benmc
Established Member
Hi All
I currently planning a garage comversion and I am considering doing the work myself rather than getting builders in.
Here are the plans and details.
I can't see any major issues but I would not be sure what order to do things in?
What do people think?
Regards
ben
CONSTRUCTION NOTES
BUILDING REGULATIONS
1.0 - WALL FINISH TO EXTERNAL PERMIETER WALLS
- Kingspan Kooltherm K18 insulated dry-lining board fixed to 25x50mm timber battens set at maximum 600mm centres fixed to brick wall. Skim finish. To provide a maximum U value of 0.28W/m2K
- The wall dry-lining insulation shall be Kingspan Kooltherm K18. Insulated Dry-lining Board comprising a 12.5mm plasterboard facing bonded to 72.5mm thick CFC/HCFC-free rigid phenoic insulation. Manufactured to the highest standards under quality control systems approved to S EN SIO 9001: 2000/ I.S. ISO 9001:2000 by Kingspan insulation Limited and shall be applied in accordance with the instructions issued by them
- Timbers should run vertically and be wide enough to offer a minimum 20mm support to all four edges of the board. Galvanised clout nails, long enough to allow a minimum 25 mm penetration of the timber, should be placed at 150 mm centres and not less than 10 mm from the edges of the board. They should be driven straight with the heads embedded just below the surface of the board. Care should be taken not to overdrive nails. Timbers should be treated where appropriate
- Contractor should check that external walls have DPC. If there is none it is recommended that a liquid DPC be injected.
2.0 - WALL FINISH TO INTERNAL PERIMETER WALLS
- Fermacell 12.5mm fixed to 25x50mm battens fixed to brick wall. Skim finish.
- Refer to Fermacell The Orange Book for guide to installation
*3.0 - NEW DIVIDING WALL CONSTRUCTION
- Dividing wall construction,12.5mm Fermacell board to each side, fixed to 150x50mm vertical timber stud at maximum 600mm centres with full fill mineral wool insulation batts in cavity (Rockwool Flexi Batts or similar approved) with vapour control layer.
- To provide min 30mins fire protection and 44db sound insulation
- Refer to Fermacell The Orange Book for guide to installation
- All to provide maximum U-Value of 0.23 W/m2K.
4.0 - NEW FLOOR CONSTRUCTION
- Floor construction, install DPM on top of slab with 60mm Celotex laid to achieve 0.25W/m2K
- Vapour control layer to be laid over Celotex and turned up 150mm at room perimeters behind the skirting.
- Chipboard floor finish to be minimum 18mm tongued and grooved floor grade type C4 to BS 5669. Lay chipboard with staggered joints, glued with a woodworking adhesive
- Provide a 10-12mm gap at all perimeters and abutments to allow for expansion
- At all external doorways (for the width of the threshold), a treated timber batten must be used in lieu of the insulation boards
- Use Celotex T-Break TB3000 boards as upstands to fit around floor perimeters to eliminate thermal bridging at screed edges
- Timber hardwood floor finish to clients specification and approval (approx 20mm)
- Total floor build up 100mm to match FFL of adjoining kitchen
* 5.0 - NEW CEILING CONSTRUCTION INSULATION AT CEILING LEVEL
- Ceiling construction, 12.5mm Fermacell nailed or screwed to 63x200mm grade C16 timber at 400 c/c. Fixed to brick wall with face fixing hangers 4no hilti HIT-HY injection anchor with HIT-AN/HIT-IG on each support
- Insulation cross layered (between and over ceiling joists) 200mm full fill Rockwool mineral fibre insulation between joists
- 150mm cross battening to joists filled with 150mm Rockwool mineral fibre insulation
- 18mm floor board nailed or screwed to top to provide area for storage
- All to provide maximum U-Value of 0.16 W/m2K
- At eaves use 70mm Rockwool mineral fibre insulation, ensure insulation meets wall insulation
- Ensure use of proprietary cross flow ventilator or ensure 25mm (min) air gap at eaves
- Ensure there are soffit vents, or alternatively drill holes in barge board and cover with insect mesh to provide equivalent of 10mm continuous ventilation gap
I currently planning a garage comversion and I am considering doing the work myself rather than getting builders in.
Here are the plans and details.
I can't see any major issues but I would not be sure what order to do things in?
What do people think?
Regards
ben
CONSTRUCTION NOTES
BUILDING REGULATIONS
1.0 - WALL FINISH TO EXTERNAL PERMIETER WALLS
- Kingspan Kooltherm K18 insulated dry-lining board fixed to 25x50mm timber battens set at maximum 600mm centres fixed to brick wall. Skim finish. To provide a maximum U value of 0.28W/m2K
- The wall dry-lining insulation shall be Kingspan Kooltherm K18. Insulated Dry-lining Board comprising a 12.5mm plasterboard facing bonded to 72.5mm thick CFC/HCFC-free rigid phenoic insulation. Manufactured to the highest standards under quality control systems approved to S EN SIO 9001: 2000/ I.S. ISO 9001:2000 by Kingspan insulation Limited and shall be applied in accordance with the instructions issued by them
- Timbers should run vertically and be wide enough to offer a minimum 20mm support to all four edges of the board. Galvanised clout nails, long enough to allow a minimum 25 mm penetration of the timber, should be placed at 150 mm centres and not less than 10 mm from the edges of the board. They should be driven straight with the heads embedded just below the surface of the board. Care should be taken not to overdrive nails. Timbers should be treated where appropriate
- Contractor should check that external walls have DPC. If there is none it is recommended that a liquid DPC be injected.
2.0 - WALL FINISH TO INTERNAL PERIMETER WALLS
- Fermacell 12.5mm fixed to 25x50mm battens fixed to brick wall. Skim finish.
- Refer to Fermacell The Orange Book for guide to installation
*3.0 - NEW DIVIDING WALL CONSTRUCTION
- Dividing wall construction,12.5mm Fermacell board to each side, fixed to 150x50mm vertical timber stud at maximum 600mm centres with full fill mineral wool insulation batts in cavity (Rockwool Flexi Batts or similar approved) with vapour control layer.
- To provide min 30mins fire protection and 44db sound insulation
- Refer to Fermacell The Orange Book for guide to installation
- All to provide maximum U-Value of 0.23 W/m2K.
4.0 - NEW FLOOR CONSTRUCTION
- Floor construction, install DPM on top of slab with 60mm Celotex laid to achieve 0.25W/m2K
- Vapour control layer to be laid over Celotex and turned up 150mm at room perimeters behind the skirting.
- Chipboard floor finish to be minimum 18mm tongued and grooved floor grade type C4 to BS 5669. Lay chipboard with staggered joints, glued with a woodworking adhesive
- Provide a 10-12mm gap at all perimeters and abutments to allow for expansion
- At all external doorways (for the width of the threshold), a treated timber batten must be used in lieu of the insulation boards
- Use Celotex T-Break TB3000 boards as upstands to fit around floor perimeters to eliminate thermal bridging at screed edges
- Timber hardwood floor finish to clients specification and approval (approx 20mm)
- Total floor build up 100mm to match FFL of adjoining kitchen
* 5.0 - NEW CEILING CONSTRUCTION INSULATION AT CEILING LEVEL
- Ceiling construction, 12.5mm Fermacell nailed or screwed to 63x200mm grade C16 timber at 400 c/c. Fixed to brick wall with face fixing hangers 4no hilti HIT-HY injection anchor with HIT-AN/HIT-IG on each support
- Insulation cross layered (between and over ceiling joists) 200mm full fill Rockwool mineral fibre insulation between joists
- 150mm cross battening to joists filled with 150mm Rockwool mineral fibre insulation
- 18mm floor board nailed or screwed to top to provide area for storage
- All to provide maximum U-Value of 0.16 W/m2K
- At eaves use 70mm Rockwool mineral fibre insulation, ensure insulation meets wall insulation
- Ensure use of proprietary cross flow ventilator or ensure 25mm (min) air gap at eaves
- Ensure there are soffit vents, or alternatively drill holes in barge board and cover with insect mesh to provide equivalent of 10mm continuous ventilation gap