Detailed Drawing of Timber Flat Roof
|
Roof surfaces which are pitched at 10 degrees or less are classified as flat roofs.
Flat roofs are often avoided as they are prone to leakage and also require a high level of specialist skill to install.
The ceiling joists are used as the platform for the roof coverings. The fall of the roof is achieved by using firring pieces, with a fall of 1 in 40.
The flat roof shown above shows Warm Deck Roof Construction.
In this type of construction the insulation is placed below the waterproof covering and on top of the roof deck and vapour barrier.
This ensures that the deck holds a warm temperature during the winter.
Flat roofs are often avoided as they are prone to leakage and also require a high level of specialist skill to install.
The ceiling joists are used as the platform for the roof coverings. The fall of the roof is achieved by using firring pieces, with a fall of 1 in 40.
The flat roof shown above shows Warm Deck Roof Construction.
In this type of construction the insulation is placed below the waterproof covering and on top of the roof deck and vapour barrier.
This ensures that the deck holds a warm temperature during the winter.
The abutment detail of a flat roof is vital in order to prevent moisture penetration.
Similar to the abutment of a lean-to-roof, Lead flashing is chased into the external block, allowing it to overlap the lead upstand coming from the tiles.
Stepped DPC across the cavity ensures that any moisture that penetrates the external block will not travel down the cavity.
A tilting fillet is installed to prevent the turn of the lead cracking with time.
Similar to the abutment of a lean-to-roof, Lead flashing is chased into the external block, allowing it to overlap the lead upstand coming from the tiles.
Stepped DPC across the cavity ensures that any moisture that penetrates the external block will not travel down the cavity.
A tilting fillet is installed to prevent the turn of the lead cracking with time.
Video of a Timber Flat Roof Detail Drawing
This video shows the most effective approach for drafting the drawing of a flat roof detail. Note: Labeling and material symbols also need to be included. |
|