AshGrid Safe-Loc Support System

We can offer an AshGrid grid bar support system that can be used to overclad a leaking roof that cannot be removed.

Alternatively this system can be used to create a insulation gap over existing metal cladding. The grid bars must be installed over the existing purlins and is not advisable to use this system on a fragile roof.

Due to the complex nature of an overcladding support system we will need to discuss your existing roof structure before we can provide a price. Please contact us to discuss this system in more detail.

Product Details

Ashgrid AG40 Bars

Grid system support bars are manufactured from 1.25mm thick galvanised steel and are supplied in either 1m, 2m or 3m lengths to suit your purlin run. Grid bars incorporate a spigot end for easy on-site connection.

3m AshGrid AG40 Support Channel (Fixed Effective Length
2m AshGrid AG40 Support Channel (Fixed Effective Length)
1m AshGrid AG40 Support Channel (Fixed Effective Length)

Ashgrid AB40 Brackets

Grid bar high performance brackets are manufactured from 1.6mm thick galvanised steel supplied with a 3mm thick EPDM base thermal pad.

The standard bracket depths are: 60mm, 80mm, 85mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 170mm, 180mm, 190mm, 200mm, 210mm, 220mm, 230mm, 240mm, 250mm & 280mm.

Ashgrid ABV Brackets

Manufactured from 1.6mm thick galvanised steel to DX51D + Z275 BS EN 10142. Supplied with a 3mm thick EPDM base thermal isolator pad. The standard bracket depths are: 240mm, 260mm, 280mm, 300mm, 320mm, 340mm, 360mm, 380mm & 400mm.

U Value Requirements

W/m²K	Roof	Vertical Walls
0.16	280mm	–
0.18	240mm	–
0.20	220mm	210mm
0.25	180mm	170mm
0.26	170mm	160mm
0.35	130mm	120mm

Notes
• All values are for insulation thickness and cavity depth
• Ashgrid brackets assumed to be at 1.0m centres
• Purlin/Sheeting rail centres assumed to average out to 1.2m

Load Span Table

	Bracket Centers Along Bar (m)	Direction of Loading	Purlin Centres (m)
			1.00	1.20	1.40	1.60	1.80	2.00
			Loading in kN/m²
AG40 BAR	0.5	Dowload	6.00	5.00	4.29	3.75	3.33	3.00
	0.5	Uplift	6.00	5.00	4.29	3.75	3.33	3.00
	0.6	Dowload	5.00	4.17	3.57	3.13	2.78	2.50
	0.6	Uplift	5.00	4.17	3.57	3.13	2.78	2.50
	1.0	Dowload	2.23	1.86	1.59	1.39	1.24	1.12
	1.0	Uplift	2.55	2.13	1.82	1.59	1.42	1.28
	1.1	Dowload	1.84	1.54	1.32	1.15	1.02	0.92
	1.1	Uplift	2.11	1.76	1.51	1.32	1.17	1.05
	1.2	Dowload	1.55	1.29	1.11	0.97	0.86	0.77
	1.2	Uplift	1.77	1.48	1.26	1.11	0.98	0.89
AG40 BAR with TH40	1.0	Dowload	3.00	2.50	2.14	1.88	1.67	1.50
	1.0	Uplift	3.00	2.50	2.14	1.88	1.67	1.50
	1.1	Dowload	2.73	2.27	1.95	1.70	1.52	1.36
	1.1	Uplift	2.73	2.27	1.95	1.70	1.52	1.36
	1.2	Dowload	2.50	2.08	1.79	1.56	1.39	1.25
	1.2	Uplift	2.50	2.08	1.79	1.56	1.39	1.25

Notes
• All loads are working loads
• Steel based on Z35 material
• Download deflection = span/200
• Figures limited to a bar/ bracket connection load of 3kN
• Pull-out of screws into purlin assumed to be 3kN
• Ultimate bending stress is based on a load factor of 1.6 for download and 1.4 for uplift

Related Products

Mini Z Overcladding Bars

from £18.09+VAT / Each

Available Colours

Made to order from £ /products/

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If you would like to chat about your requirements please call ahead to make an appointment. Alternatively you can complete our online Contact Form or Request a call back!

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AshGrid Safe-Loc Support System

AshGrid Safe-Loc Support System