Browse Forums Building A New House 1 May 24, 2009 7:56 pm I know this has been done before, We are building in perth, colorbond roof, with steel frames, any advantages of getting Sarking? we will have high ceilings in the main rooms and are getting reverse cycle air cond. from what ive read its going to be $3000?K! if it will save money in the long run and add value, then ill consider, but otherwise I think ill leave it! Building the Pegasus New Generation Bletchley Pk, Southern River Land purchased 03/2009 Contract 06/2009 Prestart 09/2009 Land cleared/sand Pad 10-12-09 Fittings done 17-12-09 SLAB!! 18-12-09 Brickies started 27-1-10 Roof Started 2-3-10 Lock Up 13-5-10 Re: Do we need Sarking? 2May 24, 2009 8:02 pm I'd leave it! We had this decision to make also and spoke to a couple of a/c people and they all told us that it's overkill and not needed. Building Thread viewtopic.php?f=31&t=13002 Site start: 8th July 2009 Handover: 11/12/2009! 5 months total build time. 40 sqs of luxuary...Bliss! Re: Do we need Sarking? 4May 24, 2009 8:10 pm We agonised over sarking/not sarking but in the end chose to just insulated (batts) and included the alfresco and garage to stop the heat transfer from those areas, we also put in a couple of whirlybirds we hope we have done the right thing but time will tell I guess There are other threads about this including the link below. viewtopic.php?f=20&t=9479&start=20&hilit=sarking Re: Do we need Sarking? 6May 24, 2009 9:06 pm $3K for sarking!!! Thats a bit rich It's costing me under $200 for a couple of rolls to do the roof (the insulation mob i'm using dont do roof work) but to supply and install heavy duty sarking to all external walls is under $400. To sark an average roof should only take about 3-4hrs for a couple of blokes. Ask them, to justify the $3K. Thats like 2 full days for 2 men plus 500% mark up on materials. Re: Do we need Sarking? 7May 24, 2009 9:10 pm noidea sarking , anticon what is the different ? Sarking is just a single layer of reflective foil / paper (one side is usually matt), anticon is a layer of fiber or wool batt sandwiched between 2 layers of reflective foil / paper. Re: Do we need Sarking? 8May 24, 2009 9:11 pm wake_me $3K for sarking!!! Thats a bit rich It's costing me under $200 for a couple of rolls to do the roof (the insulation mob i'm using dont do roof work) but to supply and install heavy duty sarking to all external walls is under $400. To sark an average roof should only take about 3-4hrs for a couple of blokes. Ask them, to justify the $3K. Thats like 2 full days for 2 men plus 500% mark up on materials. Hahaha... I'd be so happy if my price was 3k. Mines 5.5k! I leave you to fend for yourself, figure things out yourself. Terrence Malick Re: Do we need Sarking? 9May 24, 2009 9:20 pm wow the big boys certainly know how to rip people off. sarking is 99.00 a roll heavy duty from bunnings 1.2 mtr wide by 60 mtrs long we used 6 rolls on walls and roof but got them on ebay for 104.00 for 5 rolls and had to pay 99.00 for one roll so less then 200.00 and they charge 3 grand and 5 grand its criminal. we had to get it for our 5 star rating. i have noticed the difference already and the house isnt cladded but if you touch the paper it gets very hot so it does work. stay safe happy building Re: Do we need Sarking? 10May 24, 2009 9:52 pm We got it and definitely don't think it's overkill. It depends on what's important too you. Sarking will significantly reduce heat inside your house during summer months and generally preserve the condition of your insulation batts. I met someone who regretted not getting sarking because of the unbearable heat in the top floor of his McMansion (the evap was useless on some days) and also reckoned his batts were deteriorating (after about 6-7 years) from not having it. He strongly urged me to get sarking. I was already considering it but his story clinched it for me. It's one of those unglamorous but practical inclusions. Some would even say sensible. Like I said, it depends what's important to you. Good luck. Re: Do we need Sarking? 11May 24, 2009 11:00 pm I was told (by the builder too) that sarking wasn't necessary in Perth as its a dry climate and sarking prevents condensation buildup inside the roof cavity. I was told by many people that 4.0 insulation was all that was needed, even with a dark roof. My tac-home-ter: Been in 8 months! Re: Do we need Sarking? 12May 25, 2009 9:30 am annie.s I was told (by the builder too) that sarking wasn't necessary in Perth as its a dry climate and sarking prevents condensation buildup inside the roof cavity. I was told by many people that 4.0 insulation was all that was needed, even with a dark roof. But sarking doesn't only prevent condensation. That's only one part. It reflects radiant heat so it never the roof space doesn't get so hot in the first place, thus saving on cooling costs. It creates a barrier between anything that can get under your tiles etc, and the roof space itself. No build up of dust and crap in the roof space which over time can prevent a fire hazard. The barrier it provides also helps in extreme weather... a leaking roof will mean the water hits the sarking, slides down into the guttering, doesn't enter the roof cavity. Same with embers in bushfire areas. While not all of these benefits will apply to all people, at least a couple will. I've never heard of anyone regretting getting sarking, but I know a few who didn't that wish they did. I leave you to fend for yourself, figure things out yourself. Terrence Malick Re: Do we need Sarking? 13May 25, 2009 11:21 am Ours was $2500, quoted from builder, hence not doing it. Once we spoke with the a/c people and them telling us with the a/c unit we are putting in the house it would be overkill, we decided against it... BUT for $200 odd dollars and getting my husband to do it, we may re-think the idea, but not for $2500. Building Thread viewtopic.php?f=31&t=13002 Site start: 8th July 2009 Handover: 11/12/2009! 5 months total build time. 40 sqs of luxuary...Bliss! Re: Do we need Sarking? 14May 25, 2009 12:00 pm pinkfairymagic Ours was $2500, quoted from builder, hence not doing it. Once we spoke with the a/c people and them telling us with the a/c unit we are putting in the house it would be overkill, we decided against it... BUT for $200 odd dollars and getting my husband to do it, we may re-think the idea, but not for $2500. Pinkfairymagic, i am not too sure what you mean when you say the a/c said you dont need it because of the aircond you are getting. Are you saying that you air cond is big and powerfull enough to overcome the extra heat energy coming through the roof. If so that would be a very naive way to look at it. You should be looking at ways to reduce air cond usage and any sort of sarkign and insulation provided the price is reasonalable is worth doing. Re: Do we need Sarking? 15May 25, 2009 12:32 pm Quote: Once we spoke with the a/c people and them telling us with the a/c unit we are putting in the house it would be overkill Well of course they're going to say that. Sarking minimises the reliance on air conditioning.Why would any air-conditioning company encourage anyone to get sarking? Of course they're going to tell you things like, "it's over kill". Also, evaporative air-cond won't work well on humid days. So, if you plan on having refrigerated air-cond on 24/7 during the summer months then you probably wont need it. Too bad about the environment and your electricity bill. Sadly, there's still a lot of people out there that just don't give a toss about such things. Also, will be a tough job for hubby if your roof is already built. Sarking should be fitted between the the frame and the roof. Lastly, while I'm on a rant, what is it about black or charcoal, concrete tiled roofs anyway???? It's really popular so I don't expect to be winning over new friends with this swipe, but for crying out loud people! Black to absorb as much heat as possible AND concrete to really retain the heat and keep it hot? Why why why? Re: Do we need Sarking? 16May 25, 2009 12:59 pm bnik Quote: Once we spoke with the a/c people and them telling us with the a/c unit we are putting in the house it would be overkill Well of course they're going to say that. Sarking minimises the reliance on air conditioning.Why would any air-conditioning company encourage anyone to get sarking? Of course they're going to tell you things like, "it's over kill". Also, evaporative air-cond won't work well on humid days. So, if you plan on having refrigerated air-cond on 24/7 during the summer months then you probably wont need it. Too bad about the environment and your electricity bill. Sadly, there's still a lot of people out there that just don't give a toss about such things. Also, will be a tough job for hubby if your roof is already built. Sarking should be fitted between the the frame and the roof. Lastly, while I'm on a rant, what is it about black or charcoal, concrete tiled roofs anyway???? It's really popular so I don't expect to be winning over new friends with this swipe, but for crying out loud people! Black to absorb as much heat as possible AND concrete to really retain the heat and keep it hot? Why why why? Yes, I can understand the points you are making. However, I seem to remember reading on this forum the outcome of extensive experimentation that showed that the temperature in the roof-space had a minimal influence on the in-room temperature, especially in really hot weather. Of course, this relies on adequate insulation on top of the ceilings. Part of the reason is that heat rises. In principle, I agree with you. In practice, I suspect it's not as critical as you are suggesting. Cheers zeke Re: Do we need Sarking? 17May 25, 2009 5:27 pm My air cond guy recommended the sarking. My builder, who didnt give me an opinion, gave me a whopping quote of $3800! so I want it but def cant afford it!! any cheaper options? we are going to home building expo in perth on mon so ill have to find out! Building the Pegasus New Generation Bletchley Pk, Southern River Land purchased 03/2009 Contract 06/2009 Prestart 09/2009 Land cleared/sand Pad 10-12-09 Fittings done 17-12-09 SLAB!! 18-12-09 Brickies started 27-1-10 Roof Started 2-3-10 Lock Up 13-5-10 Re: Do we need Sarking? 18May 25, 2009 7:12 pm To be honest it is a standard inclusion with my builder (not one of the big boys) so didn't even question it - mind you the cost will be factored in my price for sure. This thread reinforces to me that my builder is quality - I feel that this should not be an option. JL Re: Do we need Sarking? 19Jun 01, 2009 10:34 pm Can sarking be put in later on after handover? Or does it have to be put in while the roof is under contruction? So, how much is the reasonable price for , say 25 sqm home? I'm building w/ PD , would be interested to hear from anyone who's building with them as well cheers Re: Do we need Sarking? 20Jun 01, 2009 10:39 pm Monichi Can sarking be put in later on after handover? Or does it have to be put in while the roof is under contruction? So, how much is the reasonable price for , say 25 sqm home? I'm building w/ PD , would be interested to hear from anyone who's building with them as well cheers I'm building with PD... single storey 39.5sq house. 5.5k. I leave you to fend for yourself, figure things out yourself. Terrence Malick Building Standards; Getting It Right! Hi all I’m in VIC and had some storm damage in my garage a month ago. Gutter found not fit for purpose. Insurance company saying the guttering and flashing to be fixed… 0 11727 Hello It is good to have a planned bathroom reno to suit your budget and design, living for 10 years I think you need a bathtub 4 10384 Looking to start the journey of becoming an owner builder in SA. Feeling pretty (overly) confident on the building and construction details, but really struggling to find… 0 8424 |