Insulation Between Attic Rafters

If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor.

Insulation between attic rafters.

Make sure it is flush against the wood as even a 1 inch gap can cause a 20 percent heating loss. This generally would not be a sufficient thickness to achieve the u values required to meet building regulations and more insulation would need to be added. The will hold open an air gap of approximately 1 inch to allow airflow past a layer of insulation. Unlike solid insulation products that require careful measurement cutting and fitting spray foam can cover even the most uneven surface instantly.

Then feed the rolled insulation under wires and pipe if either is present. Push the insulation in place between the rafters but be careful not to compress the material. You can buy air ducts that staple to the inside of your roof above the eave vents and fit between the rafters. Https youtu be w4mkphzmqxw contact us restorat.

Check out our how to video at the link below. Time to get the insulation finished and get this place warm. If your attic is going to be converted into livable space then you will need to insulate the roof rafters. Install ventilation baffles into the space between the rafters before you install the insulation usually by stapling into place.

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. Hire a pro to install spray foam insulation. This limits the maximum thickness of the insulation between the rafters to between 50mm and 175mm. Place the plastic sheeting on top of the rolled insulation.

2d extend insulation into joist space to reduce air flows. The ones i ve used are made of styrofoam and iirc they cost around 2. Common rafter depths range from 100mm to 200mm. For rolled insulation place it between roof rafters.