Ashjack - Laydex · Ashjack™ Ash & Lacy design services package 8 Initial site survey If required an Ashjack technical representative carries out an initial site survey and information

Ashjack™

CI/SfB(27.2) X

UniclassL3824

EPICC261

June 2006

O V E R - R O O F C O N V E R S I O N S Y S T E M S

Ashjack™

Contents

2

Introduction / features & benefits .............................................................. 3

Why do flat roofs fail? ................................................................................ 4

Refurbishment options .............................................................................. 5

Ashjack over-roof conversion systems .................................................... 6

Ash & Lacy design package .................................................................... 7

Roof layout / delivery to site ...................................................................... 9

Ashjack propped rafter system - step-by-step assembly .................. 10

Installation / R & D / quality assurance .................................................. 11

Ashjack over-roof conversion systems - propped rafter ...................... 12

Ashjack over-roof conversion systems - curved rafter ........................ 14

Ashjack over-roof conversion systems - lightweight spanning truss .. 16

Typical base connection details .............................................................. 18

Typical frame connection details ............................................................ 19

Typical eaves details ................................................................................ 20

Typical ridge details ................................................................................ 22

Case studies ............................................................................................ 23

The total package solution ...................................................................... 27

Introduction – features & benefits

3

Lightweight over-roof conversion

systems were first developed in the late

1980’s and have been used extensively

throughout the public and private sector

as a permanent refurbishment solution

for failed flat roofs. By constructing a

lightweight steel sub-frame over the

existing roof (which is then over-clad),

an effective pitch is created to

facilitate water run-off. This combined

with the relocation of drainage to the

outside of the building ensures water is

permanently removed from a roof and

the potential for any further problems

eliminated.

Developed by Ash & Lacy in 1988,

Ashjack was the first structural

lightweight over-roof conversion system

in the UK. Supported by a network of

approved installers, Ashjack provides a

range of systems, which can be

individually tailored to suit the specific

structural and design requirements of

the existing building.

Features & benefits

� Provides a permanent solution

to flat roof failure

� Systems individually designed

and tailored to suit structural

requirements

� Cost-effective - can be designed

to fit almost any budget

� Minimum disruption to building

occupants

� Dramatically upgrades building

aesthetics

� Provides opportunity to upgrade

thermal performance

� Life of building considerably

extended and future maintenance

costs reduced

� Ideal for new build projects -

lightweight alternative to timber

trusses or heavy hot rolled sections

� Insurance backed latent defects

warranty available

� BBA and LANTAC

approvals

Ashjack™

Why do flat roofs fail?

4

No pitch to facilitate run-off – internal drainage

Inability to shed water

Ponding water decreasesdesign life of roof

Accelerated deterioration of weatherproofing layer

Water ingress

Wet insulation = reducedperformance = increased

heating billsDeterioration of roof

deck / structure

Increased roof loading =further deflection of deck =further drainage problems

Cycle of roof failure

Many flat roofs constructed during the

1960’s/1970’s have failed because of

their inability to shed water. When

designed, adequate provisions for

drainage such as falls to facilitate run-off

and external drainage systems were not

incorporated which has resulted in water

being present on roofs for extensive

periods of time. The presence of water

can seriously decrease the design life of

a roof by accelerating the deterioration of

the weatherproofing layer and eventually

the roof itself. Left unchecked ponding

can also increase roof loading, causing

further deflection of the roof deck, adding

further to the problem of drainage.

Once water has penetrated the roof

structure the performance of the existing

thermal insulation can be reduced

significantly thereby increasing energy

consumption, running costs and CO2

emissions. Unless a strict maintenance

plan has been adhered to the first sign of

failure is generally ceiling staining or

water leaking through the roof, which left

unrepaired could eventually lead to total

roof failure.

� Ponding – inability to shed water

� Deterioration of Weatherproofing layer

� Internal drainage – no effective removal of water

� Poor thermal performance = increased heating bills

� Short-term solutions = ongoing maintenance costs

� Ongoing roof leakage

� Poor aesthetics

� Roof has reached end of design life

� Ongoing structural degradation

� Value of building reduced

Refurbishment options

5

There are a number of refurbishment

options available but many only

provide a short-term solution, as the

actual cause of the problem is never

properly addressed. Quick, low-cost

repairs can often mask the actual

problem, which can lead to further

degradation of roof and consequently

more costly refurbishment in the long

run. Therefore when selecting a

refurbishment option a longer-term

view should be sought with the primary

objective being the permanent

removal of water from the roof.

Patching

Patching is initially a low-cost option

but it can prove more expensive in the

longer-term as it only masks the

problem. Issues associated with

moisture ingress and the continued

degradation of the roof structure are

not addressed and any water trapped

within the structure usually finds

another route into the building, which

can compound the problem further.

Strip & replace

Stripping and replacing an existing roof

is an expensive option and can again

be a short-term solution as the new

roof will be subject to exactly the same

conditions as the existing roof.

Furthermore, following changes to Part

L of the Building Regulations (England

& Wales) in 2006, the new roof would

also have to comply with more onerous

thermal performance requirements.

There are also further costs associated

with this refurbishment method, as

disruption during construction will

mean the costly relocation of building

occupants.

Cut-to-falls

Cut-to-falls tapered systems are a

more popular option as actual falls are

created to aid the drainage of water

from the roof. However, although

gentle falls are created, the drainage

method is still internal and outlets

could potentially block if a strict

maintenance plan is not adhered to.

Over-roof conversion system

Lightweight over-roof conversion

systems not only incorporate a pitch to

facilitate run-off but offer the option

of moving drainage to outside the

building. This cost-effective method of

refurbishment provides a permanent

solution to the removal of water from

a roof, significantly upgrades the

appearance of the building and avoids

any disruption to the building

occupants.

Patching Strip & Cut to Over-roofreplace falls conversion

system

Permanent removal of water from roof X ? ? �

Aesthetic properties upgraded X X X �

Increased property value X X X �

Opportunity to upgrade thermal performance X � � �

Minimum disruption to building occupants � X ? �

Eliminates unwanted roof access X X X �

Ashjack™

Over-roof conversion systems

6

Ashjack over-roof conversion systems

are constructed using a bespoke

lightweight steel framing system, which

is primarily designed to create a roof

pitch. Offering a permanent solution to

failed flat roofs they can be used to

construct a variety of pitched or curved

roof structures that incorporate ridges,

hips, valleys soffit/fascias and

overhangs. A range of systems are

available which can be individually

designed and tailored to suit the specific

structural and design requirements of

the existing roof. The lightweight

structural metal frame system has an

excellent strength to weight ratio and

can support both modern and traditional

over-cladding systems to achieve the

required aesthetics.

Accommodating a variety of roof

pitches, the system is also ideal for use

on new build projects where it provides

a lightweight alternative to timber

trusses or heavy hot rolled sections.

Standing Seam Profiled Cladding Insulated Panels Tile Effect Sheets Slates & Tiles

The benefits of Ashjack over-roof conversion systems

� Drainage moved to outside of building

� Minimum disruption to occupants

� Upgraded aesthetics

� Security by design – overhanging eaves

� Reduced maintenance costs

� Thermal & acoustic performance

upgraded

� Value of building increased

� Life of building extended

� Sun pipes replace rooflights

� Reduced running costs and Co2 emissions

� Prevents unauthorised roof access


Ash & Lacy design services package

7

All Ashjack over-roofing structures are designed in accordance with the following

British Standard Codes of Practice and installed by a network of approved installers.

BS6399 : Part 2 : 1997 Code of practice for wind loads

BS6399 : Part 3 : 1988 Code of practice for imposed roof loads

BS5950 : Part 5 : 1998 Code of practice for design of cold formed thin gauge sections

Structural stability

The type of Ashjack over-roof conversion

system recommended is generally

determined by the structural stability of

the existing roof. Providing the roof is

structurally sound a site-assembled

Ashjack Propped Rafter or Post & Rail

(for lower pitch frameworks) system is

usually selected. This offers the most

cost-effective solution as it makes use of

the inherent strength and loading

capabilities of the existing roof structure.

The external walls should be checked to

establish their capability to support the

new load distribution.

Generally flat roofs constructed during

the 1960’s/70’s were designed to carry a

general snow load of 0.75kN/m2.

The current British Standard Code of

Practice (BS6399: Part 3: 1998 - code of

practice for imposed roof loads) makes

an allowance for a general snow loading

of 0.60kN/m2 so leaving a theoretical

surplus of 0.15kN/m2 or 15kg/m2. As a

typical example, the build-up of a new

over-roof conversion system comprising

the following would add a further load of:

Ashjack sub frame system = 4kg/m2

Steel over cladding = 7kg/m2

This gives a total combined weight of

11kg/m2, which is well within the

15kg/m2 structural capabilities of the

existing roof.

If an existing roof does not have the

capacity to support any further load a

clear spanning option is available which

uses the existing load bearing walls to

provide support. The Ashjack Spanning

Truss over-roof conversion system is

factory assembled using a series of

purpose made sections.

Using the latest technology Ash & Lacy’s Ashjack team offer an unrivalled design

and technical support package, which is available to give design and application

advice on a wide variety of issues from project concept through to project

completion. Each Ashjack project is individually designed and tailored to provide a

cost-effective refurbishment solution that meets the aesthetic and performance

requirements of the client.

Roof Application

Multilevel/ Clear Existing Roofing

Ashjack System Pitched Curved uneven Spanning Structurally Structurally

roof sound unsound

Spanning Truss � X � � � �

Propped Rafter � � � X � X

Ashjack™


8

Initial site survey

If required an Ashjack technical

representative carries out an initial site

survey and information is obtained to

determine the type of Ashjack over-roof

conversion system required:

� Existing roof construction type and

depth of roof build-up

� Spanning directions of the existing

roof supports

� Existing roof perimeter dimensions

and section details

� Details and dimensions of any

obstructions on the existing roof

e.g. plant rooms, water tanks etc

� Orientation of existing falls

� Profile of existing roof with spot levels

� Original as-built drawings (if available)

At this stage our design team will

discuss the clients requirements, the

options available, and highlight any

special features to ensure best value.

� Proposed roof pitch and orientation

� Proposed new roof covering /

aesthetic requirements

� Security measures e.g. projecting

eaves

� Thermal and acoustic requirements

� Details of any new plant / obstructions

to be installed

� Rooflight / sun pipe requirements

If required Ash & Lacy can arrange to

have a structural survey undertaken on

the existing roof / structure on behalf of

the client on a fee basis prior to

commencement on site.

Assistance with planning approvals,

Building Regulation compliance and

NBS specifications is also available

upon request.

Design Proposal

Following the initial site survey, design

proposals and preliminary drawings

(if required) are prepared together

with budget costs for feasibility.

More accurate costs for the allocation

of budgets can also be supplied in

partnership with our extensive network

of Ashjack approved contractors.


9

All materials for the Ashjack propped

rafter over-roof conversion system

are delivered to site fully prepared

and individually marked for easy

identification, ready for installation.

Ashjack spanning truss systems are

delivered as a full unit or in two halves

depending on the overall roof span. All

materials are accompanied by a full set

of erection drawings and if required the

services of a site engineer on the first

day on site to offer help and instruction.

If required by the client, inspections are

also undertaken during the installation

process to ensure all materials are

fixed in accordance with Ash & Lacy

recommendations.

Delivery to site

� Proposed pitched roof layout showing ridge line and hips

� Existing flat roof layout

Ashjack™

Propped rafter system – step-by-step site assembly

10

1. Fix the specified base member (with

a bed of mastic underneath at each

fixing point) to the existing roof

structure with the appropriate type

and number of base fixings.

6. Install all necessary hip, valley and

cleader members.

Ashjack spanning truss system

Full spanning trusses are supplied fully

assembled for site installation, where

they are fixed to the existing structure

using appropriate bracket details. For

details, advice or a copy of the Ashjack

installation manual, please refer to the

Ashjack Technical Department.

2. Ensure the post members are

vertical and fix to the base member

with the appropriate type and

number of fixings.

3. Brace the vertical prop members

and slot the adjustable heads onto

the top of the posts.

4. Place rafter member on top of the

heads and fix with the appropriate

type and number of fixings. Raise

the rafter to the specified height

and secure the head to the post

with the appropriate type and

number of fixings.

5. Set out the purlins over the rafter

back and secure by fixing into each

flange with the appropriate type and

number of fixings.

Installation / R&D / quality assurance

11


are installed by a nationwide network of

approved contractors who work in

partnership with Ash & Lacy. Before

achieving approval status, all contractors

have to successfully complete a training

course at the Ashjack Academy at Ash &

Lacy’s West Bromwich head quarters.

Alternatively training is also carried out on

site by an Ash & Lacy site services

engineer. This ensures that all Ashjack

over-roof conversion systems are

installed in accordance with Ash & Lacy’s

stringent quality code of practice. For

details of your nearest Ashjack approved

contractor please contact Ash & Lacy

Building Systems.

Research & Development

A continuous programme of Research

and Development ensures that Ash &

Lacy are always at the forefront and able

to offer technologically advanced

solutions to meet the ever-changing

requirements of the 21st Century. As part

of this commitment to Research and

Development, Ash & Lacy has made a

considerable investment in a state-of-

the-art testing facility at

the company’s West Bromwich

headquarters. As reliability and

performance are two of the most

important criteria of a roofing system,

rigorous testing procedures are

undertaken to ensure that all Ashjack

systems meet the design-life

requirements of a building.

Quality Assurance

To guarantee product quality and

performance Ashjack over-roof

conversion systems undergo extensive

testing procedures both internally at Ash

& Lacy’s West Bromwich testing facility

and externally through external

organisations such as CERAM. All

components are manufactured in

accordance with BS EN ISO 9001: 2000

and all materials conform to BS EN

10147: 2000.

Ashjack material specification


are manufactured from high yield

galvanised steel which conforms to BS

EN 10147: 2000, S390GD + Z275 NA-C

S390GD guaranteed minimum yield

stress in N/mm2

Z275 total (including both surfaces)

minimum zinc coating mass

in grams per square metre

based on a triple spot test

NA-C normal spangle surface finish

supplied with a chromate

chemical passivation

The Ashjack framing system is

assembled using Ashfix™ LS25 fixings

(1.25mm - 3mm thickness steel)

Ashjack™

Over-roof conversion system – propped rafter

12

For component connections

refer to page 19 illustration A

13

The Ashjack propped rafter over-roof

conversion system is constructed using

a series of purpose made sections

comprising telescopic heads, rafters,

purlins, bracing and fascia / soffit frames.

Taking advantage of the inherent

strength and loading capabilities of the

existing structure these are assembled

on site to construct a lightweight

structural framework, which is then fixed

through the existing roof to a suitable

main support.

Features & benefits

� Cost-effective refurbishment option

� Offers total flexibility - ideal for the

refurbishment of uneven or multi-

level roof surfaces

� Frames typically fixed at centres from

1200mm to 3000mm depending on

existing roof construction

� Framework easily positioned to avoid

existing obstructions or services

� Firewalls or support for new services

can be accommodated

� Lightweight system – self weight

typically 3-5kg/m2

� Simple installation technique

� Ideal for steeper roof pitches

� Maximum roof pitch 35o

� Eliminates roof damage by vandals

Ashjack™

Over-roof conversion system – curved rafter

14

15


refer to page 19 illustration A

The Ashjack curved rafter over-roof

conversion system is based on the

propped rafter system but is designed

to create a curved roof structure by

incorporating pre-curved rafters, which

are fixed onto the site-assembled

framework. As with the standard

propped rafter system, this system

takes advantage of the inherent

strength and loading capabilities of the

existing structure and the framework is

fixed through the existing roof to a

suitable main support.

Features & benefits

� Creates robust single or multi-curved

roof structures

� Ideal for use with standing seam

roofing systems

� Offers total flexibility - ideal for the

refurbishment of uneven or multi-level

roof surfaces

� Frames typically fixed at centres from

1200mm to 3000mm depending on

existing roof construction

� Framework easily positioned to avoid

existing obstructions or services


can be accommodated

� Simple installation technique

� Lightweight system – self weight

typically 3-5kg/m2

� Eliminates ridge flashing details


Ashjack™

Over-roof conversion system – lightweight spanning truss

16

The Ashjack spanning truss over-roof

conversion system is designed for use

on existing roofs that do not have the

capability to support any further load.

Instead, factory assembled clear

spanning trusses constructed using a

series of purpose made sections are

supported by the existing load bearing

walls or columns. Once in place, the

trusses are fixed into the connection

plates, braced, and the roof purlins

secured. Depending on the size of roof

the spanning trusses will be delivered

as a full unit or in two halves.

Features & benefits

� Up to 15m clear span with existing

sections (greater spans are

available, please refer to our

technical department)

� No roof penetrations

� Delivered as fully assembled trusses


can be accommodated

� Cost savings on site – faster

installation

� Maximum roof pitch 35o


17


refer to page 19 illustration B

Ashjack™

Typical base connection details

18

� Concrete

� Timber

� Steel

Note: All Base fixings to be sealed with a waterproof sealant at point of fixing

Type of fixing & depthembedded to be determined by Ash & Lacy site pull outtests/calculations

Ashjack zed base member, fixed directly into concrete slab.(Structurally more robust than a simple angle)

Ashjack Top hat spreader member, used to span across decking substrate to minimise compression and facilitateefficient distribution of loads.

Ashjack base member(may be orientated in lieu of spreader)

Ashjack Zed basespreader member

Type and frequency of fixingto be advised by Ash & Lacy

Depth of timber to bedetermined to avoid splittingwhen fixing base member

Typical frame connection details

19

� Component connection details for standing seam roofing solutions.

� Component connection details for other roof constructions.

Note: All sections and systems have been independently tested and carry full BBA approval.

Ashjack AG40/BX40patented prop system.Supplied pre-cut tosuit levels taken byAsh & Lacy siteservices engineer

Ashjack base Zed memberavoids eccentric loading

associated with plain angles

Ashjack P40/65 Purlinwith a 65mm bearingface to provide a solidbase for halter clips

Ashzip halters to suit Ashzipstanding seam roofing system

Ashjack AG40/BX40patented prop system.Supplied pre-cut tosuit levels taken byAsh & Lacy siteservices engineer

Ashjack channel rafterbacks provided. Pre-cutto suit site dimensions

Ashjack telescopic heads for final on site

minor adjustments

Ashjack base Zedmember avoids eccentric

loading associated with plain angles

Zed purlin strap incorporated to provideadditional strength and high uplift capacity

Zed purlin depth may varyto accommodate largerframe centres and loads

A

B

Ashjack™

Typical eaves details

20

� Eave detail 1

� Eave detail 2

Ashjack roof purlins

Ridge to eaves metaltile effect roof sheeting

Ashjack U-channelrafter/tophat

Ashjack eavesconnection cleat

Ashjack adjustableprop

Ashjack cantilever

support

Ashjack basespreader

Ashjack base fixings,frequency determinedby design calculations

Ashfab bullnose fasciaand soffit closures

Ashfab purpose made gutter

Ashfab eavesclosure

Ashjack roofpurlins andstraps

Ashzip standing seam


Ashjack eavesconnection cleat

Ashjack cantileversupport



Ashzip halter

Typical eaves details

21

� Eave detail 3

� Eave detail 4

Traditional tile/metal effect Ashjack

tophat rafter


Ashjack cantilever

support



Timber battensupports by others

Existing roofconstruction


Ashjack cantilever

support



Single skintrapezoidal roofsheeting

Ashjack zed purlinand purlin strap


Ashjack™

Typical ridge details

22

� Ridge detail 3

� Ridge detail 2

� Ridge detail 1

Note: All connections require 2 No. Ashfix LS25 fixings unless noted otherwise on Ashjack structural frame calculations/drawings.

Timber battens (by others)

Telescopic Heads

AG40/BX40Props

Ashjack bracing

Telescopic Heads

AG40/BX40Props

Ashjack bracing

Telescopic Heads

Ashjack purlin strap

AG40/BX40Props

Ashjack bracing

Ashjack P40 Series purlin sections

Ashjack Zed purlins

Case studies – education

23

The Bishop of Hereford’s Bluecoat School

Problem:

The existing flat roof was constructed

in 1974 and had reached the end of

its design life. It was leaking badly

and internal valley gutters were

compounding the problem further.

Solution:

An Ashjack propped rafter over-roof

conversion system was used to create

a pitched roof structure to facilitate

run-off and the internal valley gutters

were replaced with external gutters.

Sun pipes were installed to

compensate for the loss of around

60 skylights in the original flat roofs.

Feniscowles Primary School, Blackburn

Problem:

The existing felt roof had reached the

end of its design life a number of years

ago and the internal drainage together

with a build-up of leaves from trees

surrounding the school was making the

problem worse.

Solution:

A lightweight Ashjack curved rafter

conversion system was selected to

create a roof with a single curve,

which eliminated existing valleys

and allowed drainage to be moved

to the outside of the building.

It also provided an ideal solution for

over-roofing the quadrant areas to

create additional classroom space.

Ashjack™

Case studies – health

24

Newham General Hospital

Problem:

The hospital had suffered leakage

problems for many years from a series

of continually degrading flat roofs.

Ongoing repairs were costly and had

only provided a short-term solution to

the problem. A cost-effective and long-

term solution was required that would

involve the phased construction of a

new roof over the whole of the hospital,

whilst it remained fully operational.

Solution:

A roofing system combining the

Ashjack propped rafter system and a

series of lightweight trusses to span the

voids was designed to provide a

permanent solution to the existing

failed flat roofs. The project was

completed without any disruption to

building occupants and without the

need for any heavy lifting equipment.

Case studies – social housing

25

London Borough of Tower Hamlets

Problem:

As part of a major refurbishment

programme of social housing within the

Borough there was a requirement to

replace failed flat roofs on several

residential housing blocks. As an

alternative to the ongoing patching of

the roofs the Local Authority was keen

to provide a permanent solution to

avoid further structural degradation.

Solution:

A simple propped rafter Ashjack over-

roof conversion system was designed

with an aesthetically pleasing fascia

and soffit detail. By incorporating a roof

pitch and moving drainage to the

outside of the building any further

problems associated with the existing

flat roofs were eradicated and the

quality of life for residents improved.

Ashjack™

Case studies – specialist

26

Severn View Motorway Services, Aust

Problem:

As part of a major commercial

redevelopment to convert a former

motorway services building into the new

head offices of Motion Media

Technology, it became apparent that the

existing flat roof had been the source of

many leakage problems through its life.

Solution:

The project features a complex

Ashjack lightweight post & rail over-

roof conversion system, incorporating

ridge, hips and valley situations

in addition to a 1metre cantilevered

eaves overhang. The system, which

achieved the required aesthetics,

provided a permanent solution to the

failure of the existing flat roof and was

specifically designed to meet the

challenging conditions posed by the

exposed location.

Royal Military Academy, Sandhurst

Problem:

Repairs had been carried out many times

to the mastic asphalt weatherproofing,

but the various coatings and patches had

only provided a short-term solution to the

roof leakage problems. Drainage outlets

positioned in the roof centres were

creating additional problems, as they

were not providing an adequate

mechanism for the removal of water.

Solution:

An Ashjack propped rafter over-roof

conversion system was selected to

create a pitched roof structure to

facilitate run-off. Drainage was moved

to the outside of the building thereby

eliminating the potential for any future

problems.

The total package solution from a single source

27

To ensure compatibility between

individual components and to make the

design, specification and installation

process as smooth and as risk-free as

possible, the Ash & Lacy package

solution is available from a single

source. From rainwater goods to the

bespoke architectural fabrications that

create the visually important perimeter

details, all products undergo rigorous

testing procedures and offer the

unrivalled product quality and customer

service associated with Ash & Lacy

Building Systems.

All products are supported by a

comprehensive technical advisory

service, which is available from the

design stage right through to the

completion of the project.

Ashzip Standing seam roofing systems

Ashjack Over-roof conversion systems

AshgridSpacer support systems

AshfabArchitectural fabrications & flashings

AshfixFasteners and accessories

Ashtech Architectural wall panel systems

Ash & Lacy also offer an extensive

range of Ashflow rainwater

management systems.

Head Office: Bromford Lane, West Bromwich, West Midlands B70 7JJ Tel: 0121 525 1444 Fax: 0121 525 3444

London Office: Unit 8c, Kingston House Estate, Portsmouth Road, Kingston-upon-Thames, Surbiton, Surrey KT6 5QG Tel: 020 8335 2600 Fax: 020 8335 2666

Glasgow Office: Unit 4a, Albion Trading Estate, South Street, Whiteinch, Glasgow G14 0AR Tel: 0141 950 6040 Fax: 0141 950 6080

All E-mail enquiries to: [email protected] or [email protected] Website: ashandlacy.com

Ash & Lacy reserve the right to amend product specifications without prior notice. The information, technical details and fixings advice included in this

brochure are given in good faith but are intended as a guide only. For further information, please contact Ash & Lacy Building Systems.

ASHZIP™

STANDING SEAM ROOFING SYSTEMS

ASHJACK™

OVER-ROOF CONVERSION SYSTEMS

ASHTECH™

RAINSCREEN CLADDING SYSTEMS

ASHFAB™

ARCHITECTURAL FABRICATIONS & FLASHINGS

ASHFLOW™

RAINWATER MANAGEMENT SYSTEMS

ASHGRID™

SPACER SUPPORT SYSTEMS

ASHFIX™

FASTENERS & ACCESSORIES

Documents

Ashjack - Laydex · Ashjack™ Ash & Lacy design services package 8 Initial site survey If required an Ashjack technical representative carries out an initial site survey and information