Under Rafter Roof Insulation

Arguably the most popular pitched roof solution installing insulation between and under the rafters uses the depth of the structural timbers to best effect.

Under rafter roof insulation.

Https youtu be w4mkphzmqxw contact us restorat. Install underlay above the rafters. These devices allow air to circulate under the roof a necessity for prevention of mold and mildew. For a ventilated roof fix battens on the inside of the rafters 50mm from the underlay to leave vented air spaces.

When insulating a pitched roof at rafter level there are a number of key design considerations which will affect the build up of the roof and the choice of insulation. An efficient room in a roof in a new build property where over rafter insulation is not desirable. Where the benefits of over rafter insulation want to be enjoyed while still creating a useable room in the roof space it s possible to insulate over and between the rafters. Firstly just to make it clear when we are talking about rafter level we mean the timbers that support the pitched roof.

Time to get the insulation finished and get this place warm. Additionally insulation serves as a way to enhance sound proofing on the uppermost envelop of your house. Insulating in and around your roof attic space also prevents long term damage from moisture build up or ice damming which results from the warm air trying to escape through the apex of the roof but instead heating up the snow. It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow.

Measure the space between the rafters where the insulation. Water is insulation s enemy. Attach the baffles into each rafter bay using a power screwdriver and the screws that come with. Polyurethane or polystyrene spray foams can provide thorough coverage to roof rafters and attic walls in much less time than is needed for other materials.

Unlike solid insulation products that require careful measurement cutting and fitting spray foam can cover even the most uneven surface instantly. Its versatility is the key to its popularity whether being used to achieve. For an un ventilated roof construction a vapour open underlay or breather. Look for water stains on the roof sheathing or damp or moldy spots on attic joists and existing insulation as a clue to where leaks might be.

For such constructions the principles and benefits of unvented attic construction are similar to that occurring in a single family residence. Check out our how to video at the link below. Box out light fixtures. In this blog post we explore some of the options available.