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What Is The Weight Of Roofing Materials? [Answered]

The weight of the roofing material is a major concern while setting up a roof. The ideal roof material weight is critical for the building’s safety and lifespan.

What is the weight of roofing materials?

Different materials have different weights. Asphalt shingles are lightweight materials. Clay tiles and ceramic slates are comparatively heavier. The materials are heavier after installation with the necessary attachment tools. So you’ll need to keep that in consideration while calculating the weight.

This information might have given you a vague idea, so you must be digging for more. We have an article with a list of weights of all popular roofing materials.

Let’s dive into the article to learn more!

What is the Weight of Roofing Materials?

The weights of various roofing materials vary. Too heavy materials can be fatal in terms of earthquakes. Too light materials can rip off in strong storms. You must think about the weight of the roofing materials to fit the architectural framework.

Here is a list of weights in square feet for different roofing materials:

Roofing Materiallb/
Asphalt roll roofing1.15.4
Asphalt shingle or asphalt-fiberglass composite shingle2.713.2
Metal roofing1.25.9
Terne plate0.73.4
Wood shingle or shake2.411.7
Zinc roofing1.67.8
Copper-asphalt composite shingle4.220
Asphalt roll roofing1.15.4
Roofing materials like felt, tar, and gravel 3 ply4.823.4
Roofing materials like felt, tar, and gravel 4 ply5.325.9
Roofing materials like felt, tar, and gravel 5 ply6.129.8
Roofing materials like felt, tar, and gravel 3 ply4.522.5
Roofing materials like felt, tar, and gravel 4 ply4.823.4
Roofing materials like felt, tar, and gravel 5 ply5.325.9
Ceramic slate5.828.3
Reconstituted slate4.421.5
Clay tile10.852.7
Asphalt roll roofing1.1 5.4 
Concrete tile9.345.4
Slate 1/4″ to 3/16 thick9.1 44.4
Slate 3/8″ thick12.862.5
Slate 1/2″ thick18.891.8
Slate 3/4″ thick26.0127 

The stated weights are of uninstalled products. These weights may vary from installed products. When estimating total roof weight, don’t forget to include all roof assembly materials.

Does the Weight of the Roof Matter?

Yes, the weight of the roof does matter. Let’s have a view of some facts that need to be considered.

Many roofing materials lack interlocking characteristics. Also, some have a few fasteners to secure them to the structure of your property. If the materials aren’t substantial enough, they won’t hold up in severe winds.

The structural materials of a roof degrade as it ages. This is a concern with most engineered woods, as well as dimensional timber. When it comes to fire-treated woods, this is usually a major consideration. 

A lower strength structure is more probable to shift or move under the high weight.

A lighter roof can help protect your property from damage caused by earthquakes. It also lowers the chance of a roof collapse in the event of a fire. In fact, fire crews will not venture inside a home with a very heavy roof. This is due to the possibility of the roof falling.

Different Roofing Materials & Their Weight

Nowadays, there are many kinds of roofing materials. Each has its own pros and cons. We will do a brief discussion over all the relevant information on the roofing materials. 

Cardboard and Aluminum

They are extremely lightweight. Per 100 square feet, the aluminum standing seam weighs roughly 70 pounds. It makes them excellent for buildings with low resistance. They are quite modern. 

These can be put on any construction site, which has simple foundations that can withstand any load. The solution to their resistance is to place scissors behind the plate. This is appropriate for tile roofs that have dead loads.

Covers are carried by the aluminum shears, which are waterproof and insulated sheets of special plasterboard. This ensures that the tile roof or other type is properly installed.

Acrylic and Metallic

Its adaptability and lightweight make it excellent for terraces and outdoor patios. Acrylic sheets are durable for 5 to 10 years. They weigh around 60 pounds per 100 square feet.

Angles and wall anchoring are used to build their structure. As a result, they are incredibly light and easy to install. Metal roofing on plywood is also a good option.

But the acrylic panels should not be more than 60 centimeters. They will form the roof. They can withstand the weight of 24 gauge metal roofing, which is commonly used in these places.


This sort of construction has to be painted using slate-specific paints. Woods are particularly cost-effective because of the variety of structural timber available. These weigh around 2.4 pounds per square foot. 

The best alternative is to leave the framework exposed and paint it. Use any color you choose for a decorative touch. 

Also, apply the appropriate waterproofing. It will result in a roof that is safe, cost-effective, long-lasting, and attractive.


Brick vaults provide authentic and attractive designs ideal for interiors. Bricks on joists provide strong and dependable support. It’s quite heavy with a weight of 1600 Kilograms per cubic foot.

They’re creating warm designs that take into account the region’s light and environment. They are incredibly cost-effective when it comes to building buildings and roofing today. A few coats of paint can be used to highlight and give a unique touch.

Its basic structure is made up of wooden beams and bars. Which are supported by clay tiles or other materials. When coupled with any tile, it creates a pleasant, basic, fresh, and safe environment.

Reeds on Steel

It’s perfect for outdoor areas that need to sustain a lot of weight. These weigh about 85 – 120 pounds per 100 square feet of roof area.

Steel beams support the construction. This is supported with squares in the columns, sides, and medium angles. Laterally, the reeds are secured with boards. Natural light may be used as a decorative feature in a modern style.

It may be used to mix ornamental elements in the modern period. Roofing can cost differently depending on the material since it’s cost-effective and versatile. The material may be cleaned and also replaced when needed. 

Concrete Slab

Concrete slabs weigh around 49.50lb per square foot for the 4-inch thick slab. For a 3 inch concrete slab, the weight will be around 37.50 lb/ sq feet.

Combine a monolithic structure with steel without using additional finishes. The goal is to expose the slab’s inside, which adds an attractive touch. Waterproofing and proper warmth are required on the outside. 

It’s a cost-effective and safe solution. Because its construction doesn’t need massive soffits and finishes.

Lightened Joist Slab

Lightweight concrete weighs 14.5 pounds per square foot with a normal thickness of 1.5 inches.

It’s basically a mixture of concrete and steel reinforcement. It’s made up of a number of interlocking beams that are insulated with polyethylene. They are supported on the sides and below by dimensional wood formwork. It helps to weigh the slab off these hefty roofs.

Lightened joist slabs used for tile roofs are suitable for installing tiles. Because of their strength and safety, they give long-term protection. Bearing the weight of asphalt and aluminum shingles, as well as their components. 

They aren’t the cheapest, but they are the safest at the present. 

Roofing Sheets

Roofing sheets are utilized to create roofs that act as structures. It is conceivable because of the versatility of the material and design of these metal roofs.

0.80 mm steel sheets weigh around 8.3 kilograms per square meter. Roofing sheets are constructed by steel beams that hold sheet metal plates. These give the home an industrial and modern feel. 

They come in a range of ribbed styles that will catch your attention. They must be painted with specific anti-corrosive roofing paints and waterproofed properly.

There you go, now you know all about the weight of roofing materials. We hope this information will assist you in remodeling or replacing your home’s roof.


Question: What is a lightweight roof tile?

Answer: Lightweight roof tiles are tiles that weigh under 20kg. Metal tiles, shingles, and synthetic slates are examples of lightweight tiles.

Question: What is PVC roofing?

Answer: PVC is excellent single-ply roofing material. It’s more cost-effective. It uses less oil and petroleum than thermoplastic polyolefin (TPO).

Question: What is the heaviest roofing material?

Answer: Genuine state. The heaviest roofing material is genuine slate. Per 100 square feet, it may weigh up to 1,500 pounds.


We hope we cleared out all your questions regarding the weight of roofing materials. Analyze the information to choose the best fit for your roof.

Make sure to know all the details before choosing your roof material.

Till next time, good luck!