How much does a silicone roof cost?

How Much Does a Silicone Roof Cost?

How much does a silicone roof cost? The costs of a silicone roof can vary from a few hundred for a few sealing patches, to thousands of dollars for a full sealing job.

So, if you’re wondering if there’s a cost-saving alternative to a complete roof replacement, there is. Silicone restoration membrane is a fluid coating applied over an existing roof substrate. Without breaking the bank, it is an effective means of restoring and protecting a broad spectrum of commercial and residential roofing surfaces.

Silicone restoration membranes (SRM or Silicone Roof Coatings) can save you thousands in labour, materials, and time. It is an ideal alternative when you are looking to extend the life of your roof and mend any minor damage from the ravages of time.

So, how much does a silicone roof cost?

There are several factors to consider when evaluating the potential costs of an SRM installation. In this article, we’ll provide a comprehensive breakdown of the varied costs of Silicone coatings and cover some important considerations to get the best price when installing your SRM.


Silicone is a premier spray application that can be about 50% more cost-effective than a typical tear up & re-lay roofing solutions. Roof sealing costs can be on average between $7,000 and $12,000. Silicone roof coating offers a level of protection that can prolong the life of your existing roof substrate. Without removing the existing roof to replace it, you can save money on labour and materials.

how much does a silicone roof cost?

Here are some of the main factors influencing costs

1. Costs Per Square Foot

Depending on various factors, including the brand and type of silicone coating used, whether you hire a contractor or not, accessibility, the complexity of your roof design, and your home’s location, costs can decrease to around $3.50 to $7.00 per square foot. Material costs can increase installation prices up to $10 per square foot or more. 

2. Roof Contractors

Roof repair contractors charge an hourly rate of anywhere between $40 to $90 or more. While it may be tempting to do it yourself, hiring a professional can save you time and stress and ensure the job is done proficiently from the onset to prevent future damage and restoration costs.

3. Roof Size

The size of your roof and the number of stories in your house significantly affects SRM prices. Surprisingly, smaller roofs cost more to coat than larger roofs. Approximate prices are as follows:

  • Small roofs – $27/m2 – $37/m2
  • Medium roofs – $22/m2 – $27
  • Large roofs – $17/m2 – $22/m2


Silicone roof coatings offer several key advantages that can save you money immediately and in the long term. When considering “how much does a silicone roof cost?”, it is equally important to evaluate how the advantages of SRMs can decrease the costs to you in the future.

Efficient Application

Because of a higher solids content than other roof coatings, SRMs can often be effectively installed with a single coating rather than in several layers, saving additional dollars in reduced labour costs. This contributes to its longevity, performance, and durability, lessening the need for restorations over time, therefore, lowering maintenance costs.

Another advantage is that silicone roof coatings can often be applied directly onto the existing substrate without a primer, reducing application time and labour costs. Whether a primer is required or not can be determined through an infrared inspection and adhesion test.

applying silicone roof

No waste disposal fees

As the SRM is ‘painted over’ an existing roof surface, the amount of waste product is reduced, effectively eliminating disposal costs of the old roof surface.


Silicone is resistant to the stagnant ponding of water that tends to collect on roofs, making it ideal for commercial and residential flat roofs. Unlike other acrylic-based coatings, it is naturally waterproof and damp resistant. Silicone coating is immune to the severe impacts of moisture damage, making it one of the most significant benefits of SRMs as an investment to prevent future restorations costs.


Silicone roof membranes don’t erode like other coatings. While they may require recoating eventually, they typically last much longer than other surface applications on the market, saving you money in the long run. They can withstand wind, ponding water, oxidation, extreme temperatures and are highly UV resistant.


Liquid silicone coatings are highly flexible, elastomeric and can endure the natural expansion and contraction in different types of roofing substrates, providing thermal shock protection through temperature changes.

Energy Saving

Silicone roof membranes prolong the life of all existing roofing systems, providing immediate and long-term cost and energy savings. It can reduce thermal heat intake into commercial and residential buildings, saving considerable energy costs by as much as 15 to 35% in some cases.


With over 15 years of roofing experience, Vertec Roofing is the name you can trust for all your commercial and residential roof coating needs. Our team prides itself on doing things differently. When you engage our expert team, you can expect a personable and dependable service: no hidden expenses, just premium roof coating installations at fair and cost-effective prices.

Offering exceptional roof repairsroof replacements and roof restorations, we service locations across Sydney and Canberra and can help you choose the suitable coating for your roof. Give us a call on (02) 8007 4366 today!

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