The roof is an important part of the house that requires the same attention and protection as the walls and the foundation. This is especially true for places that often see rainy and humid days.

No one wants a leaky roof, so the installation of adequate protection is important.

There are a lot of synthetic underlayment options to protect your roof. We have seen an increase in the popularity of synthetic underlayments for wood as well asphalt roofing.

One of the most versatile and beneficial underlayments is the GAF deck armor. There are many reasons why we hear contractors recommending deck armor

Let’s take a detailed look at the benefits of GAF deck armor and whether it is worth your bucks. 

Is GAF Deck Armor Worth It?

Whether or not roof underlayment is required for your roof type, it’s always nice to have added protection. GAF Deck armor is worth the effort and cost. It protects the deck against leaks and offers a slip-resistant surface, low internal pressure, and permeability to moisture.

GAF deck armor provides an extra layer of protection between the roof deck and the shingles. This helps to prevent damage due to rain driven by wind. It prevents moisture from entering through the shingles and causing damage to your home or roof structure.

In addition, it also allows the trapped moisture inside to vent out. This helps deter structural decay due to moisture, mildew, and mold.

One of the most harmful things that deteriorate any roof is thermal shock or temperature swings in the external environment. These temperature changes make the roof expand and contract. For example, if metal covers your top, you can imagine the effects of expansion and contraction on your roof. 

GAF deck armor is one of the best solutions. It enables your entire underlayment to work efficiently like a vent rather than producing a greenhouse effect.

Typically, other synthetic procedures for roof protection create pressure conditions in unwanted spaces of your house.

Why Use GAF For Your Roof?

In contrast, deck armor is hands down the best option to create a stable environment by diffusing the pressure from your roof system.

Another useful thing about a GAF deck armor is that it is highly slip-resistant compared to other products on the market that claim a level of walkability.

Why Use GAF For Your Roof?

Many contractors and users claim that the deck armor does not lose any of its resistance to slip even after rain.

Here are a few more perks of using GAF Deck armor:

  • It is an exceptionally strong option to protect your roof deck due to its 600% greater tear strength than many competitors.
  • Extremely durable. 
  • Unlike the standard felts made with asphalt, the GAF deck armor does not make the non-asphaltic constructions brittle or rot.
  • If you have expensive lifetime shingles installed on your roof, the GAF Deck armor offers long-lasting protection for your roof.
  • Unlike other conventional procedures, the deck armor protection will reduce buckling and wrinkling, letting the shingles lie flat and consequently giving an aesthetically pleasing look to your roof. 
  • It has an extremely low perm rating. 16 perm rating enables it to keep unvented areas of the house breathable, mold and moisture free. 
GAF Deck Armor can save you money in the long run

Is GAF Deck Armor Good For Non-Vented Spaces?

One of the best features of deck armor is that it is a very good option for non-vented spaces like attics, giving an extra layer of protection against rains and leaks.

Which Is Better, Tiger Paw Versus GAF Deck Armor?

There is no comparison between these roof protection options because they are designed for different situations. Tiger Paw is a good choice only for roofs that are made with asphalt shingles that are vented. On the other hand, GAF Deck armor can give a lively feeling to non-vented conditioned spaces like attics.

What Is The Perm Rating Of GAF Deck Armor?

The perm rating of deck armor is 16 perms, which is very low compared to other options. This is why the deck armor does not let moisture slip inside the house, accumulate inside, or damage the roof.

In technical terms, perm rating measures the permeability of water vapor for any material. The higher the perm rating, the more efficient that material is in diffusing moisture and fluids.