ROOF ASSEMBLY CALCULATION - Knysna · accordance with SANS 10160: Loading Code and SANS 10163: The Structural Use of Timber. Roof construction to conform to Part 1 Schedule 1 Table

Page 1

GENERAL NOTES

All building work to be in accordance with National Building Regulations SANS 10400, SANS 204 as well as by-laws and requirements of Local Authority.All levels, heights and dimensions to be verified on site.Errors, discrepancies or omissions from these drawings must be reported to designer immediately.These drawings are not to be scaled and figured dimensions must be utilised.FOUNDATIONSAll vegetable matter to be removed from within perimeter of building.Foundations taken down to depth in accordance with appointed Engineer's design.Concrete to be 10 MPa. Minimum depth 600mm. Size determined by Engineer.All soil compaction to Engineer's specification.Consolidated fill to be treated with ant poison.WALLSAs per Part K of SANS 10400.Walls in accordance with Schedule 1 Table 2 and freestanding walls Schedule 1 Table 5 of NBR.Brickforce minimum every 6th course.No DPC to freestanding walls.Weepholes and expansion joints as necessary to freestanding walls.RC lintels over all openings.Painting and preparation to comply with manufacturer's specifications.DAMP PROOFINGDPC to be a minimum of 150mm above ground level.DPM to be a minimum of 0.250mm thick.DPM to be on compacted fill.DPC to be provided to all window cills.STRUCTURERC structure to be in accordance with appointed Structural Engineer's details.Monolithic components to be constructed in accordance with SABS 0100 or SABS 0145.CHIMNEYS & FIREPLACEChimneys and fireplace in accordance with Part V of NBR.DRAINAGEAll drainage works to be in accordance with Municipality drainage requirements.100mm diameter UPVC sewer pipe drain with a minimum fall of 1:60.100mm diameter OVP at head of drain.All drainage chased into walls to allow access to bends.Lintels to be built over drainage passing through walls and drainage to be encased in concrete sleeve where it passes under building. Foundations to be reinforced where passing over WP.IE's to be provided at maximum 24 metres centre to centre.Gullies to have a minimum of 150mm upstand all around.No bends or junctions under building.1 metre concrete or brick apron around building where gutters are not provided.Provide rodding eyes at head of drain, to all changes of direction and at a maximum of 25m intervals.Provide inspection eyes at all junctions of drain. Inspection eyes to have marked covers at ground level.WP to bath, shower and sinks to be minimum 40mm diameter. WP to WHB and bidets to be minimum of 32mm diameter.All waste pipes to have 65mm reseal traps or vented traps to waste fittings 3m or longer.All showers to have brass traps.450X450mm FC access panel to all drainage ducts.All soil fittings with vertical discharge greater than 1220mm to have anti syphon vent pipes.All piping from basins chased into brickwork to be inspected and approved by Council before covering up.ROOFRoof trusses manufactured in accordance with Part L Roofs of SANS 10400 or designed by Engineer in accordance with SANS 10160: Loading Code and SANS 10163: The Structural Use of Timber.Roof construction to conform to Part 1 Schedule 1 Table 1 of NBR with approved underlay.GS strap as anchorage to all roof trusses and wall plates.GS flashing as necessary.All waterproofing to manufacturer's specification.STAIRCASES & BALUSTRADESAs per Part M of SANS 10400 and to comply to SABS requirements.Staircases to have treads minimum 250mm and risers maximum 200mm.Balustrades minimum 1000mm height and openings max 100mm.TIMBERAll timber in accordance with SANS 0163.ALUMINIUM DOORS & WINDOWSIn accordance with AAAMSA and SABS rules and requlations.GEYSERGeyser to SABS 0254All exposed hot water piping to be insulated with min R-value of 1.0GLAZINGAs per Part N of SANS 10400 and to comply to SABS requirements.6.5mm PVC laminated safety glass to be used from 0 to +900mm affl.POOL SAFETYPool Safety in accordance with SABS 1390 and Section 4 of NBR, including self closing and locking gate.TILINGAluminium trim to all tile edging.PAVINGPaving apron of 1m wide to perimeter of building where gutters are not specified .

HOUSEWORK

03.04385

DU

Elect Plan, H&C Water Layout and SANSNotes

CELL: 082 457 2785

19 TUSCANY GROVECAMPBELL ROAD, CRAIGAVONGAUTENG

PO B

OX

2324

FOU

RWAY

S, S

AND

TON

2055

LESLIE & LINDA BOSMA

ERF 8639 EASTFORD DOWNS,KNYSNA

diet

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hous

ewor

k.jo

burg

HOT WATER SUPPLY

GENERALIn order to comply with functional regulations XA2 Contained in Part XA of the NBR the following guidance is provided: Accordance with Table 2 and 5 of SANS 10252-1:2004.Requirements for water installation in buildings shall be in accordance with SANS 10252-1 and SANS 10254.All hot water service pipes shall be clad with insulation with a min R value in accordance with Table 1.Thermal insulation if any shall be installed in accordance with manufactures instructions.

THERMAL INSULATIONPipes, fittings and components shall when necessary be protected against freezing. The insulation provided shall be appropriate to the min. temperature that can be expected in that geographical area.All exposed pipes to and from the hot water cylinders and central heating system shall be insulated with pipe insulation material with a thermal resistance in accordance with table 10. R value of 1.00 for 15mm pipes.Insulation shall be protected against the effects of weather and sunlight, and be able to withstand the temp. within the piping and achieve the min. total r value given in table 10:Table 10Internal Dia of pipe >80 .......... Min R value< 80 ........................................ 1.00>80 ......................................... 1.5Hot water vessels and tanks shall be insulated with material that achieves a min r value of 2.0. Note: to achieve this value, insulation in addition to the manufacturer’s installed insulation might be required.Insulation on vessels, tanks and piping containing cooling water shall be protected by a vapour barrier on the outside of the insulation.The piping insulation requirements do not apply to space heating water piping located within the space being heated. Where the piping is to provide the heating to that space or encased within a concrete floor slab or in masonry, such piping shall comply with this Part of SANS.Piping to be insulated includes all flow and return cold water supply piping within 1m of the connection for the heating or cooling system and pressure relief piping within 1m of the connection to the heating or cooking system. Where possible the length of pipe runs shall be minimised.After thermal insulation material has been installed, the ingress of moisture into such material shall be prevented. Note that roughness increases the effective surface area of insulation material and consequently, heat losses and moisture increase the thermal conductivity of the material.

HOT WATER SYSTEMS CALCULATIONCalculated as per SANS 10252-1:2004 (hot water system to be endorsed by specialist):

Type of accommodation: Dwelling / House

Daily capacity in litres: 55 - 110 l/day

Number of people per day: 4

Assumed daily water consumption in litres: 440 l/day

Assumed daily hot water consumption in litres: 220 l/day

Assumed annual hot water consumption in litres:80 300 litres Based on daily design occupancy

50% of daily hot water in litres: 110 l/dayProvided by means other than electrical resistance heating

Insulation Requirements

Internal Dia of hot water service pipes: <80

Min R-value 1.0 as per SANS 204

Min R-value for hot water tanks 2.0 Insulation may be required

Hot Water Calculation as per SANS 10252 - 1

Estimated daily demand for hot water: 110 l/day

Capacity: 250 l storage tank

All hot water pipes must be installed with thermal insulation of minimum R-value 1.0

Conclusion: The design complies with the requirements of SANS 10400 -XA-2011 and SANS 10252-1:2004 for hot water calculations

ELECTRICAL NOTES

ELECTRICAL Electrical layout to be checked on site by specialist before any work is put to handAll electrical components and installations to comply with relevant NBR and SANS.All plugs to be @ 350mm (centre line) from FFL unless specified otherwise.All light switches to be @ 1200mm (centre line) from FFL unless specified otherwise.Alarm system by specialist. Design and layout to approval of client.Sound system by specialist. Design and layout to approval of client.All fixtures, fittings and appliances must also be approved by client prior to installation and application.SERVICESAll internal conduits for fibre optics, security or TV to be min Ø 25mm (unless specified larger), fitted with a draw wire, installed with slow bends and with a single / dedicated conduit per point. (No "daisy chaining" or looping of conduits is allowed).2 x Ø25mm conduits to be provided to main TV point from DSTV aerial. (This is where the decoders will be situated / installed).All DSTV conduits to be chased or routed through ceiling voids to pts indicated.Should the TV be mounted at a high level at the main TV point, a Ø32mm conduit must be provided from the low TV point to the higher level point in order to accommodate the HDMI cable.Ensure that electrical plug points are provided at all TV, telephone (for digital phones) and data points.All electrical cabling and data / TV cabling to be installed in separate conduits with min 300mm distance between conduits and should cross at 90° angles where necessary.All internal cabling to be installed by approved and accredited installers.Telkom line to be trenched from boundary to tel points where indicated.

DOOR & WINDOW NOTES

All doors and windows to be in accordance with National Building Regulations SANS 10400, SANS 204 as well as all by-laws and requirements of the Local Authority.All external doors open outward except for main entrance doorsTIMBERAll timber in accordance with SANS 0163.ALUMINIUM DOORS & WINDOWSIn accordance with AAAMSA and SABS rules and requlations.GLAZINGAs per Part N of SANS 10400 and to comply to SABS requirements.GLAZING6.5mm PVC laminated safety glass to be used from 0 to +900mm affl.All external doors open outward except for main entrance doors.All external doors exposed to weather must include a bottom rail to frame.

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Hot waterreturn

15A Waterproof single plug point @ 350 AFFL unlessindicated otherwise.

15A Dedicated single plug point @ 350 AFFL unlessindicated otherwise. [Typically for fridge / freezer orcomputer].

3W LED Low Voltage outdoor garden lights withintegrated transformer.

15A Double plug point @ 350 AFFL unless indicatedotherwise.

15A Waterproof double plug point @ 350 AFFL unlessindicated otherwise.

Isolator switch @ 1200 AFFL unless indicated otherwise[for oven, hob, spa bath, etc].

Geyser point.

3W LED Low Voltage Downlights on track. Positiontransformer where shown [when the transformer isnot integrated into fitting or track].

Heated towel rail electrical point [Isolator].

Telephone point @ 350 AFFL unless indicated otherwise.

2 Tube 1200 fluorescent lamp box fitting.

Internet dedicated point @ 350 AFFL unless indicatedotherwise.

Intercom dedicated point @ 1200 AFFL unless indicatedotherwise.

TV aerial point @ 350 AFFL unless indicated otherwise.Cable to be ducted to aerial and dish position shown.

LED strip lights fitted as continuous bulkheadlighting. 5W/lin.m. Transformer to be hidden.

Speaker point in ceiling unless indicated otherwise.

2” X 4” Drawbox for Audio Controls @ 350 AFFL.

AC wall unit “Artcool” 500 W X 400 H X 100 D. Requiresdrainage into existing WP or to outside wall [to approvalof designer] as well as power.

AC grilles mounted into ceiling or walls as indicated.

CFL 5W GU10 recessed downlight lamp fitting (warmwhite). (Use dimmable lamps where required).

Keypad for Security.

Thermostat / switch for underfloor heating @ 1200 AFFLunless indicated otherwise.

230V dedicated power point.

Passive eye / Sensor for Security.

Switch in a 2 way circuit as shown @ 1200 AFFL unlessindicated otherwise.

Switch @ 1200 AFFL unless indicated otherwise.

230V power point for stock recessed foot light @350 AFFL unless indicated otherwise. 11W CFLlamp. Waterproof where used externally.

230V power point for decorative pendant light fitting.15W CFL lamp.

15A Single plug point @ 350 AFFL unless indicatedotherwise.

Switch with dimmer @ 1200 AFFL unless indicatedotherwise.

3W LED Low Voltage shockproof and waterproofuplighter recessed into floor. Integrated transformer.

ELECTRICAL

3W LED Low Voltage Downlights on cables linked totransformer in position indicated.

230V power point for stock bulkhead wall mountedlight fitting @ 1800 AFFL unless indicated otherwise.15W CFL lamp. Waterproof where used externally.

SEC

AC

AUDIO

TV

COM

I

T

H

G

W

D

W

W

G

TH

2W

D

SERVICES LEGEND

230V power point for stock bulkhead wall mountedlight fitting @ 1800 AFFL unless indicated otherwise.15W CFL lamp. Waterproof where used externally.

11W CFL Downlight

CFL 5W GU10 spotlight lamp fitting (warm white).

*Roof assembly to achieve a min R-Valueof 3.7 as per SANS 204:2011. Roof

structure to comply with part 'L' of SANS10400

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ROOF ASSEMBLY CALCULATION

PITCH 17.5º /CATHEDRAL CEILING / CEMENT TILES

Climate Zone Total required Resistivity (m2K/W) Direction

4 3.7 Up

Outdoor air film (7m/s). (Ref: Table F.3) 0.03

Cement Roof Tile. (Ref: Table F.3) 0.02Sisalation Sheet (Reflective Foil / Emissivity: 0,2 outer - 0,05 inner/ In non-ventilated roof space). (Ref: 4.3.6 Roof Assemblies Table 9)

0.75

Roof air space (non-reflective). (Ref: Table F.3) 0.18

75mm Aerolite Mineral Wool Insulation 1.88

40mm rigid EPS board Insulation 0.82

Indoor air film (still air). (Ref: Table F.3) 0.11

Total R-value is a combination of roof assembly and insulation 3.79

Conclusion: The design complies with the minimum requirements of SANS 10400-XA-2011 & SANS 204

EXTERNAL WALL CALCULATIONParameters Conclusion: The design complies with

the minimum requirements of SANS 10400 -XA-2011

Min Thermal Resistivity R = 0.22Climatic Zone 4

(λ) Thermal Conductivity (w/m²k) (l)Thickness (mm) Resistivity(m2K/W)

External Plaster - 0 0.00Brickwork 0.70 220 0.31Internal Plaster - 15 0.00TOTAL 235 0.31

PL03 Ground Reflected Ceiling and Electrical 1:100 PL04 First Reflected Ceiling and Elect 1:100

PL05 Ground Hot & Cold Water Layout 1:100 PL06 First Hot & Cold Water Layout 1:100

W-10 Truss Roof Detail 1:10

As Indicated

EASTFORD DOWNS GUIDELINESIt is noted that these plans have been prepared in

accordance with the Building & LandscapingGuidelines for Eastford Downs.

All building activity is bound to comply to the samerules as defined in the indicated document and all

contractors and sub-contractors must ensure that theyare familiar with the conditions described within theBuilding Code of Conduct before commencing work.

B

2017.09.05

J. TRUDASACAP REGISTRATION: T0321

LIGHTING ENERGY CONSUMPTION SCHEDULEDESCRIPTION QUANTITY TOTAL WATTS

CFL 5W GU10 recessed downlight lamp fitting (warm white). (Use dimmable lamps where required). 33 off 165 W

Pendant light compact fluorescent energy saving lamp 15W 10 off 150 W

Wall Mounted Light compact fluorescent energy saving lamp 15W 8 off 120 W

TOTAL435 W/1000

0.435 kW

Allowed: 5.0 kWh/m².a

Area of Structure: 376.04 m²

5.0 kWh/m².a X 376.04 m² = 1 880 kWh.a

Assume the lights are turned on between 17:30-21:00 each day:

That is the following number of hours per day: 3.5 hrs/day

52 weeks X 7 days X 3.5 hrs/day = 1 274 hrs/annum

0.435 kW X 1 274 hrs/annum = 554 kWh.a (<1655kWh.a)

Therefore structure complies with Part ‘O’ of SANS 10400