Insulation Applied Between and Below the Roof Rafters

U value targets will not be acheived on building sites where; 1: the insulation and associated building materials are incorrectly applied and 2: the type of insulation and associated building materials selected are not best suited to your construction project. Get it right before you enter the site.

 Roof RaftersRoof Rafter Insulation Guide 1

The roof is Ventilated below a highly breathable roofing underlay. High performance glasswool insulation rolls are applied between the roof rafters and polyisocyanurate foam (PIR) insulated plasterboards are applied below the roof rafters.

 

Roof Rafter Insulation Guide 2 

The roof is Not Ventilated below a highly breathable roofing underlay. High performance glasswool insulation rolls are applied fully Filling between the roof rafters and polyisocyanurate foam (PIR) insulated plasterboards are applied below the roof rafters.

Roof Rafter Insulation Price Guide 1&2

 

Roof Rafter Insulation Guide 3

The roof is Ventilated below a highly breathable roofing underlay. High performance glasswool insulation rolls are applied between the roof rafters and polyisocyanurate foam (PIR) rigid insulation boards are applied below the roof rafters. Counter battens are applied below the (PIR) rigid insulation boards then plasterboards.

 

Roof Rafter Insulation Guide 4 & 5

Insulation materials are vapour open (breathable) and Non combustible.

Guide 4: The roof is Ventilated below a highly breathable roofing underlay. High performance glasswool insulation rolls are applied between the roof rafters and high performance roll or slab insulation is applied between timber battens below the roof rafters.

Guide 5: Counter battens are applied above a highly breathable roofing underlay. High performance glasswool insulation rolls are applied FILLING between the roof rafters and high performance roll or slab insulation is applied between timber battens below the roof rafters.

Dermot Kearns.  Mobile: 00353 870526909

Insulation and Associated Building Products Advisor.