Wetherby Building Systems > EWI – Refurbishment > Domestic Refurb > Non Traditional Housing

Non Traditional Housing

BISF-Houses-Swansea-700x525

BISF Houses - Swansea (Before & After)

In the early 1980’s many defects in design and construction were discovered in a number of non-traditional house types that were designed and built before the 1960’s.

These designs were designated as defective under the housing defects legislation and although they only form a relatively small proportion of the UK’s non traditional housing stock, Local Authorities and private landlords are now required to bring these property types in line with current regulations in an aim to sustain local communities, improve tenant quality of living and reduce the need for potential demolition.

WBS systems have successfully been used on many of the following housing types:

Airey
Arcal
Atholl
BISF (Upper Floor)
Bison Beam
Boswell
Cornish
Corolite
Cussins
Dorlonco
Dorran
Dyke
Hawksley BL8
Hawthorne-Leslie
Kenkast

Laing Easiform
Myton
Orlit
Reema
Shepherd Spacemaker
Spooner
Stent
Swedish Timber Frame
Tarran Bungalows
Tarran Newland
Unity
Wates
Wimpey No Fines
Woolaway

U-Values

Click on the individual links above to compare example ‘before’ and after’ U-values on these property types (covers Phenolic, Mineral Wool and EPS insulation).

Case Studies

bisf1

BISF Properties: Litherland

chesterfield1

Mastin Moor - Chesterfield

bison1

Bison Beam Flats: Park Court, Scunthrorpe

diatomite1

Diatomite Properties: Manchester

fourcourts1

Four Courts: Hastings

airey-houses-1

Airey Houses

bisf-properties-1

BISF Properties - Oxford

cornish-caerphilly-1

Cornish Type 1 - Caerphilly

ellesmere-port-1

Cornish Type 2 - Ellesmere Port

HPIM3966

Orlit Properties - North Shields

petersfield-2

Reema Properties - Petersfield

bettws

Wimpey No Fines - Bettws Estate

charford-regeneration-1

Wimpey No Fines Houses - Charford

wates-1

Wates Properties - Rhymney Gwent

Airey

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Airey	0.95	50	0.26	60	0.28	80	0.29	80	0.29

Arcal

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Arcal	1.83	60	0.28	80	0.28	110	0.28	110	0.29

Atholl

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Atholl	1.34	60	0.27	70	0.30	100	0.29	100	0.29

BISF (Upper Floor)

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
BISF (Upper Floor)	1.65	60	0.27	70	0.30	100	0.29	100	0.30

Bison Beam

Before

After

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Bison Beam	2.28	60	0.29	80	0.29	110	0.29	110	0.30

Boswell

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Boswell	1.92	60	0.28	80	0.29	110	0.29	110	0.29

Cornish

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Cornish	1.99	60	0.28	80	0.29	110	0.29	110	0.29

Corolite

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Corolite	2.53	60	0.29	80	0.29	110	0.30	110	0.30

Cussins

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Cussins	0.86	50	0.27	60	0.29	80	0.30	80	0.30

Dorlonco

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Dorlonco	2.26	60	0.29	80	0.29	110	0.29	110	0.30

Dorran

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Dorran	2.02	60	0.28	80	0.29	110	0.29	110	0.29

Dyke

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Dyke	1.66	60	0.28	80	0.28	110	0.28	110	0.28

Hawksley BL8

hawksley-before

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Hawksley BL8	1.24	50	0.30	70	0.29	100	0.28	100	0.29

Hawthorne-Leslie

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Hawthorne-Leslie	1.22	50	0.30	70	0.29	100	0.28	100	0.29

Kenkast

kenkast-before

before

kenkast-after

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Kenkast	2.89	60	0.30	80	0.30	110	0.28	120	0.30

Laing Easiform

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Laing Easiform	1.92	60	0.28	80	0.29	110	0.29	110	0.29

Myton

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Myton	1.01	50	0.29	70	0.28	90	0.29	90	0.30

Orlit

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Orlit	1.34	60	0.27	70	0.30	100	0.29	100	0.29

Reema

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Reema	2.28	60	0.29	80	0.29	110	0.30	110	0.29

Shepherd Spacemaker

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Shepherd Spacemaker	1.00	50	0.28	70	0.28	90	0.29	90	0.30

Spooner

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Spooner	1.31	50	0.30	70	0.30	100	0.29	100	0.29

Stent

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Stent	0.95	50	0.28	60	0.30	90	0.29	90	0.29

Swedish Timber Frame

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Swedish Timber Frame	1.13	50	0.29	70	0.29	90	0.30	100	0.28

Tarran Bungalows

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Tarran Bungalows	2.35	60	0.29	80	0.29	110	0.30	110	0.29

Tarran Newland

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Tarran Newland	1.01	50	0.29	70	0.28	90	0.29	90	0.30

Unity

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Unity	2.03	60	0.29	80	0.29	110	0.29	110	0.29

Wates

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Wates	1.43	60	0.27	70	0.30	100	0.30	100	0.29

Wimpey No Fines

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Wimpey No Fines	2.18	60	0.29	80	0.29	110	0.29	110	0.30

Woolaway

before

after

	Before EWI	Phenolic		PIR		Mineral Wool		EPS
	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]	Thickness [mm]	U-Value [W/(m²K)]
Woolaway	1.98	60	0.28	80	0.29	110	0.29	110	0.29