ATF MMC Specialise in Timber Frame Windows, Hybrid Homes, Log Homes, Leisure Pods, Field Range, Restoration, Room in a Roof, Floor Joists, Glulam Beams, Trussed Rafters and more

Tel: 0161 654 0031
sales@atfmmc.co.uk

Timber Frame is the preferred method of construction worldwide and over 70% of people in the developed world live in timber frame housing. In the USA, Scandinavia and Canada it accounts for 90% of low-rise buildings.

Timber Frame Explained

TIMBER FRAME BUILDING
There is a great deal of confusion concerning this modern method of construction and in many instances, Wooden Houses, Log Cabins and Garden Buildings are mistaken for Timber Frame - they are not.

WHAT IS TIMBER FRAME?
Timber Frame Construction is exactly what it implies. It is the "bones" of a building. Just like the human skeleton, it is extremely strong and supports everything inside it and has an outside skin, usually brick, stone or render. The timber frame is an engineered solution and replaces the almost redundant internal load-bearing block wall.

HOW DO YOU KNOW IF A BUILDING IS TIMBER FRAME?
The short answer is "You don't". Timber Frame buildings look exactly like any other except that they have many, many more advantages over old traditional methods of construction. (Benefits are explained later). Timber Frame can be anything from a small home extension to a 7 floor high block of apartments or a school building to a 300-bedroom hotel. In fact ANY building can be constructed using this technology.

ARE THE HOUSES ALL STANDARD DESIGNS?
No, none of them are, except the Hybrid range, (and we will alter them to suit our clients needs!) each property is bespoke and designed to the client's own specifications. On receipt of planning drawings we then undertake engineering calculations, and each individual project is re-designed taking into account many different factors including site location, wind speeds over a long period, snow-loadings, building heights, elevations and geographic information and so forth. Using these complicated formulae we then produce drawings for manufacture and site erecting, which is all part of the service we provide.


Apartments


ATF MMC Specialise in Timber Frame Windows, Hybrid Homes, Log Homes, Leisure Pods, Field Range, Restoration, Room in a Roof, Floor Joists, Glulam Beams, Trussed Rafters and more

Hotel


ATF MMC Specialise in Timber Frame Windows, Hybrid Homes, Log Homes, Leisure Pods, Field Range, Restoration, Room in a Roof, Floor Joists, Glulam Beams, Trussed Rafters and more

Mews Houses


ATF MMC Specialise in Timber Frame Windows, Hybrid Homes, Log Homes, Leisure Pods, Field Range, Restoration, Room in a Roof, Floor Joists, Glulam Beams, Trussed Rafters and more

Town Houses


ATF MMC Specialise in Timber Frame Windows, Hybrid Homes, Log Homes, Leisure Pods, Field Range, Restoration, Room in a Roof, Floor Joists, Glulam Beams, Trussed Rafters and more

Detached House


ATF MMC Specialise in Timber Frame Windows, Hybrid Homes, Log Homes, Leisure Pods, Field Range, Restoration, Room in a Roof, Floor Joists, Glulam Beams, Trussed Rafters and more

LOG Buildings


ATF MMC Specialise in Timber Frame Windows, Hybrid Homes, Log Homes, Leisure Pods, Field Range, Restoration, Room in a Roof, Floor Joists, Glulam Beams, Trussed Rafters and more

Step By Step

  1. We receive an enquiry from you for your or your clients project. All we require at this stage is basic requirements, for instance m2 of total proposed property, how many floors and roof shape. If you have any drawings or sketches - the entire better. Once we have this information, we issue a BUDGET QUOTE and a KIT DESCRIPTION
  2. If you wish to pursue the quote, we work with you until we have basic finished scale or dimensioned drawings of your project
  3. Our engineers take the drawings and produce a set of calculations that take into account several different facts and figures. For instance the exact location of the subject property is researched via channels at our disposal and then extreme conditions are calculated along with "stresses and strains" the building will endure in the course of its life. Once the calculations and instructions are issued, the job passes on to:
  4. The design department, who generate drawings of all the components required and what goes where, using the information provided in the engineers documents.
  5. The completed sets of drawings then go into the factory, ready for the kit to be manufactured. A soleplate drawing is sent to the client (or his agent) for approval and acceptance. On return of this document, manufacture commences.
  6. A copy of the drawings and erecting specifications are supplied to the site erecting team and we deliver the kit to site and commence erecting immediately.
  7. The erecting period obviously differs depending on the size of the property concerned, but an average detached 4-bed house would take around 6 days
  8. Our engineer and the client carry out a final inspection or his representative then the roofer and window installer complete their part of the project.
  9. Within a couple of weeks the internal works can begin, the electrician and plumber being the first. They can first-fix all pipes and cables very quickly indeed as all the walls, eco-joists and roof trusses are open at this stage, and then insulation and boarding can begin.

A Typical Kit Would Consist Of:

  • Engineering and Design
  • Manufacture
  • 140mmx39mm Soleplates
  • 140mmx39mm Exterior Walls with 9mm OSB stiffener overlaid with breather membrane
  • 140mm or 89mm x 39mm Internal Room Partition Walls
  • Separating Floors as Engineered Eco-joists and V313 flooring
  • Engineered Roof Trusses
  • Glulam Beams if specified
  • Delivery to site
  • Erecting

A Breakdown of Construction

  • Groundworks
  • Timber Frame
  • Roof
  • Windows & Doors
  • Insulation & Plasterboard
  • Plastering
  • Plumbing
  • Electrics
  • Joinery
  • Kitchen
  • Tiling - Painting
  • Externals

The Groundwork consists of excavating drain runs, service trenches and foundations. Next the drains/services are laid but not connected. Next, strip foundation is concreted and the Bricklayer will bring the load-bearing brick/block walls to DPC. All is then backfilled, and the site levelled.

Once the slab is complete and an allowance has been made for the services/utilities in and out, the timber frame is erected by ATFMMC. This consists of External Walls, Internal Walls, 1st floor joists and decking, plus roof trusses.

Next we call for the roofer to complete the roof-scape.

Then the External doors and the windows go in, we now have a sealed envelope, so internal works can commence, irrespective of what may be happening outside (bad weather - lack of bricks, Building Inspector can't make it, or whatever reason)

On completion of this stage, the Electrician & Plumber are called in to 1st Fix. This means all the pipe work and cables which will carry power and water are run through eco-joists and into the stud wall voids. Nothing is connected at this stage.

Immediately the joiner moves in to 1st fix Stairs, Door Frames, and Window Linings. May install floating floor on Slab. External Fascias & Soffits.

Once complete, the plasterer moves in to insulate between the studs and joists. He then boards the ceilings and walls internally and skims the boards or prepares for a dry-line finish, which accepts a paint coat.

The Bricklayer by this time will have commenced on the outside skin, or if this is to be rendered, the Plasterer moves from inside on completion of the plastering, to commence render on exterior.

Joiner returns to final fix doors, skirts and architraves, along with the Tiler. The Kitchen Fitter will appear at this stage.

Electrician returns to do final fix - lights and power sockets, wire up any machinery make connections.

Plumber returns to do final fix - install and connect all White ware, Heating, Soils & Wastes. Makes mains connections.

On completion of the above, the Painters start. Any externals quoted for e.g. Paths, Fences, Landscaping. Last is snagging and final inspections, prior to handover.

Timber Information

All timber used by our company MUST be of a recognized type and origin. It also must pass certain test rules and treatments:

  • The only timber used by us is the type classified as Spruce/Pine/Fir. All supplies are from Northern Europe, Russia or Canada and all MUST come from replenish able sources, under a chain of custody suppliers agreement. A "PEFC - TRADA" certificate must be in force at the time of supply.
  • As subscribers to the system we contribute to growing 252 million m3 of wood SURPLUS to requirements (after harvest) EACH YEAR. This means that we add a forest in Northern Europe the area of Cyprus EVERY YEAR, besides replacing all the harvested timber.
  • The wood is sent to mills to be converted to Canadian Lumber Standards (CLS) this is planed all round and thicknessed to ensure close tolerances can be achieved.
  • All the planks are then stress tested to ensure that they will meet the stringent conditions laid down by various European codes.
  • The planks are then Vac-Vac Treated as follows:
    • Planks are placed into a treatment vessel
    • A vacuum pulls the air out of the wood and the vesse
    • Osmose preserve is then flooded into the vessel
    • The vessel is then pressurized, forcing the preservation fluid into the timber.
    • The fluids are then removed, and a final vacuum is applied sucking out all excess fluid
    • The timber has now been treated against Wood boring Insect and Fungal Decay
  • The fluid used is a water-borne borate base which is harmless to any wildlife and is environmentally accepted globally.
  • The last operation is KILN DRYING. All timbers must be kiln dried to max 19% moisture content, to avoid any problems post-construction.

All Timber Frame Must Meet

  • U.K. Building Regulations
  • Trada
  • British Standard Institute (BS5268)
  • Robust Detail
  • SAP Energy Rating
  • NHBC
  • Etag 007
  • Euro Code 5
  • European Technical Approvals (ETAs)
  • CPD: EN 13986

Preserving Timber In Timber Frame Buildings

There are basically two types of preservatives used in our industry known simply as "In Ground" or "Above Ground". In both cases the timber should go through a Vac-Vac treatment and this is what happens:

  • Milled planks of timber are placed in a treatment vessel.
  • A vacuum pulls the air out of the wood and the vessel
  • Osmose preservative is then flooded into the vessel
  • The vessel is then pressurized, forcing the preservation fluid into the timber
  • The preservative fluid is removed and a final vacuum is applied sucking out all excess fluid.
  • The timber has now been Vacuum impregnated

In Ground Applications: A copper base is used in preserving fluids for in ground external applications. Alkaline copper quaternary systems have been in use over 10 years now all over the world, very successfully on Fencing, Timber Decking, Landscaping and Playground Equipment.

Above Ground:) A borate base is used mainly, and protects against: Wood boring Insect and Fungal Decay. Is used on both internal and weather protected external timbers above ground.

Note: CAA (chromate copper arsenate) is now illegal in most countries because of its carcinogenic implications. All formulations which have replaced CAA MUST meet full European Standards BS8417

Attack Resistant to:

  • Ground Termites
  • Formosan Termites
  • Carpenter Ants
  • Woodboring Insects ( Inc. Anobium and Xestobium)

After treatment ALL timbers must be kiln-dried (KDAT) to a maximum moisture content of:

  • 19% Timber and 18% Board/Sheet materials.

Typical Timbers to be used:

  • Southern Yellow Pine
  • Douglas Fir
  • Hem-Fir
  • Spruce-Pine-Fir (S-P-F) is mainly our classification in Timber Frames)

Standard: Known as AWPA - C9 Plywood - C31 Above ground ooc (out of contact with) P5 Environmental compliance


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