WeatherLogic Vs. Zip Sheathing: A Comparative Approach

When it comes to a discussion of any integrated wall sheathing system to ensure that a house is firmly protected from unfavorable wind and air, both WeatherLogic and Zip have brought forth a narrow competition.

They are quite similar with little differences, but these differences play a vital role in the choice.

WeatherLogic is more affordable, less popular, and comes with no benefit to its warranty when compares to Zip. Let’s go through these with a detailed approach for better understanding.

A Quick Comparison Table

Water/Moisture ResistanceResistsResists
Warranty30 years30 years with small benefit
Structural DurabilityStructural 1Structural 1
Needs Housewrap to Install?NoNo

Key Differences Between WeatherLogic And Zip Sheathing

  • Water/Moisture Resistance
Weatherlogic Roof Sheathing
WeatherLogic Roof Sheathing

Both companies are keeping a well-established reputation in the market by providing products built with the highest technology which ensures proper water/moisture resistance.

Therefore, the attentively built water-resistance barriers have enough permeability which allows excess water to stay out but allows the water vapor to pass in and out at ease.

Thus, the living environment doesn’t feel stuffy or uncomfortable since a balance is achieved which promises the right ratio of drying protection and water protection.

Little is revealed about the perm value for each brand. However, during purchase, such numbers are made transparent to buyers.

  • Warranty

The basic warranty limit for such devices is 30 years sharp. It has been noted that both WeatherLogic and Zip have maintained this value.

Zip however decided to step up their game and included an additional 180-day exposure guarantee!

This added feature makes it quite alluring compared to WeatherLogic as there is more consideration that favors cost efficiency if things go wrong.

  • Price

WeatherLogic is more affordable, so if you’re trying to save money this is the choice to land on. It is important to keep in mind that this company offers top-notch products at an affordable value.

They just need a little more time and development to step up their game even more.

There aren’t too many significant differences, so it’s completely up to the buyer’s opinion. If you think that a few extra bucks for some additional features are worth it then Zip is totally fine to purchase, if not then best to get WeatherLogic.

  • Popularity
Zip Sheathing

Zip has existed in the market long enough to be known by a vast crowd.

Compared to that, though WeatherLogic has introduced itself as a worthy opponent, the brand has yet to reach such a point of recognition.

Due to less awareness, WeatherLogic’s whereabouts/availability in certain areas is still unknown.

Furthermore, this unaware feature makes it less preferable since buyers don’t know what they are getting into.

Rest assured, this brand is evolving quite impressively and is worth the shot!

  • Structural Durability

System panels offered by each brand come with a Structural 1 rating. This means that panels are manufactured with well-engineered wood to maintain resistance to excess water and air penetration.

Moreover, this gives it more sturdiness to withstand strong winds which is particularly a huge benefit for buildings/houses built in areas that are subjected to strong winds.

  • Needs Housewrap to Install?

Installation is yet another aspect they’ve met eye to eye with.

The installation has been made easy and cost-efficient for these two companies.

The integrated panel sheathing technology makes it easier to install without placing any wrap on the structure once the sheathing installation has been dealt with. Ergo, the wrap is not needed at all in this advanced installment process.

As stated, this is also very cost-efficient since so extra cost is required for labor, which would be the opposite if wraps were needed. Here is how to install WeatherLogic sheathing.

Key Features and Benefits of ZIP System Wall Sheathing

ZIP System sheathing and tape provides a fully integrated exterior wall system with built-in moisture, air, and thermal protection. Here is a closer look at some of the standout features that make ZIP System a high-performancesheathing choice:

Integrated Underlayment

  • ZIP System features a flexible protective membrane laminated to the exterior surface of the structural wood sheathing.
  • This integrated underlayment acts as a water-resistive barrier, equivalent to Grade D building paper.
  • Provides superior moisture protection compared to traditional building wraps or tar paper.
  • Membrane is overlapped in a shingle-style fashion with upper panels over lower ones.
  • Fewer seams, holes, and potential leak points versus separate wraps.

Adhesive-Backed Tape

  • ZIP System includes a high-quality ZIP tape to seal all panel joints.
  • Tape has a highly adhesive backing that creates an air-tight seal.
  • Used at all overlapping seams and edges to completely seal sheathing layers.
  • Provides excellent air sealing qualities to reduce energy loss from air leaks.
  • Tape goes on quickly and easily during installation without special tools.

Engineered Wood Sheathing

  • ZIP System features OSB (oriented strand board) or plywood structural sheathing cores.
  • OSB offers racking shear strength superior to gypsum or fiberboard alternatives.
  • Wood layers are cross-laminated to maximize shear wall performance.
  • Provides excellent wind load resistance and structural integrity.
  • Meets same exposure durability standards as regular OSB and plywood.

Vapor Permeable

  • The ZIP System underlayment is vapor permeable to allow moisture diffusion.
  • Prevents excess moisture buildup in the wall cavity.
  • Allows walls the ability to dry to the exterior as needed.
  • Avoids trapped moisture that can lead to mold, rot, or degradation of structural components.

Thermal Insulation

  • OSB and plywood provide higher R-value than other common sheathings.
  • R-values range from R-1 to R-1.5 depending on thickness.
  • Provides a thermal break to reduce heat flow through studs.
  • Can support continuous rigid foam for even higher insulation values.

Warranty Coverage

  • Backed by a 30-year limited warranty from manufacturer.
  • Covers defects in materials and manufacturing.
  • Warranties transferable to new owners giving buyers peace of mind.
  • Indicates confidence in expected lifetime performance.

These integrated features make ZIP System a premium wall sheathing with excellent structural, air sealing, moisture protection, and thermal qualities. The warranty coverage provides additional assurance of real-world performance.

While ZIP System costs more upfront than basic OSB, the engineered properties can justify the investment in many home builds.

Key Features and Benefits of DensGlass WeatherLogic Sheathing

DensGlass WeatherLogic is an exterior wall sheathing product from Georgia-Pacific composed of a gypsum core faced with a fiberglass mat. It integrates a unique fluid-applied coating to create an air and weather barrier system. Here are some of its notable features and advantages:

Integrated Air and Moisture Barrier

  • Features a factory-applied fluid-applied coating on the exterior side.
  • Forms a continuous air and moisture barrier when panels are joined.
  • Eliminates the need for building wraps or tar paper.
  • Reduces air leakage for improved energy efficiency.
  • Protects against bulk water intrusion from rain and moisture.

Unique Fiberglass Mats

  • Faced with absorbent DensGlass mats on both sides.
  • Mats absorb water then dry quickly to resist mold and mildew growth.
  • Allow walls to breathe and drain effectively.
  • Provide bondable surface for exterior finishes or siding.

Fire-Resistant Gypsum Core

  • Non-combustible gypsum core achieves fire ratings up to 2 hours.
  • Core contains glass fibers for added fire resistance.
  • Offers protection against fire spread in residential and commercial buildings.
  • Achieves a Class A flame spread rating when tested to ASTM E84.

Wind and Shear Resistance

  • Provides shear and bond strength to form load-bearing walls.
  • Approved for use in shear walls to resist wind forces.
  • Can be used to create tall wall assemblies.
  • Lighter than OSB but still provides lateral strength when installed properly.

Mold and Moisture Resistance

  • Treated core resists mold, mildew and moisture degradation.
  • Does not promote fungus or mold growth with proper installation.
  • Allows walls to dry evenly and prevents moisture buildup.

Versatile Thicknesses

  • Available in 1/2-inch and 5/8-inch standard thicknesses.
  • Can be ordered in custom thicknesses down to 1/4-inch.
  • Thinner than exterior gypsum boards for use in more assemblies.
  • Can be double-layered for improved sound attenuation.

DensGlass WeatherLogic combines the natural fire resistance and mold prevention of gypsum with an integrated barrier system to create a high-performance sheathing. The moisture-control properties and thinner profile help enhance energy efficiency in both commercial and residential projects.

Frequently Asked Questions (FAQ)

What is WeatherLogic?

WeatherLogic is a rather new company that provides integrated wall sheathing systems which supply both water and air protection. They further escalate the structural integrity of the building.
Though it hasn’t existed longer than its competitors, it has performed remarkably which is quite unexpected for a young brand. This company has shown promising potential and is affordable, product quality is increasing as it further innovates.

Is Zip System Better Than Tyvek?

As both are each other’s competition, there’s been claims made for each of them to be better than the other.
Both brands offer services with pros and cons and differences and similarities. There isn’t a definite nor universal answer, to the question of which is better than which since at the end of the day, your purchase will be based on your preference and requirements.
The best thing to do is to consult with building envelope experts and an insurance provider. It is also recommended that the warranties are reviewed professionally by a lawyer before finalizing the decision of which product should be installed. This is strongly advised to avoid any high risk.

Is Zip sheathing worth the cost?

It has been discussed earlier that Zip is not the cost-friendliest option.
Despite this, it has maintained a great height of good reputation in the market thanks to its service provided. In fact, in this modern day and age, it is preferred by most builders due to having such an easy application. This simplicity paired with its being energy efficient makes it more reliable.
It also comes with an exposure guarantee, which is quite rare come by. Possessing such attractive and reliable features truly compels one to believe that every penny spent on this purchase has been spent with no waste.
So yes, Zip sheathing is worth the cost.

Is Zip system better than house wrap?

The ZIP system has been shown to hold up better resistance against the strong wind to withstand any damage it can lead to. There is a further resistance to uplift and tear which adds up to the strength and durability of the structure. This also reduces the extra cost that would’ve been required for damage repair. Plus, it is especially important to bring into consideration if the residing area is prone to strong winds.
Such high functionality is not an available feature for quite a few rival companies. That being the case, this system is therefore better than house wrap.


WeatherLogic vs. Zip is a battle that has little to debate between. In fact, it is safe to say that WeatherLogic is directly just one step behind Zip. It’s truly shocking to see a new company doing so well.

Limited information is sadly available unless each company is directly approached. Since they are quite similar, the purchase made ultimately depends on preference and what amount the buyer is willing to spend!

Ralph Wade

Hey...Ralph is here! So, did you find this article useful? If so, please leave a comment and let me know. If not, please tell me how I can improve this article. Your feedback is always appreciated. Take love :)

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