Secrets of proper roof insulation!

By Admin | Recommendations
12 May 2016

roof insulation can be made both in new construction and renovation.

What to consider when installing the roof construction in order to ensure the safety of the roof for many years!

  • The design of the roof membrane must be present. Vapor design protects against moisture from inside the building, and gidrovetrozaschita - from moisture from the outside.
  • Laying insulation in multiple layers with seams extensibility.This ensures protection against the appearance of "thermal bridges" which cause significant heat loss!

Step by step instructions roof insulation

Step 1: Be sure to install hydro and wind-proof membrane.

  1. On the upper face of the rafters set gidrovetrozaschitnaya membrane, for example, ISOVER HB.
  2. mounting membrane produce overlapping (10-15 cm).
  3. is best membrane is attached to the rafters construction stapler.
  4. Joints in the membrane, the mounting tape or glue construction adhesive tape.

During reconstruction the roof is necessary to check gidrovetrozaschitnoy membrane.

In the case of its absence - to establish and secure.The membrane should completely cover the rafters.

Step 2: Install roofing

installation of roofing to install insulation makes it possible to install the insulation material, regardless of the weather!

  1. top of hydro and wind-proof membrane for fixing it along the rafters set kontrobreshetka (spring rail) with a thickness of 15-25 mm.
  2. kontrobreshetki mounted on top of the horizontal battens for the installation of roofing.The most frequently used bars of 50 x 50 mm.
  3. then established roofing.

Step 3. Installing insulation

for insulation pitched roof, we recommend the use of mineral wool on the basis of fiberglass rolls, for example, ISOVER Pros.

1. Rolls conveniently mounted at a different step rafters.

  • A standard step of 600 mm - a knife cut the roll into 2 halves, each having a width of 610 mm and is installed into the frame.In this segment one can insulate the whole roof slope length.
  • under unusual step rafters the material is cut into slabs of the desired size.Important: plate length should be 1-2 cm longer than the distance between the rafters "in clear".

2. Material vraspor installed without fasteners so that the insulation fills the entire space between the rafters without gaps and crevices.


  • wide range of material thickness - 50 mm, 100 mm, 150 mm.
  • conveniently mounted roll - unrolled and ready, you can cut the required length and width.
  • savings on transportation: 3 rolls ISOVER Profi are placed in the car, and it is 43.93 m * insulation (material thickness in multiples of 50 mm)
  • conveniently insulate large areas - smaller joints between the insulation,less "cold bridges┬╗
  • Enhanced flexibility: the material is dense in any vertical and inclined frame without additional fasteners.
  • level of thermal protection: high (╬╗10 = 0,037).
  • material provides both reliable thermal insulation and soundproofing.

Step 4: Install a vapor barrier

to protect the structure from moisture inside the premises

  1. On the inner edge of the rafters is installed vapor barrier membrane ISOVER VS 80. The membrane is installed on top of the roof to the bottom lap (recommended overlap 10-15cm) and fastened to the rafters construction stapler.
  2. Joints in the membrane, the mounting tape or glue construction adhesive tape.

Step 5. An extra batten

required to remove moisture from the construction

between the vapor barrier membrane and the inner liner should leave a gap of 15-25 mm.To do this, set additional kontrobreshetka.

if necessary mounted horizontal battens for attaching a finishing material.

Step 6. Installing the inner lining

lining attached to the sheathing with nails or screws.

as cladding can be used sheets of drywall, plywood, paneling.

roof insulation outdoors (for new construction)

technology warming coincides with insulation inside the building.Changing only the sequence of steps:

  1. Installing a vapor barrier
  2. Installing insulation
  3. Installation gidrovetrozaschitnoy membrane
  4. Installation kontrobreshetki
  5. Installing horizontal battens
  6. Installing roofing.

you have any other questions?Then, now watch the video - installation instructions roofing material ISOVER Pros rolls!

ISOVER wants to heat your home, and you!

Hotline: 8 (800) 700-15-13.

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