DOORS & WINDOWS - Building Materials short notes and previous year questions

DOORS 

• Normal height : 2 m 

• Residential building width 

• Interior : 0.8 

• Exterior : 1 - 1.1 

• Average min width : 0.75 

• Public building : 1.2 

DESIGN

• Keeping W constant H = W + ( 1.1 - 1.2 ) 

• Keeping H constant W = H x ( 0.4 - 0.6 ) 

DESIGNATION  

8D20 : 800 mm door 2000 mm 

WINDOWS 

• 30 m3 volume : 1 m3 window 

• In residential building area of window : 15 % floor area, 10 % glazed 

• In public building area of window : 20 % 

• Sill height : 70 - 80 cm Design 

DESIGN

• W = 1/8 ( height + width ) 

DESIGNATION

5WT21 : 500mm Window Twin shutter 2100 mm

• Freeze rail : any rail between mid & top or bottom 

• Rebate : cutting to accommodate shutter

TYPES OF DOORS AND WINDOWS 

PREVIOUS YEAR QUESTIONS BASED ON DOORS & WINDOWS