How to lay a heater on a roof

In order to keep your home comfortable and energy-efficient, installing a heater is an essential step in making sure your roof is adequately insulated. A well-insulated roof keeps your house cooler in the summer and lowers your heating expenses in the winter. Here’s a helpful guide on installing a heater on your roof.

First, determine the kind of heater you require based on the climate and roof structure in your area. There are several choices, including stiff foam boards, blanket insulation, and reflective foils. Different degrees of insulation and installation complexity are available with each type. For example, reflective foils are simple to install but may need to be handled professionally to guarantee proper installation for optimal efficiency.

Make sure your roof is clean and clear of debris before starting the installation process. In order to guarantee that the insulation material adheres correctly and creates a tight seal against heat transfer, this preparatory step is essential. Clear the area of any debris, leaves, or other obstructions that might reduce the insulation’s efficiency with a sweep.

The insulation material should then be carefully measured and cut to fit snugly between your roof’s rafters or joists. It’s critical to eliminate any openings or gaps that could allow cold air to seep in or heat to escape. In addition to optimizing energy efficiency, properly installed insulation shields your roof from potential moisture and draft damage.

After the insulation has been cut to size, carefully press it into the desired location being cautious not to compress it too much. Compression that is too great can lessen its insulating qualities. To preserve the integrity of materials such as foam boards or blanket insulation over time, make sure they are firmly fastened in accordance with manufacturer instructions.

Lastly, check the roof after the heater is installed to make sure all the seams are sealed tightly and the insulation is intact. An effective barrier against heat transfer should be formed by properly installed insulation, maximizing your home’s comfort and energy efficiency all year long.

These instructions will help you install a heater on your roof in an efficient and comfortable manner, increasing the lifespan of your roof structure in the process.

1. Prepare the Roof Surface	Clear the roof of debris and ensure it"s dry and clean.
2. Measure and Cut Insulation	Measure the roof dimensions and cut insulation sheets to fit.
3. Lay the Insulation	Start at one end and lay the insulation sheets evenly across the roof.
4. Secure the Insulation	Use appropriate fasteners to secure the insulation in place.
5. Seal Gaps and Edges	Use sealant or tape to cover any gaps and edges for better insulation.

"Installing a heater on your roof correctly can greatly improve your home’s comfort and energy efficiency. The practical steps and considerations for installing a heater on various roof types are covered in this article, with a focus on safety, efficacy, and the value of expert advice when needed. Homeowners can make wise decisions to enhance their living space and guarantee the longevity and functionality of their roofing systems by being aware of these fundamentals."

Proper insulation of the roof of the house: Technology and video

Insulating a home’s roof is a crucial step in building or renovating a roof. The configuration of the roof, including the insulation and the needs of the room directly beneath the roof, influences the choice of heat-insulating layer installation technology.

The need to warm the roof

In what way can the roof be insulated to drastically cut down on the house’s heat loss? First and foremost, it’s important to select the appropriate insulation materials and precisely follow installation procedures. Your home’s heat efficiency will increase with a 15% qualitatively insulated roof, and you’ll be able to convert your attic into a year-round living space.

The residential attic homes in areas with harsh winters are those with the highest demands for roof insulation. A thinner layer of thermal insulation may be present in the roofing pie of the summer attic or operated attics. Thermal insulation is installed on the attic floor or the ceiling of residential buildings; typically, the roof beneath which the non-explosive attic is situated is uninsulated. The well-ventilated, non-residential attic is not insulated, preventing the rot of the roof frame’s wooden components.

Pitch and flat roof installation involve different techniques for installing roof insulation.

Thermal insulation of a flat roof

When installing a flat roof, how can a warm roof be created? Note that insulation can be added to a flat roof from the outside as well as the inside.

It is advised to install external insulation first, and then assess the need for interior insulation based on the winter’s experiences.

The following are the components of the flat roof pie:

• vapor barrier;
• heat insulator;
• waterproofing layer of rolled material;
• embankment (drainage + cement-sand mixture).

Mineral basalt wool is the most practical material to use for external insulation. Other hard heaters and polystyrene can also be used. It should be remembered that when installing roofing with strict fire safety regulations, polymer insulation cannot be used.

The insulation of the pitched roof

Insulation is used when roofing a roof in accordance with rafters. Understanding the correct way to insulate a house’s roof is crucial to avoiding errors that could eventually cause harm to wooden structures.

Mineral wool is the most widely used insulation in privately constructed homes. This is a reasonably priced, easily installed, non-flammable material that is readily available. However, the structure of the cotton wool itself encourages moisture to build up, which significantly reduces the material’s ability to insulate against heat and eventually causes the rafter system’s components to begin to rot. Therefore, it’s crucial to provide enough ventilation, steam, and roof pie waterproofing when creating insulation.

When building a new roof or repairing an existing one, the pitched roof’s heat insulator is installed from the attic. If repairs are made, the condition of the rafters must be examined before installing the insulation because any rotting parts need to be replaced with new ones. Applying a fireproof composition to all wooden structures is also worthwhile.

Among the pitched roof’s pie pieces are:

• finish roofing;
• a hydraulic tank (a layer of waterproofing material);
• heat insulator;
• vapor barrier;
• interior finish (optional).

High-quality air exchange is required for proper roof insulation, and air layers must be created between:

• trigger waterproofing and roofing;
• insulation and hydro -barrier;
• vapor barrier and internal casing (if it is provided).

At the cost of special fictions, one of which should be placed in the roof overhang and the other under the skate, air circulation (free tributary and removal) is provided.

Materials for thermal insulation of the pitched roof

Many materials are used in the technology of roof insulation. The most widely used heat insulators are slab polymeric materials, such as polyurethane foam and polystyrene foam, and mineral wool and glass wool (in plates or rolls). Although the installation principles are similar, it is important to note that mounting a slab material is considerably simpler and more practical.

Typically, waterproofing is achieved by using a roofing material or waterproofing membrane that is impermeable to water but has the ability to draw moisture out of the insulation. You can make the vapor barrier out of:

• roofing material;
• polyethylene film;
• Pergamine;
• foil materials laid in foil towards the attic.

It is advised to use a specific vapor barrier membrane to create a vapor barrier in order to create a roofing pie with high functional characteristics. This membrane keeps moisture and steam out of the roof pie and removes condensation from the insulation.

Stages of work on the insulation of the pitched roof

The roof insulation plan is very straightforward. Measuring the space between the rafters is a prerequisite first. Slabs of cotton heater material should be cut one centimeter in addition to the results. The heat insulator between the rafters will be fastened as a result. If the roofing system is initially installed and designed in the computation of the use of plate insulation of a specific width, this step of work is substantially simplified.

The hydraulic barrier needs to be fixed first if there isn’t any waterproofing between the rafters and the installed roofing. The membrane should completely enclose the rafters; it is most practical to secure it to both the roof crate in the spaces between the rafters and the rafters themselves using construction staplers. In order to eliminate moisture, waterproofing needs to be removed beneath an overhang in the lower portion of the roof. Remember that the insulation must be installed without the necessary air gap when using this technique to fasten the hydraulic barrier. It is advised to use the superdiffusion membrane as waterproofing because of this.

Nails with a step of roughly 10 cm are packed on the rafters when there is a waterproofing layer beneath the roofing. The distance between nails and the waterproofing layer should be three to five centimeters. It is necessary to pull the plastic thread or cord between the nails and knock it down to the end. This will facilitate the formation of an air space between the insulation and the hydraulic barrier. Filling the nails is also required if the heat insulator on the outside edge of the rafters is to be fastened with a cord rather than a crate for the internal sheathing.

If determining how to insulate the roof of the house, a cotton slab was chosen, then prepared elements must be squeezed slightly, inserted between the rafters. When using stiffer foam plates and similar materials, it is important to accurately adjust them to size so that the plates are tightly in the opening. Insulation is recommended to be performed in two layers. If you have to mount whole sheets in the opening, but narrower fragments, joining them in length or width, it is necessary to make sure that the joints of the second layer do not coincide with the joints of the first. The heat insulator should not protrude beyond the plane of rafter legs. If the rafters have insufficient width for the installation of two layers of insulation, an additional timber is nailed to them.

A stretched rope fastened to pre-stuffed nails is used to secure the heat insulator in place between the rafters. A crate from the racks intended to install the room’s internal sheathing is used as a fastener. Reiki are fastened with a step of 30 to 40 cm to rafters. In this instance, the vapor barrier is stapled to the rafters prior to the crate installation because the thickness of the rails enables you to establish the required air space between the skin and the vapor barrier.

Care is taken to ensure that the vapor barrier layer is tightly sealed during installation. The panel is laid with a minimum of 10 centimeters of overlap, and adhesive tape should be used in two layers to secure the joints. Vapor barrier installation has to be done in the wall joints and as close as feasible around the chip pipe. In the last phase, drywall or wood-containing plates are used to install a sheathing.

Learn the correct way to warm the house’s roof. Take a look at the video How to create roof insulation at home with a variety of plans, techniques, and insulation kinds

How to properly warm the roof by rafters?

Private home owners frequently wish to convert their standard attic into an attic equipped with roof insulation. These alterations are closely linked to the current roof’s modification and insulation.

Installing waterproofing in the space between the rafters

Additionally, the provision of ventilation, a high-quality steam device, and waterproofing will be linked to the insulation of roofs with orientation on any system.

1 What is best to warm the roof on rafters?

Currently, the most popular method of warming pitched rafter roofing is the one that uses polystyrene for thermal insulation.

When installing insulation between the rafters on a pitched roof, there is a specific method that must be followed.

One of the two most popular methods can be used to repair the insulation between the rafters, which maintains the stability of the roof structure. Mineral wool can also be used.

Despite this, a lot of people firmly believe that it is preferable to use foam insulation to insulate a private home’s attic rather than the pitched roof’s rafter structure.

It should be kept in mind that the fastening will travel a certain distance when warming the rafters on a pitched roof with foam.

Insulation installation needs to be done from the bottom up.

There are many different materials available today to insulate roofs and rafters. Polystyrene is most commonly used for roof insulation, particularly in the rafter portion.

There are unquestionably many benefits to using foam for thermal insulation of roofs and the rafter portion of the roof. However, you should research other materials and types that can be utilized to create dependable thermal insulation of the roof, as there are a number of other well-researched and dependable options available in addition to foam insulation.

It’s important to note that a lot of people believe that foam insulation for roofing provides a dependable and affordable solution for thermal insulation, but mineral wool is far less effective than the suggested technique.

You must be aware of how these tasks are completed and which roofing materials are most widely used in order to determine which approaches to improving the roof and warming the roof using PPU will be most successful.

Polyurethane foam spraying is one of the novel heat-insulation technologies available, in addition to a polystyrene insulation-based approach.

Each material should be taken into consideration in order to determine which types and quantities to use in order to guarantee the roof’s resistance to heat.

2 features of the materials used

Many people believe that minvat is the material that is best suited for warming roofs.

She is superior to previously announced polystyrene in a number of ways. Qualities that speak for themselves include the inadequacy of combustion and a high degree of fire safety when it comes to roofing.

The material that is being presented has a high degree of elasticity and can be oriented to any distance on the roof between the rafters.

As a result, Minvata maintains its original shape and the spacing between the plate positions remains constant.

Appropriate insulation for roofs

Its use is most relevant because there are no gaps between the elements on the roof during installation between the beams and the building material presented by the building materials. The following are the primary benefits of using this material to update the roof:

• Low cost;
• Common access to the insulation of the attic from the inside;
• Ease of installation;
• Good heat -insulating qualities.

The primary disadvantage of mineral wool is its higher level of hygroscopicity. The substance gets wet because it actively draws moisture into its structure.

The substance’s fiber spacing varies, and the product quickly loses 60–80% of its thermal insulation capacity.

Therefore, you must properly take care of its waterproofing before doing any insulation with cotton wool.

These days, polistyle foam is very popular—and, many experts say, completely undeservedly.

The rafters should be positioned 7-8 centimeters away from the waterproofing film. Nails

The truth is that using it to strengthen roofs carries a risk of serious consequences in the event that the material spontaneously catches fire.

The product emits fiery drops that spray in all directions when ignited. As a result of the material’s structure being crushed during installation and the growing gap between it and the roof, the material’s ability to retain heat diminishes over time.

The foam is typically covered in a layer of screed or plaster. Actually, modified polystyrene is what all extruded polystyrene foam is made of.

It is applied in locations where a high degree of stiffness is required for the mount. While it can burn, this material does not promote combustion.

Its structure is not crushed during installation, and it is fully capable of retaining its original shape. Unquestionably, extruded polystyrene foam has the following benefits:

The roof’s rafter system

• Moisture resistance;
• Durability;
• Lightweight;
• Strength;
• Stiffness;
• High thermal insulation indicators.

Warming roofs with poliuretan foam is a relatively new application. This substance is offered as a plastic that is filled with gas.

The filling is done with a special unit, and the total lack of gaps and fissures is unquestionably advantageous.

The building material that is being presented is not flammable, weighs relatively little, and maintains its shape well.

The cold bridges can be eliminated by spraying from a distance equal to the space between the rafters.

A notable disadvantage is a strong vapor permeability. As a result, you must ensure that supply and exhaust ventilation are created appropriately.

The process of installing insulation between rafters

Relatively recently, ecowata, also known as cellulose cotton, started to be used as insulation.

She has some benefits, though: it doesn’t burn, is safe for the environment, is lightweight, and can be blown into all the gaps. Furthermore, the material that is being presented cannot absorb moisture.

2.1 Installation nuances for insulation

This technology will be explained using the example of a 250 mm layer of mineral wool being laid. It makes the most sense to complete all work related to the suggested roof insulation method in the initial phases of house construction.

If not, the old roofing material and the attic mount will have to be removed.

To guarantee a high degree of roof waterproofing, the roofing material should not be laid until the rafter structure is fully installed.

Using this cele, the waterproofing superdiffusion membrane is laid out atop the installed rafters in the same manner as when mineral wool is heated to the building’s roof.

It’s critical to avoid mistaking her side. This is because neither party is able to pass steam in the other direction, and one of the parties is unable to pass water.

Insulation and waterproofing of intricately shaped roofs

Position the membrane so that the side with the highest level of moisture resistance is on the outside.

Installation begins at the lower cornice overhang and progresses to the upper roof section.

When gluing joints, a distance of 10 to 15 cm should be the main focus of the overlap, and special construction tape should be used.

Applying a waterproofing film in one continuous piece is not permitted. This is because it can get compressed during the winter, causing damage to the areas where it consolidates.

In light of this, the material is spread using a tiny overflow of 2 cm for every 1 m. With the use of construction staplers and unique brackets, the film is fastened to the rafters.

In the event that such a tool is not available, wide-hatted galvanized nails can be used.

The formation of a ventilation gap marks the end of the next step. Consequently, the overabundance of couples present in the insulation material will pass through it.

The crate is filled with wooden rails, the thickness of which varies based on the size of the ventilation gap itself, on top of the layer of waterproofing.

Rafts provide insulation for roofs.

Galvanized screws are used for reek fixing. Next, roofing material is installed atop the crate.

2.2 How is a heater installed in between rafters?

To ensure that the material takes on the proper form for work, it should be unpacked to the mineral wool at the start of the laying process and left to lie down for a while. The canvas or plates are then cut to fit the segments that need to be installed.

The width of the mineral wool canvas in this instance should precisely match the spacing between the beams; an additional 20 to 30 millimeters should be added to this measurement to form the tension.

A regular construction knife can be used for cutting mineral wool. It’s important to keep in mind, though, that all work needs to be done while wearing thick clothing, a respirator, and gloves to prevent microparticles from getting into exposed skin areas.

Subsequently, the product canvas is pushed into the gap between the rafters. The material’s edges that are close to the rafters are slightly bent as a result of the process.

In order for the edges to deal with this, you will need to press slightly on the center portion of the canvas. The roof can now be fully warmed through this point.

Heating of a metal tile roof

Consequently, wood rafters with insulation sandwiched between them will be dependable shielded from the damaging effects of moisture that can seep through roof damage.

The interior insulation will withstand the effects of the steam rising from the space with reliability, and the overall design that is being presented is meant to be maintained.

If the condition of the rafters needs to be checked, the disassembled parts must be covered with drywall sheets first, then a crate and vapor barrier film, and finally the installation can be completed again.

The waterproofing membrane inside the attic can be replaced from the inside if you need to insulate the roof of the old house but don’t want to remove the existing roofing material.

In this instance, the membrane must be wrapped around the rafters’ surface and inside the gap that exists between them.

You’ll need to apply an insulation layer on top. The same technology that was previously mentioned is the main focus of soft-type roof insulation.

Internal insulation for roofs

The distinction is that a layer of moisture-resistant plywood is added to the crate, which fills the space left by the waterproofing membrane between the roofing material and the membrane itself. Such plywood is the base upon which a soft roof is attached.

2.3 Insulation beneath the rafters in the roof

In residential buildings, the scheme that allows insulation to be installed under the rafters is rarely utilized.

It is typically used in the construction of industrial-type buildings with metal-fortified load-bearing elements.

If the construction site needs to be rebuilt, the plan that has been presented can be utilized.

Furthermore, it should be remembered that the room’s interior space will shrink considerably during the construction process.

In the event that ventilation requirements are raised, this option may also be used.

This is applicable to buildings with higher relative humidity levels. Thermal insulation material becomes less significant when the roof is heated in accordance with this plan.

Insulation between the rafters on the roof’s incline

This is because the vapor barrier may be harmed as a result of the high degree of openness.

Properties with this kind of insulated roofing need to have high-powered roofing fans installed or frequent ventilation.

Technology explained: rafters as roof insulation. Which way is better for doing roof insulation based on rafters?

How to make roof insulation, selection of materials for a pitched and flat roof

The roof needs to be insulated in order for it to function well and last a long time. The thermal insulation layer can be installed using a variety of materials and techniques, and selecting the best technology is always done on an individual basis. This article will discuss how to install insulation on a private home’s roof correctly.

The need to warm the roof

Naturally, the homeowner has the last say regarding whether or not to insulate the roof, but not before weighing the pros and cons of each option. The latter consist of extra expenses for setting up the roof and the work required to put in the heat-insulating layer.

Nevertheless, the costs and labor invested will eventually pay off. The primary benefit of roof insulation is that it reduces thermal losses throughout the building by 15% on average after installation. The roof itself is not required if the undercarbon space is not going to be used for housing; in this scenario, the heat insulation from the roof will be installed on the attic floor or the ceiling of a residential building. You will need high-quality roof ventilation to keep the structure from rotting.

When setting up a residential attic, roof insulation is particularly important, particularly if the building is located in an area with a severe climate. In these situations, you will need to pay extra attention to the attic’s heating and insulation if it will be used throughout the year. There are fewer stringent regulations concerning the summer attic’s insulation.

How to properly warm a flat roof

It is important to remember that thermal insulation can be found on both the inner and outer surfaces of a flat roof when warming it. It is best to begin with exterior insulation and determine whether it makes sense to warm the roof on the rafters from the inside after the first winter.

The flat roof’s roofing pie is made up of:

• Vapor barrier;
• Insulation layer;
• Waterproofing layer;
• Embankment layer.

The most common material used for external thermal insulation arrangements is basalt mineral wool, which is ideal for these uses. You can, however, select any kind of rigid insulation; polystyrene foam, for instance, would be a wise choice. It’s also important to keep in mind that polymer insulators cannot be used to insulate roofing that is vulnerable to fire.

The insulation of the pitched roof

The rafter system is where the pitched roof’s thermal insulation is mounted. To prevent mistakes during installation, the insulation must be designed before it is placed on the roof.

The components of the pitched roof are as follows:

• Roofing;
• Waterproofing layer;
• Thermal insulation;
• Vapor barrier material;
• Interior finish (optionally).

Minevat, which has excellent operational characteristics and is reasonably priced, is most frequently used as a thermal insulation material. The primary drawback of mineral insulation is its propensity to absorb moisture, which eventually causes the material’s thermal insulation qualities to disappear. Furthermore, the moisture beneath the roof causes the wooden details to gradually deteriorate.

Ventilation, hydro-, and vapor barriers must be added to the design in order to make up for the defect that has been described. When the roof is assembled or repaired, the insulation is placed from the incorrect side of the roof. When it comes to repair, it is best to replace any damaged wooden components and treat new ones with protective compositions before installing them.

Furthermore, adequate ventilation of the roof is necessary for the reliable and efficient operation of the insulation, so you must outfit the ventilation ducts between:

• Layer of waterproofing and finish coating;
• Thermal insulation and waterproofing layer;
• Vapor barrier and internal casing.

Materials for insulation of the pitched roof

For roof insulation, a variety of materials can be utilized; the most widely used ones are as follows:

Although the materials have different properties and features, they all effectively shield the roof from temperature exposure. It is only important to mention that choosing materials that have been released in plate form is preferable because mounting them is much easier.

The most common methods for arranging the waterproofing layer are standard roofing materials or specialized waterproofing membranes, which allow moisture to be drawn from the heat insulator but do not allow water to pass through. When installing waterproofing, it’s important to make sure the material’s tightness hasn’t been compromised.

Nonetheless, the best choice for a high-quality vapor barrier would be a vapor barrier membrane, which operates on the theory of unilateral moisture passing, meaning that condensate is extracted from the insulation and does not enter the roof pie’s interior cavities.

Roof insulation algorithm – how to lay thermal insulation

The following steps must be taken in order to install the insulation on the roof:

1. First measured the step of installation of rafter legs. The plates of thermal insulation material are cut in accordance with the dimensions obtained, but 1 cm is added to them – this will make it possible to stay in its place on its own. You can simplify this stage of work when arranging a new roof, calculating it so that the distance between the rafters corresponds to the width of the insulation plates.
2. In the space between the rafters and the finish coating, a waterproofing layer must be installed. The membrane needs to be attached to the rafters so that it envelops them. For fixation, you can use a construction stapler, with which the waterproofing is attached to the rafters and a crate. Waterproofing material must be brought to cornice overhangs so that the collected moisture goes beyond the roof. The described method of fastening does not allow you to equip full ventilation, so only a special waterproofing membrane should be used as a material.
3. If the waterproofing is already installed under the upper part of the roof, then the nails are clogged into the rafters every 10 cm so that the distance between them and the membrane is at least 3-5 cm. The driven nails allow you to stretch the cord along which the air gap in the space between waterproofing and thermal insulation material will pass. In the event that the insulation itself is attached using the cord, then the nails will need to be scored on the outside of the rafters.
4. When using insulation in the form of plates, the installation comes down to their insertion into the space between the rafters (of course, they will have to be slightly compressed so that they go to the gap). More rigid materials must be carefully adjusted to the roof before properly insulated the roof. For the greatest efficiency, it is worth installing two -layer insulation.
5. When installing narrow fragments requiring docking along one of the planes, you need to make sure that the joints of the first and second layer of thermal insulation do not coincide with each other. The thermal insulation layer should not go beyond the rafters, and if this happens, then an additional beam will have to be filled on the rafters.
6. For attaching the insulation, a cord or a crate made from the races can be used between the nails. These rails must be nailed to rafters at a distance of 30-40 cm from each other. In this case, the vapor barrier should be fixed before the crate is installed – due to the thickness of the rails, the air gap is provided.
7. When installing vapor barrier, you need to make sure that the material is installed hermetically. For this, the joints must be closed with two layers of adhesive tape. Particular attention should be paid to places to the points where the material is connected to the wall and the chimney. When all the structural elements are installed, you can proceed to the final stage – the installation of the skin.

In order to improve the roof’s thermal efficiency, roof insulation is a crucial component of the structure. The correct installation of roof insulation and the superior execution of all work will result in a dependable and excellent design that will serve its purpose for the duration of operation.

Roof insulation: how to install thermal insulation, how to lay down insulation, and how to properly warm the roof in rafters

Roof insulation: how to install thermal insulation, how to lay down insulation, and how to properly warm the roof in rafters

Keeping your home cozy and energy-efficient requires maintaining adequate insulation on your roof. Correctly installing a heater on your roof will shield your living area from the elements and ultimately reduce your heating expenses.

Selecting the appropriate insulation for your roof should be the first step. Think about things like the local building codes, the climate, and the roof’s structure. Fiberglass, spray foam, and rigid foam boards are common choices; each provides varying degrees of insulation and ease of installation.

Prepare the roof surface by thoroughly cleaning and repairing any damage before adding the insulation. This maximizes the effectiveness of the insulation material by ensuring a smooth and even application.

Take care to use the right installation methods when installing the insulation. Make sure all of the seams are firmly sealed to avoid air leaks, which can seriously affect how well the insulation works. To get the best results, carefully follow the manufacturer’s instructions.

Finally, think about the advantages of a well-insulated roof over the long run. In addition to providing instant energy savings, adequate insulation can prolong the life of your roof by lessening temperature swings and reducing deterioration. Investing in high-quality insulation and installation will increase the overall durability and comfort of your home.

Video on the topic

Warming of the roof of the house using ISOVER Warm roof

The attic insulation rolled knauf. I experiment.