

"Best product. Great people. They really know their business. You won't be disappointed! Thank you!"

Howard F.
Brooklyn Center
October 22, 2021

"Lindus was very professional. Lindus arrived on time and finished in a timely manner. Overall it was a job well done."

Christopher O.
North St. Paul, MN
October 22, 2021

"Love the product! Everyone at Lindus was a pleasure to work with!"

Lynnae Z.
Circle Pines, MN
October 21, 2021

"Great company!!!!"

Jerry T.
Shoreview, MN
October 21, 2021

"Work was great. Crew did great work, fast, clean up was very good. Could not believe how fast that they did the job. When beyond what I expected. Very good work, great crew. Thank you."

Charles G.
Roberts, WI
October 14, 2021

"Quality product and workmanship, on time, well-informed office staff.  Crew is experienced, and respectful of the property."

Carol K.
Bloomington, MN
April 2, 2021

"Tried and true, that’s Lindus Construction. They have helped on three projects now and they always say what they will do, when they can do it and the accurate cost - no surprises! I appreciate the communication throughout each job as well. I have a happy home thanks to them."

Claire C.
Shorewood, MN
March 12, 2021

"We would like to thank you for helping us get this project done. All of the work has been done and we are very satisfied with the results.  The Lindus crews were great to work with and kept us informed throughout the process."

Claude & Brenda S.
Oakdale, MN
February 3, 2021

"Both Randy and Noah could not have done a nicer job.  They were both two real professional guys that did really nice work.  Everything looks just beautiful."

Rob R.
Plymouth, MN
December 28, 2020

"We are very happy with how everything looks and functions. We feel our entire experience with Lindus has been great. Probably the best experience we've had with any contractor that has done work for us, inside or outside."

Dawn L.
Inver Grove Heights, MN
December 12, 2020
75% Off Installation Labor on LeafGuard® Brand Gutters & Infinity® From Marvin Windows. We Are Also Offering A Complimentary Heat Map Analysis With Insulation Estimates Through October 31st.
Some restrictions may apply. Call for details.
icon
Call
icon
Services
icon
Appointments
Menu
Gutters
Roofing
Windows
Siding
Custom Decking
Insulation
Storm Damage Repair
Construction