Modern timber frame buildings are designed by structural engineers utilising computerised systems. The actual timber frame is manufactured in controlled factory conditions resulting in a highly accurate engineered product. The design allows for a layer of insulation which produces exceptional thermal efficiency.
The external and internal appearances of a Cygnum timber frame building are generally no different to those of a conventional masonry one. However, in the case of timber frame, the inner leaf of the block wall is replaced with the factory produced frame. The frame bears all the structural loading of the house and the external finish (which can be brick, block, stone or timber) serves purely d ecorative and weathering purposes.
External Wall Cross Section
A. Inner Lining of Plasterboard
Provides a clean smooth finished surface on the inside face of the wall. Also provides fire resistance to the structure. Optional upgrades for extra sound and impact resistance are available.
B. Service Cavity
An optional item that creates a void for easy fitting of services (cables and plumbing pipes etc.) behind the plasterboard.
C. Vapour Barrier
Prevents moisture created in your living space entering the timber frame area.
D. Stainless Steel Wall Tie
Fixed to the external side of your timber frame and is connected to the external leaf (of block or brick work) creating a fixed tie between the two leafs.
E. Structural Timber Frame 140mm stud or Cygnum Thermal 200
Kiln dried, stress graded and pressure treated timber from Scandinavian forests where timber is slow growing. This is the engineered structural frame that provides the structural fabric of the building.
F. Insulation
Generally glass wool, non-combustible quilt insulation. Provides excellent thermal insulation to the building. Other options include rigid polyurethane (can be factory fitted) recycled paper (blown in on site) and sheep's wool.
G. Sheeting Board
Water resistant, formaldehyde free 9mm OSB3. Provides the timber frame structure with racking resistance.
H. Waterproof Breather Membrane
This is a "goretex" like material that allows moisture from inside the frame dissipate into the cavity but prevents water from the outside entering the frame.
I. 50 mm clear cavity
Provides a clear space for air circulation, which allows for ventilation between the timber frame and the external leaf.
J. Outer Cladding
Brick, Block, Stone, Timber...
Internal Wall Cross Section
A & D. Plasterboard Lining
Provides a clean smooth finished surface on the inside face of the wall. Also provides fire resistance to the structure.
B. Structural timber frame 89mm stud
Kiln dried, stress graded and pressure treated timber from Scandinavian forests where timber is slow growing. This is the engineered structural frame that provides the structural fabric of the building.
C. Acoustic Insulation.
High density insulation with excellent sound insulation qualities.
Mid Floor Cross Section
A. Decking
Houses typically 22mm moisture resistant peel clean chipboard or plywood, Apartments typically 15mm or 18mm OSB providing a sound sub-structure for carpets to houses or other flooring finishes being acoustic floors to Apartments.
B. Joists
Typically engineered I beams either with a OSB or metal webs, flanges of beams in laminated plywood or softwood. Traditional kiln dried 220mm softwood joists are also available.
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