Technical Industry Questions - KBLR Kitchen, Bathroom and Laundry Renovation

During a bathroom renovation where may you encounter Asbestos Containing Materials (ACM)?

Commonly in the wall and ceiling linings of bathrooms built or renovated before 1990

Asbestos is no longer used in building materials so it will not be found onsite

Commonly in the wall and ceiling linings of bathrooms built or renovated before 1990 but only if identified by a sticker saying ‘Warning asbestos'

Only ever if the wall lining has a dimpled finish to the inside of the sheets

When you are applying waterproofing to an internal wet area, how would you check the moisture levels in a substrate prior to membrane installation and what process would you engage?

Use an electronic moisture meter

Use a piece of rubber mat over an area and leave for one hour. Check the underside of the mat for condensation or check the substrate surface for colour change or moisture

If not sure prime with hydro based epoxy negative pressure membrane

Any of the above

When waterproofing an internal wet area, what is the purpose of a bond breaker?

Bond breakers improve membrane adhesion in corners and this is required due to high movement in these areas

A bond breaker serves the same purpose of joint sealant

A bond breaker is not required if a surface is suitable primed as this ensures adequate adhesion of the membrane

Bond breakers allow a waterproofing membrane to stretch, rather than snap which would result in membrane failure

Interior waterproofing membranes should meet the following requirement.

The recommendations of a licenced builder

Manufacturer recommendations regardless of the requirements of AS3740-2010 “Waterproofing Bathrooms”

The specific requirements of the client

AS3740-2010 “Waterproofing Bathrooms”

What is the most appropriate fixing method to fix a kitchen cabinet to a plasterboard lined wall?

Use toggle type fixings as these do not need to be fixed through the wall studs

Use a nail gun ensuring the nail penetrates the wall studs

A commercial grade contact adhesive is all that is required

Use screws of an appropriate length ensuring the screw penetrates the wall studs

What would you consider to be the best method of joining sections of laminate Kitchen bench top?

Apply glue to the joins and use bench joiner bolts to draw the sections together

Always use an epoxy adhesive

Butt the join together and seal with Silicone

Use dowel joins

What are the reasons for determining an appropriate grid pattern prior to laying wall or floor tiles?

If the grout colour is similar in colour to the tiles this is not important as the set out will be less noticeable

This is only required on small jobs where set out is more noticeable

Only do this if specified by the builder / client

A properly determined grid pattern ensures a symmetrical and balanced job which is pleasing in appearance and also minimises waste

According to AS3740-2010, what is the minimum fall recommended for a shower floor?

1:1

1:120

1:60

1:80

When grouting the internal corners between two walls or the internal corner where a wall and floor meet you must –

Only apply the grout by a rubber squeegee to ensure sufficient grout fills the join

Only use a pre mixed grout

Always add a grout additive as this makes it more flexible can resist the movement of the building that is caused by expansion and contraction

Never apply grout to these joins as expansion and contraction movement will cause the grout to crack and fall out, silicone should be used

10.

Why would a semi-gloss, satin or low sheen finish be a better choice than a flat finish for bathroom ceiling and wall areas?

There is no advantage with using a semi- gloss, satin or low sheen finish

Semi- gloss, satin and low sheen low sheen finishes are more environmentally friendly

Semi- gloss, satin and low sheen finishes are more resistant to mould growth and are easier to clean

Semi- gloss, satin and low sheen Low coatings are usually cheaper than flat finishes

Technical Industry Questions – KBLR Kitchen, Bathroom and Laundry Renovation

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Technical Industry Questions – KBLR Kitchen, Bathroom and Laundry Renovation

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