Category Archives: Materials

The Ultimate Guide to Getting a New Roof in 2017-2018 – Roofing Buying Guide

A new roof is a costly investment with practical and aesthetic implications – the roof is your home’s most important protection against rain and snow, and it can significantly impact the appeal of your home in the eyes of potential buyers.

GAF Timberline HD Shingles Roof

This guide will help you make an informed decision when it comes to reroofing (adding a new layer of roofing to the existing roof) or removing and replacing the old roof.

Seven Signs You Need a New Roof

Here are the indicators that your roof should be re-shingled or replaced to maintain your home’s defense against the elements:

  • Shingles are visibly worn: Are so many of the colored granules gone that your roof looks like it has bald spots? While the shingles might still be keeping moisture out, a lack of reflective granules allows excess heat into your home, raising the temperature inside your house and increasing your air conditioning costs.  Furthermore, once exposed, the underlying asphalt will soon dry out and crack, and then your roof will be susceptible to rain.
  • Shingles are cupped and curled:

    Curled-up old shingles

    This issue looks bad, but more importantly, it means wind-driven moisture can easily get under the shingles and into your roof deck where it might cause leaks and rot.

  • Shingles are cracked: The cracked areas aren’t keeping moisture off the deck, and the risk of leaks goes way up.

    Cracks or thermal splitting in asphalt shingles

    via Structure Tech

  • Your neighbors are getting new roofs: This is more than “keeping up with the Joneses.” When homes built about the same time as yours are being re-roofed, your roof is probably about due.
  • You’ve experienced multiple leaks: Your roof is an entire structure, not just the shingles. Deck paper, flashing, moisture barrier in valleys, starter shingles, vent stack boots and other components are part of an entire roofing system. As the roof ages and several of its components or locations fail, the roof should be replaced.
  • The roof has experienced major damage:

    hail damaged shingles

    via TJR Construction

    If more than about 35% of your roof is going to need repair due to wind or hail, especially if it’s already 12+ years old, the cost-effective decision might be to replace it all. Repair is costlier per square foot because it is more time-consuming to integrate new shingles into a roof “here and there” than to install them over the entire roof. Plus, a mix of old shingles and new just won’t look very good.

  • Your roof looks bad: Cosmetics do matter to homeowners and potential buyers. If your roof is worn, has algae staining that won’t clean up or has patches of moss on it, boosting its appearance with a new layer of shingles will make a very nice difference.

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If none of these reasons to get a new roof apply, then you’re probably done here! If you’re not sure about your roof’s condition, hiring a home inspector or roofing contractor to inspect it can be a preventative measure before a roof failure and the extensive and expensive damage it can cause.

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GAF vs. CertainTeed Roofing Shingles: Cost, ROI – Definitive Guide for Homeowners

GAF and CertainTeed combine for a huge piece of the roofing shingle market. This comparison hits all the important factors in deciding – Quality, cost, styles, pros and cons of each option, warranties and more. Our guide also addresses the return on investment and explains when either GAF or CertainTeed shingles are a better choice for a homeowner.

Let’s put the comparison into perspective right from the start:

CertainTeed, by every measure, is the premier manufacturer of exterior building materials and a winner of the Professional Remodelers Best in Class award.

CertainTeed Landmark series Shingles Roof in Weathered Wood

While most of its lines are upmarket, CertainTeed has begun making less expensive lines like the Landmark Series to compete with value-priced asphalt shingle brands.

GAF, the largest manufacturer of residential roofing materials, makes mostly good-quality shingles with a few lines like Camelot that are exceptional.

GAF Premium Asphalt Shingles: Camelot Williamsburg Slate

CertainTeed didn’t appear worried about cost a decade ago, and it still dominates the “best” category of roofing shingles, though competition is growing.

Most GAF shingles are cost-conscious products that compete with Owens-Corning, IKO, Tamko, Malarkey and similar brands for “basic and better” ranges — niches it ranks first in.

  • CertainTeed: Mainly high-end, high-cost products with some affordable lines.
  • GAF: Mainly affordable shingle lines with some high-end products.

Here are some important qualitative and quantitative details to consider within the larger scope of CertainTeed vs. GAF shingles debate:

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Galvalume vs. Galvanized Steel Roofing – What’s the Difference?

If you are one of the many homeowners looking to install a steel roof on your home, understanding the difference between galvanized steel vs. Galvalume is essential to getting the top performance you expect from your new metal roof.

Right off the bat:

In most residential steel roofing applications including near-coastal areas — beach homes located near the shore, and even homes located in the middle of heavy salt-spray — severe marine environments, Galvalume steel will be a better and more corrosion-resistant option than galvanized steel.

The one exception when Galvalume should not be used:

Galvalume steel should not be used on, in, or around concrete or mortar. Concrete and mortar are highly alkaline environments. Bare Galvalume and painted Galvalume sheets suffer rapid corrosion when in contact with mortar and concrete.

Bare Galvanized steel and painted Galvanized perform better in this type of environment.

Now, because aluminum, one of the two metals in Galvalume coating, provides a barrier protection for steel, instead of galvanic or self-healing protection in galvanized steel, scratches and cut edges in Galvalume are less protected.

Galvalume steel is best for use in prefabricated metal wall panels and standing seam metal roof applications with concealed fasteners.

We would not recommend using Galvalume panels with exposed-fastener steel roofing systems such as corrugated or ribbed steel roofs.

Normally, Galvalume is offered in both bare and pre-coated (pre-painted) versions. Most residential-grade Galvalume metal roofing products – like galvanized steel – are coated with Kynar 500 or Hylar 5000 paint finishes.

Install Roof Shingles

$7,500
Average price
Install Metal Roof

$14,500
Average price
Install Flat Roof

$8,225
Average price

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Galvalume has an excellent performance lifespan in bare exposures (unpainted panels) as well.  Both galvanized steel and Galvalume weigh 100 to 150 pounds per 100 square feet and contain about 35% recycled steel post-consumer content.

The cost of Galvalume and Galvalume Plus are about the same as that of galvanized steel.

A product called Galvalume Plus features an extra coating of acrylic. One advantage of Galvalume Plus is that it can be roll-formed dry, without vanishing oil. Thus, Galvalume Plus is very easy to form and install safely in the field, using portable roll-formers.

What is galvanized steel:

Galvanized steel was invented and developed for commercial use in the first half of the 19th Century, so it has nearly 200 years of proven track record. Carbon sheet steel is dipped in molten zinc. It’s more than a coating, however. A chemical bond occurs and produces the telltale “spangles,” the crystalline surface pattern found on galvanized steel.

Tip: Look for G-90 galvanized steel for residential applications not G-60

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