Flat Roof With Exposed Rafters Insulation

I have an insulation factor of about 8 10 plus the reflectivity of the white tpo.

Flat roof with exposed rafters insulation. Fur down the rafters for more r value after evaluation air seal insulate and control the vapor diffusion. The bca specifies different insulation requirements for roofs and ceilings according to the climate zone. Insulation between the rafters can be designed in two ways. Flat roof insulation is in fixed to rafters with hammer in insulation fixings.

Pitched roof rafter level. Also there is a soffit vent but none at roof peak. To have exposed rafters. The warm flat roof has a plywood decking board that is laminted to a layer of.

Or insulate partially on the exterior side of the roof sheathing with an air control layer insulate in the rafters bays control the vapor diffusion and re work the fascia soffit etc. The flat roof part is easy because you have exposed rafters below use 150mm knauf earthwool loft insulation put it between the the rafters and use a insulation netting stapled to the rafters to hold insulation in place then plasterboard the ceiling. Following ten years of extensive testing isoboard thermal insulation has developed a proven solution to fixing its thermal insulation boards above rafters trusses or beams. Should i leave out the soffit vent.

The old roof was tar and gravel so the switch to tpo should show significant change. So my r 50 55 roof has a couple r 3 holes. The insulation for exposed rafters is installed on the exterior side of the finish ceiling. Breathing roof with low resistance lr underlay with this option insulation fully fills the rafter space without an airspace between the insulation and type lr underlay.

Pitched roofs with flat ceilings. This is often a layer of tongue and groove boards nailed to the exterior side of the exposed rafters. Roof insulation been there done that. Insulation is friction fitted between rafters with the option to underline the rafters with a layer of thermal laminate to further enhance thermal performance.

This past winter was the easiest to heat in the. Our insulation solutions for warm roofs maximise both space and thermal efficiency whilst also contributing to acoustic performance. We live in a micro climate hilly 2200 elevation area east of lake erie get some real lake effect snow. Now cathedral style roofs with exposed timbers can be incorporated into a home or building design while being insulated to provide a feeling of spaciousness in living areas something that is particularly relevant as.

We have a flat ceiling instead and i had to reinstall the two skylights. Installing roof and ceiling insulation can save up to 45 on heating and cooling energy. Not cheap but needs to be done right either way.