Roof Sarking & Insulation: Can You Have Both?

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Roof sarking is a critical part of a properly installed roof system. It provides protection to your underlayment and insulation, so they last longer and perform better. Roof sarking also increases home energy efficiency because it protects the house’s structure from moisture and UV damage.

What is roof sarking?

Roof sarking is a waterproofing and insulating material that’s installed as part of the roof deck. It’s used to keep water off the roof’s decking and prevent leaks in your home. Roof sarking is installed under the shingles, metal, or tiles so that it’s not visible from the outside of your home.

Roof sarking protects the insulation from UV and moisture damage

Roof sarking aims to protect your home from UV and moisture damage. Insulation can also help your home resist UV damage, but it will unfortunately not protect it from moisture damage.

Roof sarking can be made from different materials, such as aluminum or plastic. It’s usually installed after any insulation has been applied to your roof but can also be used as an initial layer when installing new shingles or other products. Please view the image below comparing the two:

Insulation (left), Sarking (right)

Roof sarking must be installed before any other layers are added on top of it because it protects everything else from getting damaged due to exposure to weather conditions like rain or snowfall, which would cause premature degradation if not appropriately protected by a protective barrier.

Roof sarking, ventilation, and insulation

Roof sarking is a thin layer of material that is placed on the roof deck. It’s then placed between the roof deck and insulation to protect it from UV damage, moisture damage, and other elements that could compromise its performance. Roof sarking is designed to work in conjunction with your roof insulation.

Roof sarking can be made from many materials, including aluminum or granulated rubber (GRP). The purpose of using a vapor barrier like this is to keep moisture from penetrating the insulation, which would make it less effective at insulating your home’s interior against temperature fluctuations.

Sarking is your roof’s first line of defense against the elements

Roof sarking is the second line of defense against the elements next to your roofing material. It protects your home from UV and moisture damage, which can cause the components to break down faster than they usually would. Roof sarking also protects against fire damage, water damage, hail damage, and ice damming (ice buildup that causes leaks).

Sarking & Insulation – Can You Have Both?

Answer: Yes.

Sarking is a great way to protect your roof from the elements. It helps insulate against the heat and cold and prevents moisture from entering your attic space. Plus, sarking can be installed on top of existing insulation if needed! So now that you know what roof sarking is, we hope you’ll feel confident in making a decision on whether or not this solution could work well for your home—and help us keep those pesky drafts at bay while we get through these colder months ahead! Give us a call now for a custom quote & inspection.

Very professional service👍
Update: They arrived on time, professional, tidy and clean work, we asked for photos of the roof work and we received it. Thanks.
Response from the owner:Thanks Yu
Great communication prior to roof assessment and all issues clearly outlined. Highly recommend
Response from the owner:Thanks Garth
I had Josh inspect my roof and was impressed with his service.
Response from the owner:Thanks Evan
Roof was repaired, no more holes, bloody good crew, quick job, easy going lads. Not much you can ask for
Response from the owner:Thanks Sam
Fast, efficient service by Josh. Job done in record time.
Response from the owner:Thanks for the review
Came promptly to look at my roof and provided detailed information on what was wrong.
Response from the owner:Thanks the review Yeolanda.
We have just read the other reviews and we agree with them all. Excellent clear communication from both the working team and the office. Prompt. Diligent. Hard-working and no fuss, even in 38 degrees! Really impressive. We now look forward to seeing how our repaired roof deals with the elements over the coming months. Hopefully no need to call on their 10 year warranty!
Response from the owner:Thanks for the review and kind words Wendy.
We were impressed with how quickly the team responded to our inquiry. They provided a comprehensive quote and explained the repairs in detail. Looking forward to seeing the finished work!
Response from the owner:Thanks Joshua
Roof Repairs Perth WA provided outstanding service during our inspection. They were professional, explained the issues clearly, and gave a detailed quote. Highly reliable and trustworthy team!
Response from the owner:Thanks Natalie
Impressive service from start to finish! The team explained the repair process clearly and worked efficiently to address our concerns. Great communication and expertise.
Response from the owner:Thanks Kathy
Josh was excellent—he took the time to explain every aspect of the roof issues and offered practical solutions. His professionalism and attention to detail really stood out. Thanks, Josh!
Response from the owner:Thanks Joe
The team was extremely professional, providing a clear and concise explanation of the issues with our roof. The inspection process was thorough, and the photos helped us understand the necessary repairs. Highly recommend
Response from the owner:Thanks Mateo
Vinnie’s detailed approach to explaining what was wrong with our roof and how they'd fix it was refreshing. He and Josh were thorough without being overbearing, which we really appreciated
Response from the owner:Thanks Greg
Had a great chat with Lauren who got all our paperwork sorted out super quick, and hats off to Josh for not making the roof stuff sound like rocket science. Really felt like I was in good hands.
Response from the owner:Thanks Jen
A big thanks to Vinnie for overseeing the project personally. His expertise and dedication were evident, just as Josh’s thorough assessment reassured us of the high standard of work
Response from the owner:Thanks Jeremiah
After having trouble finding a roof repairer. Roof Repairs Perth WA really came to our rescue they gave Amazing service and were wonderful to deal with. Communication was excellent as well as being a great price. Highly recommend
Response from the owner:Thanks for the review
First class service with this business.
From the assessment through to the quotation, booking, communication and repairs , it was a seamless process. The team that performed the job were polite, courteous, professional, tidy and clean. They turned up when they said they would and walked us through every stage. Fantastic experience :-)
Response from the owner:Thanks for the review Ben
Lauren’s professionalism in handling our appointment and follow-ups was exceptional. She and Josh were a great team, ensuring everything was clearly explained and efficiently executed
Response from the owner:Thanks Jack
Josh did an awesome job
Response from the owner:Thanks Devida
Response from the owner:Thanks Jad
Josh gave great service, adjusting his attendance to my needs, and providing a clear and concise quote for what was needed to fix my roof issues, and to keep the roof functional for years to come. Thanks, Josh
Response from the owner:Thanks Jo
Josh was thorough in his inspection and clearly explained the issues and possible remedies.
Response from the owner:Thanks for the review Shane
Have just had a quote at this stage but so far the company have been great to deal with in arranging a quote. Josh who came out was really helpful explaining the issues and exactly how they plan to fix them. Very efficient and clear and aren’t trying to oversell on what needs doing.
Response from the owner:Thanks for the review Kate
Just had Perth Roof Repairs out to quote on our roof. Lots of photos taken and good explanation as to what is happening up there.
Very professional, neat and tidy, articulate. Would recommend.
Looking forward to the quote!
Response from the owner:Thanks Lynn
Excellent prompt communication, reliabity and workmanship.
Response from the owner:Thanks Sandra.
Everyone I spoke to was very helpful and friendly, they got out to have a look at our roof in a timely manner and helped us find a solve for our problems.
Response from the owner:Thanks Jeremy
Response from the owner:Thanks Luke
Josh was friendly and very helpful with answers. Whole experience was positive and professional.
Response from the owner:Thanks Voodoo
Lauren was incredibly helpful, keeping us updated throughout the repair process. Her coordination with Josh, who handled the onsite work was seamless.
Response from the owner:Thanks for the review Zach
Vinnie, the owner, personally ensured that all aspects of our roof repair were up to standard. His team, led by Josh, provided detailed photos to verify their findings, making us feel confident in their service.
Response from the owner:Thanks Ralph
Josh was very helpful in providing the feedback and required jobs around the property for the quote. He explained in detail the issues and was able to answer all my questions. Thank you

The site team (Elis and Sanjay) did a great job delivering great service and quality finish standards for the roofing services that was needed. The detailed work carried out with the proper care to excellent finish. Thank you once again team for the great job and onsite feedback after completion. Really appreciate the efforts
Response from the owner:Thanks for the review Kirat
Josh was extremely knowledgable and was happy to answer any questions on the spot about the issues identified. Very professional!
Response from the owner:Thanks for the review Ryan
Josh was excellent, and so was Lauren from the admin team, who facilitated all our communications Smoothly. Their combined professionalism made the entire process a breeze.
Response from the owner:Thank you Robert
Response from the owner:Thanks for the review Rob
Josh was very professional and knowledgeable - he took the time to listen and was able to clearly explain the problem and resolution.
Response from the owner:Thanks for the review Paul
Josh from Roof Repairs was very professional and courteous. He is very knowledgeable and we are confident that the work and quoting is honest and reliable. All problems identified with our roof were backed up with photographs to verify.
Response from the owner:Thanks Julie
Awesome to deal with from the very thorough quote through to the admin communication and the amazing, efficient team carrying out the work. Highly reccommend!
Response from the owner:Thanks for the review Jody
I can highly recommend Roof Repairs Perth WA. They were very clear in their communication and quoting process. Their pricing was fair and competitive. Ellis and Sanjay did an excellent job. They were very polite and worked extremely hard and did an excellent job. Thankyou so much.
Response from the owner:Thanks for the review Judith
Response from the owner:Thanks Bruce
Response from the owner:Thanks for the review
Fantastic service all round.

From the quote through the completion of the job.

Would highly recommend
Response from the owner:Thanks Steven
Great communication throughout the inspection process.
Josh attended and was knowledgeable and conscious of our requirements to resolve issues. Thanks!
Response from the owner:Thanks Stephen
Josh was extremely easy to deal with, he was responsive to every question and explained what he thought might be happening and what is probably not happening. Very happy to recommend.
Response from the owner:Thanks for the review Andrew
Prompt service, accommodated my availability. Very good with the issues which need repairing and resolution to fixing the problem
Response from the owner:Thank you for the review.
Response from the owner:Thanks for the review Calvin
Josh arrived on time to provide a quote. He explained thoroughly the work that needed to be done and gave me a clear understanding of essential repairs required.
Response from the owner:Thanks Dee
My tiled roof was in need of a lot of maintenance to fix many leaks and water damage. Josh and his team were hard working and meticulous in repairing the roof. I can highly recommend Roof Repairs.
Response from the owner:Thanks for the review Peter
Josh was extremely efficient advising me on his arrival time- and was

I was then advised how the quote process would work and timing and the work required after a comprehensive inspection.

Roof Repairs Perth WA are extremely professional and I would recommend you contact them for assistance

Regards
Steve
Response from the owner:Thanks Steve
I just want to give a shoutout to Josh, who came out to assess what work needs to be done on my roof. It was clear Josh knew his stuff and was serious about ensuring that nothing was missed. I was impressed by his professionalism and expertise. Looking forward to getting the work done!
Response from the owner:Thanks Amy

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