Construction Technology Flashcards
(10 cards)
What are the benefits of a steeper pitched on a Scottish slated roof?
A steeper pitch will be less prone to allow wind driven rain or snow to penetrate into the roof space and will move water quickly down the roof.
Why are hips or valleys more vulnerable to the elements?
The actual angle of a hip or valley is less than that of the main roof.
What are the benefits of a ‘penny gap’ on a Scottish slated roof?
This gap accommodates for expansion and contraction and is a good source of ventilation.
How are Scottish slates fixed?
By a single nail fixing at the head of the nails, approximately 1 inch from the head
What is common practice in Scottish slating to keep slates in place?
Cheek nailing every third course.
What are the characteristics of a Scottish slated roof.
The use of slates in a variety of lengths and widths, laid in a diminishing courses.
What are large Scottish slates commonly known as?
Duchesses and Countesses
What tool do Scottish slaters use to size slates?
Pin rule or gauge stick
How are pin rules numbered?
In half inch thick intervals
In Scottish slating what is the most common benchmark on a pin rule?
11 inches as a benchmark. An 11 inch slate is a size eleven thereafter size increases or decreases by half an inch at a time .
