D249.03 Proposed Floor Plan and
Natural slate roof covering Conservation rooflights
***The top or underside of the entire roof structure is to have 9mm ply, or similar to be laid with staggered joint, and nailed to every rafter with 3mm dia. galv round wire nails at max 200mm centres.
Natural slate roof covering
L2 at bearing ends, use 440 x 100 x 215mm mass concrete p/stone 2 no M16 Rag bolts
2/50 x 150mm C24 timber rafters eitherside of dormer window/ rooflight construction bolted together at max 600mm c/c with M12 (gr8.8) bolts
Gable Elevation
timber leadged and braced doors
Front Elevation (Scale 1:100)
(Scale 1:100)
125 x 50mm C16 timber rafters @ max 400c/c
2/50 x 150mm C24 timber rafters eitherside of dormer window/ rooflight construction bolted together at max 600mm c/c with M12 (gr8.8) bolts
SVP
VB - 2/50 x 200mm C24 or 225 x 75mm C24 timber valley beams bolted together with M12 (gr8.8) bolts at max 600mm c/c
DR
VB - 2/50 x 200mm C24 or 225 x 75mm C24 timber valley beams bolted together with M12 (gr8.8) bolts at max 600mm c/c
DR
Storage Area
125 x 50mm C16 timber rafters @ max 400c/c
Dormer roof construction (refer to specification) In-line slate vent for SVP outlet
EXTRACT
tr
R3 - 305 x 165 x 54 UB ridge beam DR
VB
R1
R1
Storage Area
R2 - 200 x 75mm C16 Ridge beam L1
R1 - 254 x 146 x 37 UB cantilever ridge beam
SD
SD
125 x 50mm C16 timber rafters @ max 400c/c
Ridge beam to cantilever over internal blockwork walls and support ridge R4 & Valley beams VB 440 x 100 x 215mm deep mass concrete p/stones with ragbolts (see eng. detail)
L1
Storage Area
R4 - 200 x 100mm Timber ridge beam
DR VB - 2/50 x 200mm C24 or 225 x 75mm C24 timber valley beams bolted together with M12 (gr8.8) bolts at max 600mm c/c
SD
125 x 50mm C16 timber rafters @ max 400c/c
440 x 100 x 215mm mass concrete p/stone 2 no M16 Rag bolts
VB
at bearing ends, use 440 x 100 x 215mm mass concrete p/stone 2 no M16 Rag bolts L2
L2
Rear Elevation (Scale 1:100)
Gable Elevation (Scale 1:100) Ref to Eng design calculations for connection details
Ref to Eng design calculations for connection details
First Floor Plan
(Scale 1:50) ic 110mm dia uPVC foul drain at min fall
***The top or underside of the entire roof structure is to have 9mm ply, or similar to be laid with staggered joint, and nailed to every rafter with 3mm dia. galv round wire nails at max 200mm centres.
Natural slate roof covering
L2 at bearing ends, use 440 x 100 x 215mm mass concrete p/stone 2 no M16 Rag bolts
2/50 x 150mm C24 timber rafters eitherside of dormer window/ rooflight construction bolted together at max 600mm c/c with M12 (gr8.8) bolts
Gable Elevation
timber leadged and braced doors
Front Elevation (Scale 1:100)
(Scale 1:100)
125 x 50mm C16 timber rafters @ max 400c/c
2/50 x 150mm C24 timber rafters eitherside of dormer window/ rooflight construction bolted together at max 600mm c/c with M12 (gr8.8) bolts
SVP
VB - 2/50 x 200mm C24 or 225 x 75mm C24 timber valley beams bolted together with M12 (gr8.8) bolts at max 600mm c/c
DR
VB - 2/50 x 200mm C24 or 225 x 75mm C24 timber valley beams bolted together with M12 (gr8.8) bolts at max 600mm c/c
DR
Storage Area
125 x 50mm C16 timber rafters @ max 400c/c
Dormer roof construction (refer to specification) In-line slate vent for SVP outlet
EXTRACT
tr
R3 - 305 x 165 x 54 UB ridge beam DR
VB
R1
R1
Storage Area
R2 - 200 x 75mm C16 Ridge beam L1
R1 - 254 x 146 x 37 UB cantilever ridge beam
SD
SD
125 x 50mm C16 timber rafters @ max 400c/c
Ridge beam to cantilever over internal blockwork walls and support ridge R4 & Valley beams VB 440 x 100 x 215mm deep mass concrete p/stones with ragbolts (see eng. detail)
L1
Storage Area
R4 - 200 x 100mm Timber ridge beam
DR VB - 2/50 x 200mm C24 or 225 x 75mm C24 timber valley beams bolted together with M12 (gr8.8) bolts at max 600mm c/c
SD
125 x 50mm C16 timber rafters @ max 400c/c
440 x 100 x 215mm mass concrete p/stone 2 no M16 Rag bolts
VB
at bearing ends, use 440 x 100 x 215mm mass concrete p/stone 2 no M16 Rag bolts L2
L2
Rear Elevation (Scale 1:100)
Gable Elevation (Scale 1:100) Ref to Eng design calculations for connection details
Ref to Eng design calculations for connection details
First Floor Plan
(Scale 1:50) ic 110mm dia uPVC foul drain at min fall
