Building Substrates

1. Level 1 Diploma in Painting and Decorating
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Building substrates
Unit 117: Preparing surfaces for decoration

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What are building substrates?
They can be made of:
• Timber
• Metal
• Sheet materials
• Brick and blockwork
And are the most common materials that are decorated.

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Timber surfaces
Common wood types
Home Gallery Stores

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Explain the difference
Porous and non-porous surfaces
Can you identify which is which?

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Metal surface
Non-ferrous metals and ferrous metals

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Sheet materials
What are sheet materials?
• Plasterboard
• Hardboard
• Plywood
• Chipboard
• MDF

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Block and brickwork
Types of block and brickwork

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Building processes
First fixing
This type of work – such as roofing, windows and staircases – is done
before plastering takes place.
Second fixing
This type of work includes skirting boards, door frames, dado and
picture rails, and fitting kitchens and doors. This is done once the walls
and ceilings have been plastered.

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Any questions?