Insulation Between Attic Rafters

Unlike solid insulation products that require careful measurement cutting and fitting spray foam can cover even the most uneven surface instantly.

Insulation between attic rafters.

You can buy air ducts that staple to the inside of your roof above the eave vents and fit between the rafters. Check out our how to video at the link below. 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. You can use rigid foam panels or do as tom silva does with nearly all houses these days.

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. 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.

Hire a pro to install spray foam insulation. Time to get the insulation finished and get this place warm. 2d extend insulation into joist space to reduce air flows. Place the plastic sheeting on top of the rolled insulation.

For insulation to reach its full potential for preventing warm air migration it must maintain the. The ones i ve used are made of styrofoam and iirc they cost around 2. 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.

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. This limits the maximum thickness of the insulation between the rafters to between 50mm and 175mm. Common rafter depths range from 100mm to 200mm. Make sure it is flush against the wood as even a 1 inch gap can cause a 20 percent heating loss.