Top Common Roofing Questions Answered

Picture of Laurence Rissler

Laurence Rissler

Laurence Rissler has spent his entire career in the building, roofing and contracting industry. He is owner of Rissler All-Weather Roofing & Repairs. When not high on a roof, he enjoys serving God, being a husband, and is the father of 5 children.

There are several things to consider when determining whether, or not, to have your new metal roof installed over battens. By design, some metal roofs MUST be installed over battens, some MUST NEVER be installed over battens, and some can be installed over battens OR solid decking. So, whichever way you go, it’s important to choose the right product and install it per manufacturer specifications.

Next, I highly advise the use of a layer of underlayment over the old shingles or decking, whether or not battens are used. I interpret the International Building Code as requiring it and it’s just good practice. I normally suggest a layer of one of the higher quality synthetic underlayments, and an ice and water shield if required by code.

Now, your existing shingles are pretty curled. You could install a textured metal roof such as a metal shingle, shake, or tile over these curled shingles (with underlayment). You also could install a corrugated through‐fastened product and probably not have issues. However, a true standing seam, especially one without any sort of striations or stiffening beads in the center of the panels, will probably show oil canning as the result of going over shingles like yours.

As to the potential benefit of battens: they do create a thermal break to help minimize heat transfer from the metal to the roof deck. That is a good thing. However, if you choose a metal roof that is either light in color, or has reflective pigment in the paint, that will be very helpful as well. Your attic ventilation and insulation will also help with summer energy efficiency.

One effective way to use battens is to cross batten. This involves putting down vertical battens first, and attaching them through the roof deck to the rafters. And then you put down horizontal battens for the roof panel attachment. The resulting vertically oriented chambers can then be ventilated by bringing fresh air in at the boom and exhausting it out at the top. This has very positive results as far as keeping heat out of the attic. It can also help avoid rooftop ice dams in the winter. However, cross battening significantly raises the roof level. This means gutters will have to be re‐hung. It also could cause the roof to interfere with skylights, clerestory windows, dormers, and even chimneys and plumbing stacks. And, again, if you have good attic ventilation and insulation, that is very helpful and can be more than adequate in many cases. My own roof is direct to the deck, for example.

I also need to point out that metal shingles, shakes, and tiles usually have an integral airspace between the metal and the roof deck. That creates a thermal break which is very similar to a vertically seamed metal roof installed on horizontal battens. The dead airspace in the hollow beneath these panels acts like the dead airspace between two panels of glass in a thermal pane window.

Finally, if a structure has very limited insulation and ventilation (especially ventilation) in the attic, battens can be very helpful. Again, this is from a thermal break / thermal bridging standpoint. A home with limited attic ventilation is at HIGH risk that moisture originating inside the living space can migrate to the attic and cause condensation there. If that moisture hits a cool surface, it will condense. Condensation will lead to mold, etc. This is not good. While your home may have been fine with asphalt shingles and no ventilation, the addition of a metal roof will reduce the roof deck temperature even just a slight bit. That can be enough to be the straw that breaks the camel’s back and cause condensation in the attic that did not exist before.

Additionally, I want to point out … if you do things to your home like tighter windows, house wrap, and siding … those things reduce the ability for moisture inside the home to exit through the walls. This can cause higher moisture levels in the attic. So, if you plan those improvements now, do not do something to the roof that could make it more prone to condensation when those other things are done.

Budget Friendly, Low Payment Financing Now Available!

Whether your new roof is the result of a planned project or because of unexpected circumstances, it can represent a significant, but necessary, home investment. A roof helps to keep your home and family protected from the elements. Rissler All-Weather Roofing is happy to offer financing options for our customers.

Why Roof Financing Can Be a Good Idea
It’s easy to forget about your roof, and homeowners often put off repairing or replacing an aging roof until serious warning signs appear. Other times, Mother Nature may wreak havoc with your shingles or send a wayward tree branch that causes damage.

If you’ve built up a fund for roof maintenance and repair, that’s great, but many times we’re left unprepared when roof needs come calling. Even if the damage is covered by your insurance, you may be left with a hefty deductible that’s not in your budget. Or, you may decide it’s time to replace the entire roof with new and improved materials rather than do a repair.

Enjoy Low Monthly Payments
When you finance a new roof, you can benefit from low monthly payments. This lets you pay for your roof in installment amounts you can afford and prevents you from having to pay for a multi-thousand-dollar roof project in one lump sum.

Depending on your payment terms and credit history, you may also be able to benefit from low-interest rates during the life of the loan.

Quick Approval Process
Applying for roof financing can be an easy, seamless process thanks to modern technology. You can apply for roof financing right now and completely eliminate paperwork. You will need to provide some basic information to get started. Once you submit your information, we will contact you with more information. Final approval notices usually arrive within minutes.

More Questions and Answers


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