WhatsApp us

Insulation & Building Guides

Practical buying guides and how-to articles from our Totnes-based team, covering PIR and mineral wool insulation, plasterboard and drylining, U-values, Building Regulations and more. Not sure what you need? Try our calculators or call us on 03330 908479.

DuPont Tyvek Housewrap breather membrane

Breather Membrane vs Vapour Control Layer: What...

A vapour control layer goes on the warm side of the insulation and a breather membrane on the cold side. This guide explains why, shows where each goes in common...

Breather Membrane vs Vapour Control Layer: What...

A vapour control layer goes on the warm side of the insulation and a breather membrane on the cold side. This guide explains why, shows where each goes in common...

Kingspan Thermapitch TP10 PIR insulation board for fitting between rafters

Loft Conversion Insulation: PIR Between Rafters...

How much PIR between the rafters a loft conversion needs to reach 0.16 W/m²K, for ventilated and unventilated roofs, with Kingspan TP10 data tables.

Loft Conversion Insulation: PIR Between Rafters...

How much PIR between the rafters a loft conversion needs to reach 0.16 W/m²K, for ventilated and unventilated roofs, with Kingspan TP10 data tables.

OSB3 boards used with PIR insulation as an insulated OSB build-up

Insulated OSB Board: What It Is, Where It's Use...

Insulated OSB board is PIR insulation with OSB bonded to one face. Where it's used, how little the OSB adds to the R-value, and how it compares with fitting PIR...

Insulated OSB Board: What It Is, Where It's Use...

Insulated OSB board is PIR insulation with OSB bonded to one face. Where it's used, how little the OSB adds to the R-value, and how it compares with fitting PIR...

Alpha MF5 top hat ceiling section for MF suspended plasterboard ceilings

MF5 Top Hat Section: What It Is, Sizes, Spacing...

MF5 top hat explained: the ceiling section in an MF suspended ceiling, sold in packs of 10 × 3.6m. Sizes, brands, 450mm centres, joins, board fixing and how many packs...

MF5 Top Hat Section: What It Is, Sizes, Spacing...

MF5 top hat explained: the ceiling section in an MF suspended ceiling, sold in packs of 10 × 3.6m. Sizes, brands, 450mm centres, joins, board fixing and how many packs...

British Gypsum Thistle BondingCoat bonding plaster 25kg bag

What Is Bonding Plaster? What It's Used For and...

Bonding plaster is a gypsum undercoat for smooth, low-suction backgrounds. What Thistle BondingCoat is used for, when to use it instead of HardWall, thickness, coverage and how to apply it.

What Is Bonding Plaster? What It's Used For and...

Bonding plaster is a gypsum undercoat for smooth, low-suction backgrounds. What Thistle BondingCoat is used for, when to use it instead of HardWall, thickness, coverage and how to apply it.

Celotex GA4000 PIR insulation board, now Sopratherm

Insulation Thermal Conductivity (Lambda) Compar...

Lambda (thermal conductivity) explained in plain English, with declared λ, R-values, thickness for R 2.5 and R 5, density and price per m² for PIR, phenolic, XPS, EPS, stone wool...

Insulation Thermal Conductivity (Lambda) Compar...

Lambda (thermal conductivity) explained in plain English, with declared λ, R-values, thickness for R 2.5 and R 5, density and price per m² for PIR, phenolic, XPS, EPS, stone wool...