Posts Tagged ‘Insulation’

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Replacing Scrim With GIB – What Does It Cost To Re-GIB?

In previous post we discussed what Scrim and Sarking is and why it should be replaced. Then we talked about just what re-GIBing is. Now we are getting down to it – the money...

What is it Going to Cost to Re-GIB – The Basics

For a straightforward room (a small double room with not too many fiddly bits!) the cost of re-lining with plasterboard (re-GIBing) depends mostly on the wall area that is being covered. It can cost upwards from $800 - $1,000 per room to get the room to a state that it is ready for painting i.e. Plasterboard put up and plastering of the joins to give a smooth finish (GIB Stopping). This price would be for a DIY job with a GIB-stopper hired in. A big factor is whether you do it yourself or hire in the professionals – this will add a lot more to the cost - and if this is the way you are going - get a few quotes.




The type of plasterboard or GIB you use can impact on the cost – GIB Standard® is the most inexpensive – if you use GIB Aqualine® in wet areas such as kitchens, bathrooms and laundry’s or GIB Noiseline® where you want noise reduction then the will cost a bit more. To find out more about the GIB products check out their website.

What is it Going to Cost to Re-GIB – Wait! There’s More!

How you prepare the room for re-GIBing can impact hugely on the cost – are you going to strip all the Scrim and Sarking off? Or just strip off the Scrim and screw Plasterboard to the old Sarking board?

Replacing Sarking with GIB - Cost to Re-GIB - Removing Sarking Boards

Removing The Sarking Boards - Some Dry Rot Exposed

Commonly the Sarking board provides a horizontal bracing element for the house – i.e. there are no Dwangs behind Scrim & Sarking walls – you will need to replace this bracing element if you remove the Scrim & Sarking completely. This is now a structural issue – don’t ignore it! It important to address properly and may involve putting in new Dwangs and/or even using a product such as GIB Braceline®.

Replacing Sarking with GIB - Cost to Re-GIB - Wall Structure After Scrim and Sarking Removed

Wall Structure Once Scrim & Sarking Removed - No Dwangs

If you do remove the Scrim and Sarking completely you never know what you are going to find. Often you find relic’s from a bygone era in the form of old coins, bottles and cutlery, but less fun is finding rot – which will need to be repaired, and the source of the rot identified and fixed, before you can re-GIB. The costs of this kind of find can add up...

Replacing Sarking with GIB - Cost to Re-GIB - Dry Rot in Wall Framing

Dry Rot & Borer Exposed

If you are planning on insulating (which is always a great idea!) this adds to the cost, and again, if you choose higher rated insulation or insulation with noise reduction properties the cost will increase.

How do you insulate if you are not removing the Sarking Board? You can take out every third board and feed the insulation in. This keeps the bracing element of the Sarking Board but allows you to insulate the wall cavity. Just remember where the missing boards are when you are screwing the GIB on!





Something that can really impact the cost of re-lining is what you decide to do with the existing covings, architraves and skirting board – can they be kept in place? Removed and reused? Or do they need to be replaced? The majority of re-GIBing situations require coving, skirting board and architraves to be removed.

Sometimes a ‘work-around’ can be arranged if you have intricate moulded covings you want keep. Re-GIBing can be done where the GIB butts up next to architraves and sits on top of skirting boards – but in most cases it is hard to get a good finish with this technique.

So replacing your Scrim and Sarking wall linings is going to take a bit of planning, and probably a bit more money than you thought - so make sure you have the time and the budget to do it properly before you start.

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Replacing Scrim With GIB – What Is Re-GIBing?

Last week we discussed just what Scrim & Sarking is and how to identify it. Then we talked about why GIB should be replaced. Now, before we move on to the cost of re-GIBing, we are discussing just what re-GIBing is...

What Is Relining? Or Re-GIBing?

Relining or Re-GIB is when Scrim (or any other inferior wall lining) is replaced with plasterboard. In NZ Plasterboard is commonly referred to as GIB – this is the brand name for the most commonly sold form of plasterboard. GIB has been around for a long time and is considered an iconic NZ brand.

What is GIB or Plasterboard?

Plasterboard is a rigid board which is made by casting gypsum plaster and coating with paper. All plasterboard resists fire and is the most commonly used wall board product in new builds. Current building regulations require certain specifications for wall board and fire ratings for all walls. Modern plasterboard is designed to meet these requirements.

re-GIBing - replacing scrim with GIB

Scrim and Sarking Removed - New GIB On

Once new plasterboard has been put up the final part of the re-GIBing process is GIB-stopping. GIB stopping is where the joins between the GIB sheets are plastered to give a seamless finish. While working out how to put up GIB just takes a bit of research, the right tools, planning and some muscle – GIB-stopping is a bit of an art! It pays to hire in some highly recommended GIB stopping talent for this bit.

GIB is made by Winstone Wallboards. On their website they have all the resources you need to find out about GIB and how to install it.

Re-GIBing – It’s Just a Small Part of Renovation

Re-Gibing it not just about putting up some plasterboard – it is an opportunity to sort out a lot of things in a room, when you strip off the old Scrim &/or Sarking Board you are going to get a window of opportunity to access difficult areas and usually inaccessible components of your house.

This is a great opportunity to insulate! Insulating exterior walls is a must, but even insulating interior walls with normal or sound proof insulation can improve your enjoyment of your home, keeping it warmer and quieter!

re-GIBing - replacing scrim with GIB

New Insulation & New Wiring Including CAT5

You can take the opportunity to replace old wiring in a room you are re-GIBing and even put in more plugs, light fittings and switches. What about wiring for speakers etc? And have you considered smart wiring (CAT 5)?

Next Post - Re-GIBing Scrim - What is it going to cost to re-GIB

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