What should blast-resistant glazing cost in Lerwick?
As a guide, blast-resistant glazing costs £450 to £1,495 plus VAT (£540 to £1,794 inc VAT) per m². Because work in Lerwick is arranged individually, we confirm the full price, including any travel, in writing first.
Blast-resistant glazing is laminated glass fitted in a frame and fixing system designed to stay in the opening, or fail safely, when hit by the pressure wave from an explosion. Its purpose is to stop glass becoming high-speed fragments, which cause most injuries in a blast, and it is designed from a threat assessment rather than chosen off the shelf.
Specification at a glance
- Work planned from the threat assessment and engineer's design
- Blast-resistant net curtains as a fragment-catching layer
- Manufacturer's test evidence supplied with your quote
- Laminated glass with thick or stiff interlayers
- Deep-bite frames and structural silicone or mechanical retention
- Sealed units with a laminated inner pane
Fitting in Lerwick
Surveys and fitting in Lerwick are arranged case by case because of travel and glass delivery. Tell us about the job and we will come back with options.
The island groups have small stone-built towns such as Kirkwall, Lerwick and Stornoway and scattered rural properties, with exposed weather and ferry freight for every glass delivery.
Good candidates for blast-resistant glazing:
- Transport hubs, venues and stadium frontages
- Government, council and civic buildings
- Laboratories and industrial sites with process risks
- Embassies, courts and police premises
Before the glass is ordered
Frame and fixings
The frame must hold the glass and the fixings must hold the frame. Upgrading glass alone can move the failure to the frame.
Who sets the level
The design pressure comes from a threat and risk assessment by a security adviser or blast engineer, not from the glass supplier.
Glazing rules in Scotland
Planning permission
Under the Scottish planning system the council decides whether a new or altered shopfront needs planning permission; changing the glass in an existing frame usually does not. Bollards or barriers in a road or footway need consent from the roads authority, which is normally the council.
Listed buildings and conservation areas
Listed buildings in Scotland need listed building consent from the council for works affecting their character, which can include historic glass, glazing bars and sash windows. Historic Environment Scotland is consulted on some cases and publishes guidance on traditional windows. Conservation areas bring extra scrutiny of shopfronts and external changes.
How it works
- Send sizes, photos and your postcode
- We confirm what is possible and when
- Fixed price in writing
- Glass made, delivered and fitted
Blast-resistant glazing in Lerwick: questions
Can you work in Lerwick?
Work in Lerwick is arranged individually because of travel. Send your postcode and details and we will confirm what is possible.
Can existing windows be made blast-resistant?
They can often be improved. Anti-shatter film with an edge-retention system, laminated replacement glass in strengthened frames or internal secondary glazing can cut the flying-glass hazard, depending on the threat.
What does ER1 to ER4 mean?
They are explosion-pressure classes in BS EN 13541. Glass samples are tested in a shock tube, with higher classes meaning higher pressures. The class applies to the glass, so the frame must be designed to match.
Is blast film enough on its own?
Film helps hold glass together but works much better when the film is anchored to the frame so the whole pane cannot fly in. Plain film without retention offers less.
Other glazing in Lerwick
- Safety glazing for schools and public buildings
- Glazing bead security upgrades
- Anti-ram-raid glazing
- Toughened safety glass
- Anti-bandit glass
- Security secondary glazing
Send sizes and photos with the form, or call 0800 088 6248.