6. know about construction of roofs

​6. know about construction of roofs

​Gable Ended Roof

​How would you describe a Gable ended Roof?

Perhaps it is a triangle or triangular part of the building where the roof meets the walling?

Open Ended

How would you describe a Gabled Roof?

Hotspot

Point to the Gable on this roof.

​This is a Hipped Roof. You can see that the "Hip" is sloping or leaning back at an angle. This area of the roof is the HIP

You could think of a Hip or Hipped roof as "Sloping on all sides"

Hotspot

Point to the Hip on this Roof.

Open Ended

How would you describe a Hipped Roof?

​This is a

"Lean to Roof"

This is because the Roof leans in to the building.

The Roof leans against the building at an angle.

This allows water to run off into the guttering.

Hotspot

Point to the Lean To Roof in the image.

Open Ended

How would you describe a "Lean To Roof? "

​This is called a "FLAT ROOF"

This is because the roof is almost flat.

It is not actually FLAT
otherwise water would not run off in to the guttering.

Usually the angle that the roof slopes is around
10 degrees.

Hotspot

Point to the Flat Roof and the Guttering.

Open Ended

How would you describe a Flat Roof?

​This drawing shows how Wall Plates are fixed to the Blockwork on walls.

***You should make a quick sketch or take a photo of this now as you will nee it later***


The Roof Truss rests on the Wall Plate.




The Wall Plate is bedded on Mortar and held in place with a Galvanised Strap (Tie Down Straps)

​Ceiling Joist

​Rafter

Hotspot

This drawing shows how Wall Plates are fixed to the Blockwork on walls.

The Roof Truss rests on the Wall Plate.

The Wall Plate is bedded on Mortar and held in place with a Galvanised Strap (Tie Down Straps)

Point to the "WALL PLATE"

Hotspot

This drawing shows how Wall Plates are fixed to the Blockwork on walls.

The Roof Truss rests on the Wall Plate.

The Wall Plate is bedded on Mortar and held in place with a Galvanised Strap (Tie Down Straps)

Point to the "RAFTER"

Hotspot

This drawing shows how Wall Plates are fixed to the Blockwork on walls.

The Roof Truss rests on the Wall Plate.

The Wall Plate is bedded on Mortar and held in place with a Galvanised Strap (Tie Down Straps)

Point to the "Tie Down Straps or Galvanised Straps"

​This drawing shows: Ceiling Joists.

Ceiling Joist is fixed to the Rafter and forms the part of the Roof Truss.

The Roof Truss is fixed to the Wall Plate using a Truss Clip.

The Wall plate sits on Mortar and is bedded on to the Blockwork.

The Wall Plate is held in place with Galavnised Straps (Tie Down Straps)

You Really need to Sketch or take a photo of this drawing, you will need it later !

Labelling

Please Label the various Roofing Components in the Drawing.

Drag labels to their correct position on the image

Rafter

Blockwork

Wall Plate

External Brickwork

Ceiling Joist

Truss Clip

​Different Types of Roof.




Take time to look ate this drawing





You really need to sketch these or take a photo you will definately need it later !

Labelling

Label the different roofs.

Drag labels to their correct position on the image

Hipped Roof

Gable Ended Roof

Lean to Roof

Cross Gable Roof

Mono Pitch Roof

Mansard Roof

​This drawing shows a Trussed Rafter. Here we can see additional components like the Ridge, Purlins, Binders, Strut, Hanger, Ceiling Joist, Common rafter. Your going to have to label these on the next slide so ** How will you remember all of these?

I describe trusses like this

This is a trussed rafter.

Trussed Rafters are pre-made and delivered to site ready to use.

They are often the quickest way to construct a roof.

Open Ended

Before you label this drawing on the next slide: How would you describe a Roof Truss?

Labelling

Drag and Drop the Tags, Labeling the Drawing.

Drag labels to their correct position on the image

Strut

Hanger

Purlin

Wall Plate

Ridge

Common Rafter

Ceiling Joist

Hanger

Multiple Choice

Which one of these is a Pitch Roof with a Gable End?

Multiple Choice

Which one of these is a Mansard Roof?

Multiple Choice

Which one of these is a Mono Pitch Roof?

Multiple Choice

Which one of these is a Hip Roof?

Multiple Choice

Which one of these is a Lean To Roof?

Multiple Choice

Which one of these is a Cross Gable Roof?

Multiple Choice

Select the Wall Plate.

• A

• B

• C

• D

Multiple Choice

Select the Tie Down or Galvanised Restraint Straps.

• A

• B

• C

• D

Multiple Choice

Select the Rafter.

• A

• B

• C

• D

Multiple Choice

Select the Ceiling Joist.

• A

• B

• C

• D

Multiple Choice

Look at the Drawing and Name A

• Ridge Board

• Ceiling Joist

• Rafter

• Wall Plate

Multiple Choice

Look at the Drawing and Name B

• Ridge Board

• Ceiling Joist

• Rafter

• Strut

Multiple Choice

Look at the Drawing and Name H

• Ridge Board

• Ceiling Joist

• Rafter

• Wall Plate

Multiple Choice

Look at the Drawing and Name F

• Ridge Board

• Ceiling Joist

• Rafter

• Wall Plate

Multiple Choice

Look at the Drawing and Name C

• Ridge Board

• Ceiling Joist

• Rafter

• Purlin

Multiple Choice

Look at the Drawing and Name I

• Ridge Board

• Ceiling Joist

• Rafter

• Binders

​Lean to Pitched Roof
look at what goes on top of the roof frame once we have constructed it.

This is how we protect the House from weather.

Draw

Draw a Lean To Roof.